This page provides a complete list of all BHM-led science target cartons that have been considered within SDSS-V, up to and including the DR20 data release. These BHM cartons can be grouped by a ‘targeting generation’ identifier. A targeting generation is simply a well-defined collection of versioned target cartons, which have been used at some point for plate design or as inputs to robostrategy (the FPS survey planning tool).
List of targeting generations
The table below provides a list of all distinct targeting generations presented in this data release. The catalogdb cross-match plan and tag point to specific versions of the cross-match code (and control parameters) that were used to generate the underlying catalogdb.catalog table (see here for more details). The robostrategy runs (if any) which used each targeting generation are indicated. The approximate dates when the targeting generation was used for observations at the telescope(s) are indicated.
| targeting generation | catalogdb cross- match plan | catalogdb cross- match tag | Dates active | Robo-strategy runs | Notes |
|---|---|---|---|---|---|
| “v0.plates” | 0.1.0 | 0.1.0 | 2020-10 to 2021-07 | n/a | This was the targeting generation used during SDSS-V/Plate observations. This targeting generation was informally labelled “SDSS-V plates” in SDSS DR18. |
| “v0.5.epsilon -7-core-0” | 0.5.0 | 0.2.2 | 2022-03 to 2023-04 | epsilon-7 -core-0 | This was one of the targeting generations used for initial SDSS-V/FPS observations |
| “v0.5.2” | 0.5.0 | 0.2.2 | 2022-04 to 2023-08 | zeta-0 | This was one of the targeting generations used for initial SDSS-V/FPS observations |
| “v0.5.3” | 0.5.0 | 0.2.2 | none | none | This was one of the targeting generations defined for initial SDSS-V/FPS planning. “v0.5.3” was previously released as part of SDSS DR18. |
| “v0.5.5” | 0.5.0 | 0.2.2 | 2022-08 to 2023-07 | zeta-3, zeta-4-commiss-ioning-0 | This was one of the targeting generations used for initial SDSS-V/FPS survey operations |
| “v1.0.2” | 1.0.0 | 1.0.0 | 2023-08 to 2023-11 | eta-3, eta-4, eta-5 | This was the first targeting generation based on the ‘v1’ carton cross-match (i.e. the first using Gaia DR3 + Legacy Survey DR10). It was used for the main FPS survey. |
| “v1.0.3” | 1.0.0 | 1.0.0 | 2023-11 to 2024-03 | eta-6 | An incremental update w.r.t. targeting generation “v1.0.2”. No change for BHM cartons. |
| “v1.0.4” | 1.0.0 | 1.0.0 | 2024-03 to 2024-10 | eta-7, eta-8, eta-9 | An incremental update w.r.t. targeting generation “v1.0.2”. No change for BHM cartons. |
| “v1.0.5” | 1.0.0 | 1.0.0 | 2024-10 to 2025-02 | theta-1 | A modest update w.r.t. targeting generation “v1.0.2”. In order to better match the updated survey exposure time allocation, some selected BHM cartons now allow a fallback to shorter exposure times. |
| “v1.0.5-boss-only” | 1.0.0 | 1.0.0 | 2025-01 to 2025-02 LCO only) | theta-2 -boss-only-2 | This targeting generation was briefly used for LCO observations during APOGEE-S maintenance. Only considered for dark_faint design modes, plus some bright time MC and cluster fields |
| “dr20.manual” | 1.0.0 | 1.0.0 | manual | Pseudo-targeting generation used to collate cartons used in manual FPS designs. |
Targeting generation “v0.plates”
The table below lists all BHM target cartons that are included in targeting generation “v0.plates”. Follow the carton name links for more details on each carton. Note that in DR18, this targeting generation was informally labelled as “SDSS-V plates”.
Targeting generations “v0.5.epsilon-7-core-0”, “v0.5.2”, “v0.5.3” and “v0.5.5”
The table below lists all BHM target cartons that are included in any of the “v0.5.epsilon-7-core-0”, “v0.5.2”, “v0.5.3” and “v0.5.5” targeting generations (used for early FPS planning and operations). Note that BHM target selection did not change across targeting generations “v0.5.2”, “v0.5.3” and “v0.5.5”. A detailed description of each carton is presented lower down this page, which can be navigated to easily by clicking the name of the carton.
Targeting generations “v1.0.2”, “v1.0.3”, “v1.0.4”, “v1.0.5”, and “v1.0.5-boss-only”
The table below lists all BHM target cartons that are included in any of the “v1.0.2”, “v1.0.3”, “v1.0.4”, “v1.0.5”, and “v1.0.5-boss-only” targeting generations (used for main FPS survey operations). Note that BHM target selection did not change across targeting generations “v1.0.2”, “v1.0.3” and “v1.0.4”. A detailed description of each carton is presented lower down this page, which can be navigated to easily by clicking the name of the carton.
Targeting generation “dr20.manual”
The table below lists all BHM target cartons that are included in the “dr20.manual” targeting generation (used for manualy constructed FPS designs). A detailed description of each carton is presented lower down this page, which can be navigated to easily by clicking the name of the carton.
| carton name | science program | target selection plan | target selection tag | status |
|---|---|---|---|---|
| manual_bhm_spiders_comm_lco | BHM COMMISSIONING | 0.5.23 | 0.3.22 | core |
| bhm_rm_core | BHM RM | 1.0.48 | 1.0.48 | core |
| bhm_rm_known_spec | BHM RM | 1.0.48 | 1.0.48 | core |
| bhm_rm_var | BHM RM | 1.0.48 | 1.0.48 | core |
| bhm_rm_ancillary | BHM RM | 1.0.48 | 1.0.48 | core |
BHM Carton descriptions
bhm_aqmes_med
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1100
Cadence options: dark_10x4_4yr
Implementation: bhm_aqmes.py
Number of targets: 2663
bhm_aqmes_med_faint
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3100
Cadence options: dark_10x4_4yr
Implementation: bhm_aqmes.py
Number of targets: 16853
bhm_aqmes_wide2
target_selection plan: 0.5.4
target_selection tag: 0.3.5
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1210, 1211
Cadence options: dark_2x4
Implementation: bhm_aqmes.py
Number of targets: 24142
bhm_aqmes_wide2_faint
target_selection plan: 0.5.4
target_selection tag: 0.3.5
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3210, 3211
Cadence options: dark_2x4
Implementation: bhm_aqmes.py
Number of targets: 99586
bhm_aqmes_bonus_core
target_selection plan: 0.5.4
target_selection tag: 0.3.5
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3300,3301
Cadence options: dark_1x4
Implementation: bhm_aqmes.py
Number of targets: 83163
bhm_aqmes_bonus_faint
target_selection plan: 0.5.4
target_selection tag: 0.3.5
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3302,3303
Cadence options: dark_1x4
Implementation: bhm_aqmes.py
Number of targets: 424163
bhm_aqmes_bonus_bright
target_selection plan: 0.5.4
target_selection tag: 0.3.5
crossmatch plan: 0.5.0
Summary: Spectroscopically confirmed, extremely optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 14.0<sdss_psfmag_i<18.0 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 4040,4041
Cadence options: bright_3x1
Implementation: bhm_aqmes.py
Number of targets: 10848
bhm_rm_ancillary
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A supporting sample of candidate QSOs which have been selected by the Gaia-unWISE AGN catalog (Shu et al., 2019) and/or the SDSS XDQSO catalog (Bovy et al., 2011). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via external ancillary methods (photo_bitmask & 3 != 0); ii) have 15<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and v) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, bhm_rm_tweaks
Target priority options: 900-1050
Cadence options: dark_174x8, dark_100x8
Implementation: bhm_rm.py
Number of targets: 943
bhm_rm_core
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A sample of candidate QSOs selected via the methods presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via the Skew-T algorithm (skewt_qso == 1); ii) have 17<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; vi) have detections in all of the gri bands (a Gaia detection is sufficient in the CVZ-S/SEP field);and vii) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, bhm_rm_tweaks
Target priority options: 900-1050
Cadence options: dark_174x8, dark_100x8
Implementation: bhm_rm.py
Number of targets: 3721
bhm_rm_var
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A sample of candidate QSOs selected via their optical variability properties, as presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) have significant variability in the DES or PanSTARRS1 multi-epoch photometry (var_sn[g]>3 and var_rms[g]>0.05); ii) have 17<psfmag_i<20.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and vi) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, bhm_rm_tweaks
Target priority options: 900-1050
Cadence options: dark_174x8, dark_100x8
Implementation: bhm_rm.py
Number of targets: 934
bhm_rm_known_spec
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A sample of known QSOs identified through optical spectroscopy from various projects, as collated by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select targets which satisfy all of the following: i) are flagged as having a spectroscopic identification (in the parent catalog or in the bhm_rm_tweaks table); ii) have 15<psfmag_i<21.7 AB (SDSS-RM, CDFS, ELIAS-S1 field), 16<G<21.7 Vega (CVZ-S/SEP field), 15<psfmag_i<21.5 AB (COSMOS and XMM-LSS fields); iii) have a spectroscopic redshift in the range 0.005<z<7; iv) are not vetoed due to results of visual inspections of recent spectroscopy
Catalogdb tables required: bhm_rm_v0_2, bhm_rm_tweaks
Target priority options: 900-1050
Cadence options: dark_174x8, dark_100x8
Implementation: bhm_rm.py
Number of targets: 3022
bhm_csc_apogee
target_selection plan: 0.5.15
target_selection tag: 0.3.14
crossmatch plan: 0.5.0
Summary: X-ray sources from the CSC2.0 source catalog with NIR counterparts in 2MASS PSC
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc_v2). Select entries satisfying the following criteria: i) NIR counterpart is from the 2MASS catalog, ii) 2MASS H-band magnitude measurement is not null and in the accepted range for SDSS-V: 7.0<H<14.0. Allocate cadence (exposure time) requests based on H-band magnitude.
Catalogdb tables required: bhm_csc_v2
Target priority options: 2930-2939
Cadence options: bright_1x1,bright_3x1
Implementation: bhm_csc.py
Number of targets: 48928
bhm_csc_boss
target_selection plan: 0.5.15
target_selection tag: 0.3.14
crossmatch plan: 0.5.0
Summary: X-ray sources from the CSC2.0 source catalog with counterparts in Panstarrs1-DR1 or Gaia DR2.
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc_v2). Select entries satisfying the following criteria: i) optical counterpart is from the PanSTARRS1 or Gaia DR2 catalogs, ii) optical flux/magnitude is in the accepted range for SDSS-V: psfmag_[g,r,i,z]>13.5 AB and non-Null psfmag_i (objects with PanSTARRS1 counterparts); G,RP>13.0 Vega (Gaia DR2 counterparts). Deprioritize targets which already have good quality SDSS spectroscopy. Allocate cadence (exposure time) requests based on optical brightness (PS1 psfmag_i or Gaia G).
Catalogdb tables required: bhm_csc_v2, panstarrs1, tic_v8, tables of existing SDSS spectroscopy
Target priority options: 1920-1939, 2920-2939
Cadence options: bright_1x1,dark_1x2,dark_1x4
Implementation: bhm_csc.py
Number of targets: 122731
bhm_gua_bright
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A sample of optically bright candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the (dereddened) magnitude range suitable for BOSS spectroscopy in bright time (Gdered>13.0 and RPdered>13.5, as well as Gdered<18.5 or RPdered<18.5, Vega mags), iii) do not have good optical spectroscopic measurements from a previous iteration of SDSS.
Catalogdb tables required: gaia_unwise_agn, tic_v8, tables of existing SDSS spectroscopy
Target priority options: 4040
Cadence options: bright_2x1
Implementation: bhm_gua.py
Number of targets: 254601
bhm_gua_dark
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: A sample of optically faint candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the (dereddened) magnitude range suitable for BOSS spectroscopy in dark time (Gdered>16.5 and RPdered>16.5, as well as Gdered<21.2 or RPdered<21.0, Vega mag), iii) do not have good optical spectroscopic measurements from a previous iteration of SDSS.
Catalogdb tables required: gaia_unwise_agn, tic_v8, several tables of existing SDSS spectroscopy
Target priority options: 3400
Cadence options: dark_1x4
Implementation: bhm_gua.py
Number of targets: 2156582
bhm_colr_galaxies_lsdr8
target_selection plan: 0.5.16
target_selection tag: 0.3.13
crossmatch plan: 0.5.0
Summary: A supplementary magnitude limited sample of optically bright galaxies selected from the legacysurvey.org/dr8 optical/IR imaging catalog. Selection is based on optical morphology, lack of Gaia DR2 parallax, and several magnitude cuts.
Simplified description of selection criteria: Starting from the legacy_survey_dr8 catalog (lsdr8), select entries satisfying all of the following criteria: i) lsdr8 morphological type != ‘PSF’, ii) zero or Null parallax in Gaia DR2, iii) dereddened z-band model mag<19.0 AB, and dereddened z-band fiber mag<19.5 AB, and 16<apparent z-band fiber mag<19.0 AB, and apparent r-band fiber mag>16.0 AB, and Gaia G>15.0 Vega, and Gaia RP>15.0 Vega;
Catalogdb tables required: legacy_survey_dr8
Target priority options: 7100
Cadence options: bright_1x1, dark_1x1, dark_1x4
Implementation: bhm_galaxies.py
Number of targets: 7320203
bhm_spiders_agn_lsdr8
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is the highest priority carton for SPIDERS AGN wide area follow up. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to legacysurvey.org/dr8 optical/IR counterparts. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Due to the footprint of lsdr8, nearly all targets in this carton are located at high Galactic latitudes |b|>15 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 point source → legacysurvey.org/dr8 associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.1, iii) have 13.5<fibertotmag_r<22.5 or 13.5<fibertotmag_z<21.0, iv) are not saturated in LegacySurvey imaging, v) have at least one observation in r-band and at least one observation in g– or z-band, vi) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→optical/IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1520-1523, 1720-1723
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 235745
bhm_spiders_agn_ps1dr2
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is the second highest priority carton for SPIDERS AGN wide area follow up, it is included to expand the survey footprint beyond legacysurvey/dr8. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team, first to CatWISE2020 mid-IR sources, and then to optical counterparts from the PanSTARRS1 dr2 catalog. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg), and at Dec>-30 deg, spanning a wide range of Galactic latitudes. Targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 point source → CatWISE2020 → Pan-STARRS1 associations (method: NWAY assisted by IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→IR cross-match probability of p_any>0.1, iii) have psfmag_g, psfmag_r, psfmag_i, psfmag_z>13.5 AB and at least one of psfmag_g<22.5, psfmag_r<22.0, psfmag_i<21.5 or psfmag_z<20.5, iv) are not associated with a bad Pan-STARRS1-dr2 image stack, v) have non-null measurements of psfmag_g, psfmag_r and psfmag_i, vi) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, panstarrs1, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1530-1533,1730-1733,3530-3533,3730-3732
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 200681
bhm_spiders_agn_gaiadr2
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is the third highest priority carton for SPIDERS AGN wide area follow up, it is included to expand the survey footprint to the full hemisphere where X-ray sources are available (beyond legacysurvey/dr8 and Pan-STARRS1). The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team, first to CatWISE2020 mid-IR sources, and then to optical counterparts from the Gaia DR2 catalog. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). The targets in this carton are distributed over a wide range of Galactic latitudes, but targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 point source → CatWISE2020 → Gaia DR2 associations (method: NWAY assisted by IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→IR cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, tic_v8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1540-1543,1740-1743,3540-3543,3740-3742
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 324576
bhm_spiders_agn_skymapperdr2
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is a lower ranked carton for SPIDERS AGN wide area follow up, it supplements the survey in areas which rely on Gaia DR2 (beyond LegacySurvey DR8 and Pan-STARRS1) by recovering extended targets (galaxies) that are missed by Gaia. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team, first to CatWISE2020 mid-IR sources, and then to optical counterparts from the SkyMapper-dr2 catalog. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg) and at Dec<0deg, spanning a wide range of Galactic latitudes. Targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 point source → CatWISE2020 → SkyMapper-dr2 associations (method: NWAY assisted by IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→IR cross-match probability of p_any>0.1, iii) have psfmag_g, psfmag_r, psfmag_i, psfmag_z>13.5 AB and at least one of psfmag_g<22.5, psfmag_r<22.0, psfmag_i<21.5 or psfmag_z<20.5, iv) Are not associated with a bad SkyMapper source detection (flags<4), v) have non-null measurements in at least one of g_psfmag, r_psfmag and i_psfmag, vi) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, skymapper_dr2, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1550-1553,1750-1753,3550-3553,3750-3752
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 82683
bhm_spiders_agn_supercosmos
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is a lower ranked carton for SPIDERS AGN wide area follow up, it supplements the survey in areas which rely on Gaia-DR2 (beyond LegacySurvey DR8 and Pan-STARRS1) by recovering extended targets (galaxies) that are missed by Gaia. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team, first to CatWISE2020 mid-IR sources, and then to optical counterparts from the SuperCosmos Sky Surveys catalog (derived from scans of photographic plates). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg), spanning a wide range of Galactic latitudes. Targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 point source → CatWISE2020 → SuperCosmos associations (method: NWAY assisted by IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→IR cross-match probability of p_any>0.1, iii) have scormagb, scormagr2, scormagi>13.5 Vega and at least one of scormagb<22.5, scormagr2<22.0, or scormagi<21.5, iv) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, supercosmos, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1560-1563,1760-1763,3560-3563,3760-3763
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 430780
bhm_spiders_agn_efeds_stragglers
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is an opportunistic supplementary carton for SPIDERS AGN follow up, aiming, where fiber resources allow, to gather a small additional number of spectra for targets in the eFEDS field (which has been repeatedly surveyed in earlier iterations of SDSS). This carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the eROSITA/eFEDS performance validation field. The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to legacysurvey.org/dr8 optical/IR counterparts. All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg). These targets do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eFEDS point source → LegacySurvey DR8 associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, see Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.1, iii) have 13.5<fibertotmag_r<22.5 or 13.5<fibertotmag_z<21.0, iv) are not saturated in LegacySurvey imaging, v) have at least one observation in r-band and at least one observation in g- or z-band, vi) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→optical/IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1510-1514, 1710-1714
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 15926
bhm_spiders_agn_sep
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This special carton is dedicated to SPIDERS AGN follow up in the CVZ-S/SEP field. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in a dedicated analysis of the first 6 months of eROSITA scanning data near the SEP. The X-ray sources have been cross-matched by the eROSITA-DE team, first to CatWISE2020 mid-IR sources, and then to optical counterparts from the Gaia DR2 catalog, using additional filtering (including Gaia EDR3 astrometric info) to reduce the contamination from foreground stars located in the LMC. All targets are located within 1.5 deg of the SEP (RA,Dec = 90.0,-66.56 deg).
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1/SEP point source → CatWISE2020 → Gaia DR2 associations (method: NWAY assisted by IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→IR cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 AB. We deprioritise targets if any of the following criteria are met: a) the X-ray detection likelihood is <8.0, b) the target is a secondary X-ray→IR association. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_agn, tic_v8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj
Target priority options: 1510,1512
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_agn.py
Number of targets: 697
bhm_spiders_clusters_lsdr8
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is the highest priority carton for SPIDERS Clusters wide area follow up. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The X-ray clusters have been associated by the eROSITA-DE team to legacysurvey.org/dr8 (lsdr8) optical/IR counterparts using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Due to the footprint of lsdr8, nearly all targets in this carton are located at high Galactic latitudes |b|>15 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 → legacysurvey.org/dr8 eROMAPPER cluster associations, select targets which meet all of the following criteria: i) have 13.5<fibertotmag_r<21.0 or 13.5<fibertotmag_z<20.0, ii) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega, iii) do not have existing good quality SDSS spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_clusters, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1501,1630-1659
Cadence options: bright_2x1, dark_1x2, dark_1x4
Implementation: bhm_spiders_clusters.py
Number of targets: 87490
bhm_spiders_clusters_ps1dr2
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is the second highest priority carton for SPIDERS Clusters wide area follow up, it is designed to expand the survey area beyond the legacysurvey/dr8 footprint. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions of the first 6 months of eROSITA all sky survey data (eRASS:1). The X-ray clusters have been associated by the eROSITA-DE team to the PanSTARRS1 dr2 catalog using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Nearly all targets in this carton are located at high Galactic latitudes |b|>15 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:1 → Pan-STARRS1-dr2 eROMAPPER cluster associations, select targets which meet all of the following criteria: i) have psfmag_r, psfmag_i, psfmag_z>13.5 AB and at least one of psfmag_r<21.5, psfmag_i<21.0 or psfmag_z<20.5, ii) do not have existing good quality SDSS spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_clusters, panstarrs1, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1502,1660-1689
Cadence options: bright_2x1,dark_1x2,dark_1x4
Implementation: bhm_spiders_clusters.py
Number of targets: 86179
bhm_spiders_clusters_efeds_stragglers
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: This is an opportunistic supplementary carton for SPIDERS Clusters follow up, aiming, where fiber resources allow, to gather a small additional number of spectra for targets in the eFEDS field (which has been repeatedly surveyed in earlier iterations of SDSS). The carton provides a list of galaxies which are candidate members of clusters selected from early reductions of the eROSITA performance verification survey in the eFEDS field. The X-ray clusters have been associated by the eROSITA-DE team to legacysurvey.org/dr8 optical/IR counterparts. All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS → legacysurvey.org/dr8 cluster associations (eROMAPPER, Rykoff et al., 2014; Ider Chitham et al., 2020; Liu et al., 2022), select targets which meet all of the following criteria: i) have 13.5<fibertotmag_r<21.0 or 13.5<fibertotmag_z<20.0, ii) if detected by Gaia DR2 then have G>13.5 and RP>13.5 Vega, iii) do not have existing good quality SDSS spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_clusters, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1500,1600-1629
Cadence options: dark_1x2,dark_1x4
Implementation: bhm_spiders_clusters.py
Number of targets: 3060
bhm_spiders_agn-efeds
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A carton used during SDSS-V plate-mode observations, that contains candidate AGN targets found in the eROSITA/eFEDS X-ray survey field. This carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions (‘c940/V2T’) of the eROSITA/eFEDS performance validation field. The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to legacysurvey.org/dr8 optical/IR counterparts. All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS point source → legacysurvey.org/dr8 associations (primarily via NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, see Salvato et al., 2022, supplemented by counterparts selected via a Likelihood Ratio using r-band magnitudes), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray → optical/IR cross-match probability of either p_any>0.1 (NWAY associations) or LR>0.2 (Likelihood Ratio associations), iii) have fibermag_r>16.5 and fibermag_r<22.0 or fibermag_z<21.0, and iv) did not receive high quality spectroscopy during the SDSS-IV= observations of the eFEDS field (Abdurro’uf et al., 2022). We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy in SDSS DR16, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→optical/IR association, or d) if the optical/IR counterpart was only chosen by the LR method. All targets were assigned a nominal cadence of: bhm_spiders_1x8 (8x15mins dark time).
Catalogdb tables required: bhm_spiders_agn_superset, legacy_survey_dr8, sdss_dr16_specobj and bhm_efeds_veto
Target priority options: 1510-1519
Cadence options: bhm_spiders_1x8
Implementation: bhm_spiders_agn.py
Number of targets: 12459
bhm_spiders_clusters-efeds-ls-redmapper
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A carton used during SDSS-V plate-mode observations, that contains galaxy cluster targets found in the eROSITA/eFEDS X-ray survey field. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions (‘c940’) of the eROSITA performance verification survey in the eFEDS field. The parent sample of galaxy clusters and their member galaxies have been selected via a joint analysis of X-ray and (several) optical/IR datasets using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). This particular carton relies on optical/IR data from legacysurvey.org/dr8. All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS → optical/IR cluster associations, select targets which meet all of the following criteria: i) are selected by eROMAPPER applied to legacysurvey.org/dr8 photometric data, ii) have eROSITA X-ray detection likelihood > 8.0, iii) have fibermag_r>16.5 and fibermag_r<21.0 or fibermag_z<20.0, iv) do not have existing good quality (SDSS or external) spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. All targets were assigned a nominal cadence of: bhm_spiders_1x8 (8x15mins dark time).
Catalogdb tables required: bhm_spiders_clusters_superset, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1500, 1511–1610
Cadence options: dark_1x8
Implementation: bhm_spiders_clusters.py
Number of targets: 4432
bhm_spiders_clusters-efeds-sdss-redmapper
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A carton used during SDSS-V plate-mode observations, that contains galaxy cluster targets found in the eROSITA/eFEDS X-ray survey field. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions (‘c940’) of the eROSITA performance verification survey in the eFEDS field. The parent sample of galaxy clusters and their member galaxies have been selected via a joint analysis of X-ray and (several) optical/IR datasets using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). This particular carton relies on optical/IR data from SDSS/dr13. All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS → optical/IR cluster associations, select targets which meet all of the following criteria: i) are selected by eROMAPPER applied to SDSS/dr13 photometric data, ii) have eROSITA X-ray detection likelihood > 8.0, iii) have fibermag_r>16.5 and fibermag_r<21.0 or fibermag_z<20.0, iv) do not have existing good quality (SDSS or external) spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. All targets were assigned a nominal cadence of: bhm_spiders_1x8 (8x15mins dark time).
Catalogdb tables required: bhm_spiders_clusters_superset, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1500, 1511-1610
Cadence options: dark_1x8
Implementation: bhm_spiders_clusters.py
Number of targets: 4304
bhm_spiders_clusters-efeds-hsc-redmapper
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A carton used during SDSS-V plate-mode observations, that contains galaxy cluster targets found in the eROSITA/eFEDS X-ray survey field. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions (‘c940’) of the eROSITA performance verification survey in the eFEDS field. The parent sample of galaxy clusters and their member galaxies have been selected via a joint analysis of X-ray and (several) optical/IR datasets using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). This particular carton relies on optical/IR data from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS → optical/IR cluster associations, select targets which meet all of the following criteria: i) are selected by eROMAPPER applied to HSC-SSP photometric data, ii) have eROSITA X-ray detection likelihood > 8.0, iii) have fibermag_r>16.5 and fibermag_r<21.0 or fibermag_z<20.0, iv) do not have existing good quality (SDSS or external) spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. All targets were assigned a nominal cadence of: bhm_spiders_1x8 (8x15mins dark time).
Catalogdb tables required: bhm_spiders_clusters_superset, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1500, 1511-1610
Cadence options: dark_1x8
Implementation: bhm_spiders_clusters.py
Number of targets: 924
bhm_spiders_clusters-efeds-erosita
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A carton used during SDSS-V plate-mode observations, that contains galaxy cluster targets found in the eROSITA/eFEDS X-ray survey field. The carton provides a list of galaxies which are candidate members of clusters selected from early reductions (‘c940’) of the eROSITA performance verification survey in the eFEDS field. The parent sample of galaxy clusters and their member galaxies have been selected via a joint analysis of X-ray and (several) optical/IR datasets. This particular carton includes counterparts to X-ray extended sources that were not selected by the eROMAPPER red seuence finder algorithm when applied to any of the legacysurvey/dr8, SDSS/dr13 or HSC-SSP datasets (i.e. complementary to the cartons: bhm_spiders_clusters-efeds-ls-redmapper, bhm_spiders_clusters-efeds-sdss-redmapper and bhm_spiders_clusters-efeds-hsc-redmapper). All targets in this carton are located within the eFEDS field (approx 126<RA<146, -3<Dec<+6 deg).
Simplified description of selection criteria: Starting from a parent catalog of eFEDS → optical/IR cluster associations, select targets which meet all of the following criteria: i) are identified as being X-ray extended but not selected via the eROMAPPER algorithm, ii) have eROSITA X-ray detection likelihood > 8.0, iii) have fibermag_r>16.5 and fibermag_r<21.0 or fibermag_z<20.0, iv) do not have existing good quality (SDSS or external) spectroscopy. We assign a range of priorities to targets in this carton, with BCGs top ranked, followed by candidate member galaxies according their probability of membership. All targets were assigned a nominal cadence of: bhm_spiders_1x8 (8x15mins dark time).
Catalogdb tables required: bhm_spiders_clusters_superset, legacy_survey_dr8, several tables of existing SDSS spectroscopy including sdss_dr16_specobj, bhm_efeds_veto
Target priority options: 1500, 1511-1535
Cadence options: dark_1x8
Implementation: bhm_spiders_clusters.py
Number of targets: 15
bhm_aqmes_med
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1100
Cadence options: bhm_aqmes_medium_10x4
Implementation: bhm_aqmes.py
Number of targets: 2663
bhm_aqmes_med-faint
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3100
Cadence options: bhm_aqmes_medium_10x4
Implementation: bhm_aqmes.py
Number of targets: 16853
bhm_aqmes_wide2
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 330 fields within the SDSS QSO footprint, where the choice of survey area prioritized fields that overlapped with the SPIDERS footprint (approx 180<l<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, and that lie within 1.49 degrees of at least one AQMES-wide2 field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1210
Cadence options: bhm_aqmes_wide_2x4
Implementation: bhm_aqmes.py
Number of targets: 18376
bhm_aqmes_wide2-faint
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 330 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<l<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, and that lie within 1.49 degrees of at least one AQMES-wide2 field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3210
Cadence options: bhm_aqmes_wide_2x4
Implementation: bhm_aqmes.py
Number of targets:
bhm_aqmes_wide3
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 95 fields within the SDSS QSO footprint, where the choice of survey area prioritized fields having higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, and that lie within 1.49 degrees of at least one AQMES-wide3 field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1210
Cadence options: bhm_aqmes_wide_3x4
Implementation: bhm_aqmes.py
Number of targets: 5785
bhm_aqmes_wide3-faint
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 95 fields within the SDSS QSO footprint, where the choice of survey area prioritized fields having higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, and that lie within 1.49 degrees of at least one AQMES-wide2 field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3210
Cadence options: dark_2x4
Implementation: bhm_aqmes.py
Number of targets: 35803
bhm_aqmes_bonus-dark
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed SDSS QSOs, with magnitudes in the range appropriate for observations in dark time, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.5<sdss_psfmag_i<21.5 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3300
Cadence options: dark_spiders_1x4
Implementation: bhm_aqmes.py
Number of targets: 579590
bhm_aqmes_bonus-bright
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: Spectroscopically confirmed SDSS QSOs, with magnitudes in the range appropriate for observations in bright time, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 14.0<sdss_psfmag_i<18.0 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 4040
Cadence options: bhm_boss_bright_3x1
Implementation: bhm_aqmes.py
Number of targets: 10848
bhm_rm_ancillary
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A supporting sample of candidate QSOs which have been selected by the Gaia-unWISE AGN catalog (Shu et al., 2019) and/or the SDSS XDQSO catalog (Bovy et al., 2011). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via external ancillary methods (photo_bitmask & 3 != 0); ii) have 15<psfmag_i<21.5 AB; iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not classified as a STAR in SDSS DR16 spectroscopy; and v) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, sdss_dr16_specobj
Target priority options: 1004-1050
Cadence options: bhm_rm_174x8
Implementation: bhm_rm.py
Number of targets: 948
bhm_rm_core
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A sample of candidate QSOs selected via the methods presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via the Skew-T algorithm (skewt_qso == 1, and skewt_qso_prior == 1 for targets in the CVZ-S/SEP field); ii) have 17<psfmag_i<21.5 AB; iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not classified as a STAR in SDSS DR16 spectroscopy; vi) have detections in all of the gri bands (a Gaia detection is sufficient in the CVZ-S/SEP field); and vii) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, sdss_dr16_specobj
Target priority options: 1002-1050
Cadence options: bhm_rm_174x8
Implementation: bhm_rm.py
Number of targets:
bhm_rm_var
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A sample of candidate QSOs selected via their optical variability properties, as presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) have significant variability in the DES or PanSTARRS1 multi-epoch photometry (var_sn[g]>3 and var_rms[g]>0.05); ii) have 17<psfmag_i<20.5 AB; iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not classified as a STAR in SDSS DR16 spectroscopy; and vi) do not lie in the SDSS-RM field
Catalogdb tables required: bhm_rm_v0_2, sdss_dr16_specobj
Target priority options: 1003-1050
Cadence options: bhm_rm_174x8
Implementation: bhm_rm.py
Number of targets: 992
bhm_rm_known-spec
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A sample of known QSOs identified through optical spectroscopy from various projects, as collated by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select targets which satisfy all of the following: i) are flagged as having a spectroscopic identification in the parent catalog; ii) have 15<psfmag_i<21.7 AB (SDSS-RM, CDFS, ELIAS-S1, CVZ-S/SEP fields), or 15<psfmag_i<21.5 AB (COSMOS and XMM-LSS fields); iii) have a spectroscopic redshift in the range 0.005<z<7; iv) are not classified as a STAR in SDSS DR16 spectroscopy;
Catalogdb tables required: bhm_rm_v0_2, sdss_dr16_specobj
Target priority options: 1001-1050
Cadence options: bhm_rm_174x8
Implementation: bhm_rm.py
Number of targets: 2992
bhm_csc_apogee
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: X-ray sources from the CSC2.0 source catalog with NIR counterparts in 2MASS PSC
Simplified description of selection criteria: Starting from the parent catalog of CSC2.0 sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the 2MASS catalog, ii) 2MASS H-band magnitude measurement is in the accepted range for SDSS-V: 10.0<H<15.0.
Catalogdb tables required: bhm_csc
Target priority options: 4000
Cadence options: bhm_csc_apogee_3x1
Implementation: bhm_csc.py
Number of targets: 10633
bhm_csc_boss-dark
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: X-ray sources from the CSC2.0 source catalog with counterparts in PanSTARRS1-DR1
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the PanSTARRS1 catalog, ii) optical flux/magnitude is in a range suited to SDSS-V dark time observations: 16.0<psfmag_i<22.0 AB.
Catalogdb tables required: bhm_csc
Target priority options: 3000
Cadence options: bhm_csc_boss_1x4
Implementation: bhm_csc.py
Number of targets: 65350
bhm_csc_boss-bright
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: X-ray sources from the CSC2.0 source catalog with counterparts in PanSTARRS1-DR1
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the PanSTARRS1 catalog, ii) optical flux/magnitude is in a range suited to SDSS-V bright time observations: 13.0<psfmag_i<18.0 AB.
Catalogdb tables required: bhm_csc
Target priority options: 4000
Cadence options: bhm_csc_boss_1x1
Implementation: bhm_csc.py
Number of targets: 22173
bhm_gua_dark
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A sample of optically faint candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the (dereddened) magnitude range suitable for BOSS spectroscopy in dark time (Gdered>16.5 and RPdered>16.5, as well as Gdered<21.2 or RPdered<21.0, Vega mag), iii) do not have good quality optical spectroscopic measurements in SDSS DR16
Catalogdb tables required: gaia_unwise_agn, tic_v8, gaia_dr2_source, sdss_dr16_specobj
Target priority options: 3400
Cadence options: bhm_spiders_1x4
Implementation: bhm_gua.py
Number of targets: 2085729
bhm_gua_bright
target_selection plan: 0.1.0
target_selection tag: 0.1.0
crossmatch plan: 0.1.0
Summary: A sample of optically bright candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the (dereddened) magnitude range suitable for BOSS spectroscopy in bright time (Gdered>13.0 and RPdered>13.5, as well as Gdered<18.5 or RPdered<18.5, Vega mag), iii) do not have good quality optical spectroscopic measurements in SDSS DR16.
Catalogdb tables required: gaia_unwise_agn, tic_v8, gaia_dr2_source, sdss_dr16_specobj
Target priority options: 4040
Cadence options: bhm_boss_bright_3x1
Implementation: bhm_gua.py
Number of targets: 237236
bhm_csc_apogee
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: X-ray sources from the CSC2.0 source catalog with NIR counterparts in 2MASS PSC
Simplified description of selection criteria: Starting from the parent catalog of CSC2.0 sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the 2MASS catalog, ii) 2MASS H-band magnitude measurement is in the accepted range for SDSS-V: 10.0<H<15.0.
Catalogdb tables required: bhm_csc
Target priority options: 4000
Cadence options: bhm_csc_apogee_3x1
Implementation: bhm_csc.py
Number of targets: 13437
bhm_csc_boss_dark
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: X-ray sources from the CSC2.0 source catalog with counterparts in PanSTARRS1-DR1
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the PanSTARRS1 catalog, ii) optical flux/magnitude is in a range suited to SDSS-V dark time observations: 16.0<psfmag_i<22.0 AB .
Catalogdb tables required: bhm_csc
Target priority options: 3000
Cadence options: bhm_csc_boss_1x4
Implementation: bhm_csc.py
Number of targets: 65296
bhm_csc_boss_bright
target_selection plan: 0.5.0
target_selection tag: 0.3.0
crossmatch plan: 0.5.0
Summary: X-ray sources from the CSC2.0 source catalog with counterparts in PanSTARRS1-DR1
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc). Select entries satisfying the following criteria: i) counterpart is from the PanSTARRS1 catalog, ii) optical flux/magnitude is in a range suited to SDSS-V bright time observations: 13.0<psfmag_i<18.0 AB .
Catalogdb tables required: bhm_csc
Target priority options: 4000
Cadence options: bhm_csc_boss_1x1
Implementation: bhm_csc.py
Number of targets: 22146
openfibertargets_nov2020_11
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Quasars observed during SDSS-I and -II which had only a single epoch to changes in emission lines and absorption line troughs over timescales of years to decades
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 39684
openfibertargets_nov2020_18
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Hard X-ray emitting sources (primarily AGNs) from XMM-Newton and Swift serendipitous surveys
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 10012
openfibertargets_nov2020_26
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Quasars monitored in SDSS-I and II as a part of ultraviolet Broad Absorption Line (BAL) Quasar Variability Survey (Gibson et al., 2009) to receive an additional epoch of observations to monitor wind evolution.
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 2105
openfibertargets_nov2020_27
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Bright quasar candidates with quasar-like Gaia and unWISE photometry, supplemented with multi-epoch variability observed by DES, excluding regions of high confusion
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 814963
openfibertargets_nov2020_30
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Bright sources in the JWST North Ecliptic Pole Time-Domain Field
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 237
openfibertargets_nov2020_33
target_selection plan: 0.5.3
target_selection tag: 0.3.4
crossmatch plan: 0.5.0
Summary: Candidate AGN, QSOs, and Blazars identified based on their ZTF variability flagged by ALeRCE light curve classifier (Sanchez-Saez et al., 2020)
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 22249
openfibertargets_nov2020_11
target_selection plan: 1.0.7
target_selection tag: 1.0.7
crossmatch plan: 1.0.0
Summary: Quasars observed during SDSS-I and -II which had only a single epoch to changes in emission lines and absorption line troughs over timescales of years to decades
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 39684
openfibertargets_nov2020_18
target_selection plan: 1.0.7
target_selection tag: 1.0.7
crossmatch plan: 1.0.0
Summary: Hard X-ray emitting sources (primarily AGNs) from XMM-Newton and Swift serendipitous surveys
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 10090
openfibertargets_nov2020_26
target_selection plan: 1.0.7
target_selection tag: 1.0.7
crossmatch plan: 1.0.0
Summary: Quasars monitored in SDSS-I and II as a part of ultraviolet Broad Absorption Line (BAL) Quasar Variability Survey (Gibson et al., 2009) to receive an additional epoch of observations to monitor wind evolution
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 2105
openfibertargets_nov2020_27
target_selection plan: 1.0.7
target_selection tag: 1.0.7
crossmatch plan: 1.0.0
Summary: Bright quasar candidates with quasar-like Gaia and unWISE photometry, supplemented with multi-epoch variability observed by DES, excluding regions of high confusion
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 814965
openfibertargets_nov2020_30
target_selection plan: 1.0.7
target_selection tag: 1.0.7
crossmatch plan: 1.0.0
Summary: Bright sources in the JWST North Ecliptic Pole Time-Domain Field
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 237
openfibertargets_nov2020_33
target_selection plan: 1.0.10
target_selection tag: 1.0.10
crossmatch plan: 1.0.0
Summary: Candidate AGN, QSOs, and Blazars identified based on their ZTF variability flagged by ALeRCE light curve classifier (Sanchez-Saez et al., 2020)
Simplified description of selection criteria: manual
Catalogdb tables required: n/a
Target priority options: 6080
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 22246
bhm_rm_core
target_selection plan: 1.0.12
target_selection tag: 1.0.12
crossmatch plan: 1.0.0
Summary: A sample of candidate QSOs selected via the methods presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via the Skew-T algorithm (skewt_qso == 1); ii) have 17<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; vi) have detections in all of the gri bands (a Gaia detection is sufficient in the CVZ-S/SEP field);and vii) do not lie in the SDSS-RM field.
Catalogdb tables required: bhm_rm_v1_1
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 3741
bhm_rm_known_spec
target_selection plan: 1.0.12
target_selection tag: 1.0.12
crossmatch plan: 1.0.0
Summary: A sample of known QSOs identified through optical spectroscopy from various projects, as collated by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select targets which satisfy all of the following: i) are flagged as having a spectroscopic identification (in the parent catalog); ii) have 15<psfmag_i<21.7 AB (SDSS-RM, CDFS, ELIAS-S1 field), 16<G<21.7 Vega (CVZ-S/SEP field), 15<psfmag_i<21.5 AB (COSMOS and XMM-LSS fields); iii) have a spectroscopic redshift in the range 0.005<z<7; iv) are not vetoed due to results of visual inspections of recent spectroscopy.
Catalogdb tables required: bhm_rm_v1_1
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 3206
bhm_rm_var
target_selection plan: 1.0.12
target_selection tag: 1.0.12
crossmatch plan: 1.0.0
Summary: A sample of candidate QSOs selected via their optical variability properties, as presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) have significant variability in the DES or PanSTARRS1 multi-epoch photometry (var_sn[g]>3 and var_rms[g]>0.05); ii) have 17<psfmag_i<20.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and vi) do not lie in the SDSS-RM field.
Catalogdb tables required: bhm_rm_v1_1
Target priority options: 1000-1100
Cadence options: dark_174x8
Implementation: bhm_rm.py
Number of targets: 871
bhm_rm_ancillary
target_selection plan: 1.0.12
target_selection tag: 1.0.12
crossmatch plan: 1.0.0
Summary: A supporting sample of candidate QSOs which have been selected by the Gaia-unWISE AGN catalog (Shu et al., 2019) and/or the SDSS XDQSO catalog (Bovy et al., 2011). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via external ancillary methods (photo_bitmask & 3 != 0); ii) have 15<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and v) do not lie in the SDSS-RM field.
Catalogdb tables required: bhm_rm_v1_1
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 1114
bhm_rm_xrayqso
target_selection plan: 1.0.12
target_selection tag: 1.0.12
crossmatch plan: 1.0.0
Summary: A small supporting sample of candidate QSOs in two of the SDSS-V Reverberation Mapping fields (CDFS, ELIAS-S1), identified via X-ray detection and SED modelling by Ni et al. (2021).
Simplified description of selection criteria: Starting from the sample of candidate QSOs identified by Ni et al. (2021), select all that satisfy the following criteria: i) are <1.5 deg from the centre of at least one RM field, ii) have optical magnitudes in the range 16.5<mag_i<21.5, iii) are not vetoed due to results of visual inspections of recent spectroscopy.
Catalogdb tables required: bhm_rm_v1_1
Target priority options: 1000-1100
Cadence options: dark_174x8
Implementation: bhm_rm.py
Number of targets: 43
bhm_csc_boss
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: X-ray sources from the CSC2.1 source catalog with counterparts in LegacySurvey DR10, Panstarrs1-DR1 or Gaia DR3.
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc_v3). Select entries satisfying the following criteria: i) optical counterpart is from the LegacySurvey DR10, PanSTARRS1 or Gaia DR3 catalogs, ii) optical flux/magnitude is in the accepted range for SDSS-V: all fibermag_[g,r,i,z] >14.5 and at least one fibermag_[g,r,i,z] <21.0 AB (objects with LegacySurvey DR10 counterparts); all psfmag_[g,r,i,z] > 14.0 and at least one psfmag_[g,r,i,z] < 22.0 AB (objects with PanSTARRS1 counterparts); 14.0 < G<20.0 Vega (Gaia DR3 counterparts). De-prioritize targets which already have good quality SDSS spectroscopy. Allocate cadence (exposure time) requests based on optical brightness (LegacySurvey fibermag_r, PS1 psfmag_i or Gaia G).
Catalogdb tables required: bhm_csc_v3, sdss_dr19p_speclite
Target priority options: 1920-1939, 2920-2939
Cadence options: bright_1x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_csc.py
Number of targets: 135154
bhm_csc_apogee
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: X-ray sources from the CSC2.1 source catalog with NIR counterparts in 2MASS PSC
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc_v2). Select entries satisfying the following criteria: i) NIR counterpart is from the 2MASS catalog, ii) 2MASS H-band magnitude measurement is not null and is within a reasonable range for SDSS-V: 7.0<H<14.0. Allocate cadence (exposure time) requests based on H-band magnitude.
Catalogdb tables required: bhm_csc_v3
Target priority options: 2930-2939
Cadence options: bright_1x1, bright_flexible_3x1
Implementation: bhm_csc.py
Number of targets: 54593
bhm_gua_dark
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: A sample of optically faint candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the magnitude range suitable for BOSS spectroscopy in dark time (G>16.5 and RP>16.5, as well as G<21.2 or RP<21.0, Vega mag), iii) do not yet have good SDSS optical spectroscopic measurements. Note that the selection criteria are based on apparent magnitudes, rather than the dereddened magnitudes that were used in an earlier iteration of this carton.
Catalogdb tables required: gaia_unwise_agn, sdss_dr19p_speclite
Target priority options: 3400
Cadence options: dark_flexible_2x2
Implementation: bhm_gua.py
Number of targets: 1936784
bhm_gua_bright
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: A sample of optically bright candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the magnitude range suitable for BOSS spectroscopy in bright time (G>13.0 and RP>13.5, as well as G<18.5 or RP<18.5, Vega mag), iii) do not yet have good SDSS optical spectroscopic measurements. Note that the selection criteria are based on apparent magnitudes, rather than the dereddened magnitudes that were used in an earlier iteration of this carton.
Catalogdb tables required: gaia_unwise_agn, sdss_dr19p_speclite
Target priority options: 4040
Cadence options: bright_flexible_2x1
Implementation: bhm_gua.py
Number of targets: 185644
bhm_spiders_clusters_lsdr10
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This is the main carton for SPIDERS galaxy cluster wide area follow up. The carton provides a catalog of galaxies which are candidate members of clusters selected from early reductions of the first 24-months of eROSITA all sky survey data (eRASS:4). The X-ray clusters have been associated by the eROSITA-DE team to legacysurvey.org/dr10 optical/IR counterparts using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Targets in this carton are located at high Galactic latitudes |b|>20 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:4 → legacysurvey.org/dr10 eROMAPPER cluster associations, select targets which meet all of the following criteria: i) have 13.5<fibertotmag_i<21.0 or 13.5<fibertotmag_z<20.5 AB, ii) if detected by Gaia DR3 then have G>13.5 and RP>13.5 Vega, and iii) do not have existing good quality SDSS spectroscopy. We assign a range of priorities to targets in this carton, with Brightest Cluster Galaxies (BCGs) top ranked, followed by candidate member galaxies according their probability of membership and whether they are within the ‘core’ 16<fibertotmag_i<20.5 or 16<fibertotmag_z<20.0 AB). We assign cadences (exposure time requests) based on optical brightness.
Catalogdb tables required: erosita_superset_v1_clusters, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1501, 1631-1634, 3501, 3631-3635
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_clusters.py
Number of targets: 440276
bhm_spiders_agn_lsdr10
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This is the highest priority carton for SPIDERS AGN wide area follow up. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 18 months of eROSITA all sky survey data (eRASS:3). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to legacysurvey.org/DR10 optical/IR counterparts (supplemented with the DR9 catalog at Dec>+32.375 deg). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Due to the LegacySurvey footprint, nearly all targets in this carton are located at high Galactic latitudes |b|>15 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:3 point source → legacysurvey.org/DR10(+DR9) associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.1, iii) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, iv) are not saturated in LegacySurvey imaging, v) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→optical/IR association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy one of 16.5<fibermag_r<22.0 or 16.5<fibermag_i<21.8 or 16.5<fibermag_z<21.0), e) the target lies at |b|<15 deg or at Dec<-75 deg, f) the X-ray flux is <2×10-14 erg s-1 cm-2. We slightly boost the priorities of targets which have hard X-ray detections. Cadence choices (exposure time requests per target) are based on optical brightness.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1520-1527, 1720-1727, 3520-3527, 3720-3727
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_agn.py
Number of targets: 975978
bhm_spiders_agn_hard
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This small supplementary carton provides a sample of point-like (unresolved) hard-band (2.3-5 keV) X-ray sources detected in the first 6 months of eROSITA all sky survey data (eRASS:1). The selection of the eROSITA hard band sample is described by Waddell et al. (2026). The X-ray sources have been cross-matched by the eROSITA-DE team to LegacySurvey DR10 optical/IR counterparts. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg).
Simplified description of selection criteria: Starting from a parent catalog of multi-band eRASS:1 X-ray point source → LegacySurvey DR10 associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA 2.3-5keV band detection likelihood>12.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.01, iii) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, iv) are not saturated in LegacySurvey imaging, v) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the target is a secondary X-ray→optical/IR association, c) the target falls outside the core magnitude range (i.e. doesn’t satisfy one of 16.5<fibermag_r<22.0 or 16.5<fibermag_i<21.8 or 16.5<fibermag_z<21.0), d) the target lies at |b|<10 deg or at Dec<-75 deg. Cadence choices (exposure time requests per target) are based on optical brightness.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1510-1512, 1710, 3510-3512, 3710
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_agn.py
Number of targets: 2603
bhm_spiders_agn_gaiadr3
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This is the second highest priority carton for SPIDERS AGN wide area follow up, it is included to expand the survey footprint beyond the LegacySurvey footprint. This carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 18 months of eROSITA all sky survey data (eRASS:3). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to Gaia DR3 optical counterparts. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). The targets in this carton are distributed over a wide range of Galactic latitudes, but targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:3 point source → Gaia DR3 associations (method: NWAY assisted by Gaia photometric+astrometric priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→Gaia cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→Gaia association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy 16.0<G<21.0), e) the target lies at |b|<15 deg or at Dec<-75 deg, f) the X-ray flux is <2×10-14 erg s-1 cm-2. We slightly boost the priorities of targets which have hard X-ray detections. Cadence choices (exposure time requests per target) are based on optical brightness.
Catalogdb tables required: erosita_superset_v1_agn, gaia_dr3_source, sdss_dr19p_speclite
Target priority options: 1540-1547, 1740-1747, 3540-3547, 3740-3747
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_agn.py
Number of targets: 717805
bhm_spiders_agn_tda
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This is a small supplementary carton of transient/variable X-ray sources selected by comparing X-ray measurements between several independent 6-month eROSITA sky surveys. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg).
Simplified description of selection criteria: We start from a parent catalog of transient/variable X-ray sources selected from the first three eROSITA All Sky surveys. These X-ray sources have been associated with LegacySurvey DR10 optical counterparts (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022). We then select targets which meet all of the following criteria: i) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, ii) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. Cadence choices (exposure time requests per target) are based on optical brightness.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10
Target priority options: 1690
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_agn.py
Number of targets: 9627
bhm_spiders_agn_sep
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: This is a small supplementary catalog of eROSITA point-like (unresolved) X-ray sources detected in the Continous Viewing Zone South/South Ecliptic Pole (CVZ-S/SEP) field. Owing to the deepest exposure of the eROSITA All-Sky Survey (eRASS) in this region, the CVZ-S/SEP field suffers from severe source confusion, requiring a specialized source-detection procedure (Liu et al., in prep.). The X-ray catalog used here was derived from an early data reduction of 0.2-2.3 keV band data from the 2.3-year eRASS:5 dataset, covering an approximately 6 deg x 6 deg sky region centered on the CVZ-S/SEP. The X-ray sources have been cross-matched by the eROSITA-DE team with Gaia DR3.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:5 point source → Gaia DR3 associations from teh SEP/CVZ-S region, select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→Gaia cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→Gaia association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy 16.0<G<21.5), e) the X-ray flux is <1×10-14 erg s-1 cm-2. Cadence choices (exposure time requests per target) are based on optical brightness.
Catalogdb tables required: erosita_superset_v1_agn, gaia_dr3_source, sdss_dr19p_speclite
Target priority options: 1501-1503, 3501-3507
Cadence options: bright_flexible_2x1, dark_flexible_2x1, dark_flexible_2x2
Implementation: bhm_spiders_agn.py
Number of targets: 1681
bhm_aqmes_med
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1100
Cadence options: dark_10x4_4yr
Implementation: bhm_aqmes.py
Number of targets: 2663
bhm_aqmes_med_faint
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 36 mostly disjoint fields within the SDSS QSO footprint that were pre-selected to contain higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, that lie within 1.49 degrees of at least one AQMES-medium field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3100
Cadence options: dark_10x4_4yr
Implementation: bhm_aqmes.py
Number of targets: 16853
bhm_aqmes_wide2
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository. The targets in this carton request two epochs of SDSS-V spectroscopy.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1210
Cadence options: dark_2x4
Implementation: bhm_aqmes.py
Number of targets: 24142
bhm_aqmes_wide2_faint
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository. The targets in this carton request two epochs of SDSS-V spectroscopy.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3210
Cadence options: dark_2x4
Implementation: bhm_aqmes.py
Number of targets: 99586
bhm_aqmes_bonus_core
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3300
Cadence options: dark_flexible_2x2
Implementation: bhm_aqmes.py
Number of targets: 83163
bhm_aqmes_bonus_bright
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed, extremely optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 14.0<sdss_psfmag_i<18.0 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 4040
Cadence options: bright_flexible_2x1
Implementation: bhm_aqmes.py
Number of targets: 10848
bhm_aqmes_bonus_faint
target_selection plan: 1.0.37
target_selection tag: 1.0.37
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located anywhere within the SDSS DR16Q footprint.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3302
Cadence options: dark_flexible_2x2
Implementation: bhm_aqmes.py
Number of targets: 424163
bhm_colr_galaxies_lsdr10
target_selection plan: 1.0.38
target_selection tag: 1.0.38
crossmatch plan: 1.0.0
Summary: A supplementary magnitude limited sample of optically bright galaxies selected from the LegacySurvey DR10 optical/IR imaging catalog (supplemented with the LegacySurvey DR9 catalog at Dec>+32.375 deg). Selection is based on optical morphology, lack of Gaia parallax, and several magnitude cuts.
Simplified description of selection criteria: Starting from the legacy_survey_dr10 catalog (lsdr10), select entries satisfying all of the following criteria: i) lsdr10 morphological type != ‘PSF’, ii) lsdr10 shape_r>1.0 arcsec, iii) no detection of parallax by Gaia, iv) dereddened z-band model mag<19.0 AB, and dereddened z-band fiber mag<19.5 AB, v) within all the following apparent fiber mag limits: 16<g<22.5 and 16<r<21.5 and 16<z<20.0 AB, vi) if detected in Gaia, then G>15.0 and RP>15.0 Vega, vii) at moderate to high Galactic latitude |b|>15 deg.
Catalogdb tables required: legacy_survey_dr10
Target priority options: 7100
Cadence options: bright_1x1, dark_1x1, dark_flexible_2x2
Implementation: bhm_galaxies.py
Number of targets: 6246703
openfibertargets_bhm_racsradio_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Optically bright counterparts to bright 888 MHz radio sources identified by in the ASKAP/RACS-low survey (Hale et al., 2021).
Simplified description of selection criteria: Subset of radio sources from the RACS-low ASKAP survey (entire sky region between declination -80 deg and +30 deg), with radio (888 MHz) flux exceeding 3 mJy and optical counterparts (with 14.5<r<20.5) identified in the footprints of LegacySurvey DR10-South using NWAY (adopting separation, positional errors, number density and a prior based on various features).
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 149989
openfibertargets_bhm_varagn_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Optical variability selected AGN candidates. We have used custom made forced photometry in ZTF difference images to build accurate light curves of complicated objects such as low redshift AGN, where the variable AGN point source is contaminated by the host galaxy in a PSF dependent way. With these light curves and complementary color information we built a random forest algorithm to classify all objects, obtaining 350k AGN candidates, some of which fall outside the usual locus of AGN in color-color diagrams.
Simplified description of selection criteria: All ZTF forced-photometry based AGN candidates that are not included in the Gaia-unWISE color-selected AGN candidate catalog of Shu et al. (2019) and that: a) have -30<Dec<15 and |b|>20 deg, have zero proper motion according to Gaia (at 2 sigma), are not in the labeled set of well-characterized objects used in Sanchez-Saez et al. (2023), and are classified as either low-z AGN, mid-z AGN or Blazar by our classifier. For candidates classified as high-z AGN the same limits apply except that in this case |b|>30 deg and the Gaia proper motion must be within 1 sigma of zero.
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 6966
openfibertargets_bhm_morexray_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Counterparts of X-ray sources identified by Swift-XRT and XMM-Newton
Simplified description of selection criteria: Select sources from ExSeSS (Swift, Delaney et al., 2023) and 4XMM-DR13 (Webb et al., 2020), in any X-ray band. Cross-match to LegacySurvey DR10 counterparts (using NWAY informed by WISE W1-W2 colors, with p_any>0.3), and then apply magnitude cuts (14.5<r<20 AB for bright time and 20<r<21 AB for dark time)
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1, dark_1x1
Implementation: n/a
Number of targets: 103105
openfibertargets_bhm_hightderates_psb_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Galaxies that have been photometrically identified as or post-starburst (E+A). Such galaxies are known to have an elevated rate of tidal disruption events of stars by their supermassive black holes.
Simplified description of selection criteria: All or post-starburst galaxies identified by the machine learning algorithm in French & Zabludoff (2018)
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 8934
openfibertargets_bhm_hightderates_qbs_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Galaxies that have been photometrically identified as quiescent Balmer-strong (QBS). Such galaxies are known to have an elevated rate of tidal disruption events of stars by their supermassive black holes.
Simplified description of selection criteria: All quiescent Balmer-strong galaxies identified by the machine learning algorithm in French & Zabludoff (2018)
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: dark_1x1
Implementation: n/a
Number of targets: 29659
openfibertargets_bhm_quaia_boss
target_selection plan: 1.2.0
target_selection tag: 1.2.7
crossmatch plan: 1.0.0
Summary: Quasar candidates from the Quaia Catalog (Storey-Fisher et al., 2024) that have not previously been spectroscopically observed by any generation of SDSS
Simplified description of selection criteria: All Quaia G<20.5 quasars not previously spectroscopically observed by SDSS
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1
Implementation: n/a
Number of targets: 999906
openfibertargets_bhm_lofarradio_boss
target_selection plan: 1.2.1
target_selection tag: 1.3.0
crossmatch plan: 1.0.0
Summary: Optically bright counterparts of low-frequency radio sources identified by LOFAR Two Metre Sky Survey (LOTSS DR2, Hardcastle et al., 2023)
Simplified description of selection criteria: Extract LOFAR radio detected sources from the LOTSS survey with published matches to LegacySurvey DR8 counterparts (Hardcastle et al., 2023). Apply a radio flux cut (Total flux>2 mJy), and apply magnitude limits (14.5<r<20.0)
Catalogdb tables required: n/a
Target priority options: 6085
Cadence options: bright_1x1
Implementation: n/a
Number of targets: 210483
bhm_csc_boss_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: X-ray sources from the CSC2.1 source catalog with counterparts in LegacySurvey DR10, Panstarrs1-DR1 or Gaia DR3.
Simplified description of selection criteria: Starting from the parent catalog of CSC sources with optical/IR counterparts (bhm_csc_v3). Select entries satisfying the following criteria: i) optical counterpart is from the LegacySurvey DR10, PanSTARRS1 or Gaia DR3 catalogs, ii) optical flux/magnitude is in the accepted range for SDSS-V: all fibermag_[g,r,i,z] >14.5 and at least one fibermag_[g,r,i,z] <21.0 AB (objects with LegacySurvey DR10 counterparts); all psfmag_[g,r,i,z] > 14.0 and at least one psfmag_[g,r,i,z] < 22.0 AB (objects with PanSTARRS1 counterparts); 14.0 < G<20.0 Vega (Gaia DR3 counterparts). De-prioritize targets which already have good quality SDSS spectroscopy. The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: bhm_csc_v3, sdss_dr19p_speclite
Target priority options: 1921-1930
Cadence options: dark_flexible_3x1
Implementation: bhm_csc.py
Number of targets: 97267
bhm_spiders_clusters_lsdr10_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This is the main carton for SPIDERS galaxy cluster wide area follow up. The carton provides a catalog of galaxies which are candidate members of clusters selected from early reductions of the first 24-months of eROSITA all sky survey data (eRASS:4). The X-ray clusters have been associated by the eROSITA-DE team to legacysurvey.org/dr10 optical/IR counterparts using the eROMAPPER red-sequence finder algorithm (Rykoff et al., 2014; Ider Chitham et al., 2020). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Targets in this carton are located at high Galactic latitudes |b|>20 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:4 → legacysurvey.org/dr10 eROMAPPER cluster associations, select targets which meet all of the following criteria: i) have 13.5<fibertotmag_i<21.0 or 13.5<fibertotmag_z<20.5 AB, ii) if detected by Gaia DR3 then have G>13.5 and RP>13.5 Vega, and iii) do not have existing good quality SDSS spectroscopy. We assign a range of priorities to targets in this carton, with Brightest Cluster Galaxies (BCGs) top ranked, followed by candidate member galaxies according their probability of membership and whether they are within the ‘core’ 16<fibertotmag_i<20.5 or 16<fibertotmag_z<20.0 AB). The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: erosita_superset_v1_clusters, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1502, 1632-1635, 3502, 3632-3636
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_clusters.py
Number of targets: 427445
bhm_spiders_agn_gaiadr3_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This is the second highest priority carton for SPIDERS AGN wide area follow up, it is included to expand the survey footprint beyond the LegacySurvey footprint. This carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 18 months of eROSITA all sky survey data (eRASS:3). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to Gaia DR3 optical counterparts. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). The targets in this carton are distributed over a wide range of Galactic latitudes, but targets at low Galactic latitudes |b|<15 deg do not drive survey strategy.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:3 point source → Gaia DR3 associations (method: NWAY assisted by Gaia photometric+astrometric priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→Gaia cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→Gaia association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy 16.0<G<21.0), e) the target lies at |b|<15 deg or at Dec<-75 deg, f) the X-ray flux is <2×10-14 erg s-1 cm-2. We slightly boost the priorities of targets which have hard X-ray detections. The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: erosita_superset_v1_agn, gaia_dr3_source, sdss_dr19p_speclite
Target priority options: 1541-1548, 3541-3548
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_agn.py
Number of targets: 398493
bhm_spiders_agn_sep_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This is a small supplementary catalog of eROSITA point-like (unresolved) X-ray sources detected in the Continous Viewing Zone South/South Ecliptic Pole (CVZ-S/SEP) field. Owing to the deepest exposure of the eROSITA All-Sky Survey (eRASS) in this region, the CVZ-S/SEP field suffers from severe source confusion, requiring a specialized source-detection procedure (Liu et al., in prep.). The X-ray catalog used here was derived from an early data reduction of 0.2-2.3 keV band data from the 2.3-year eRASS:5 dataset, covering an approximately 6 deg x 6 deg sky region centered on the CVZ-S/SEP. The X-ray sources have been cross-matched by the eROSITA-DE team with Gaia DR3.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:5 point source → Gaia DR3 associations from teh SEP/CVZ-S region, select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray→Gaia cross-match probability of p_any>0.1, iii) have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→Gaia association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy 16.0<G<21.5), e) the X-ray flux is <1×10-14 erg s-1 cm-2. Cadence choices (exposure time requests per target) are based on optical brightness. The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: erosita_superset_v1_agn, gaia_dr3_source, sdss_dr19p_speclite
Target priority options: 1502-1504, 3502-3508
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_agn.py
Number of targets: 863
bhm_aqmes_wide1
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically bright SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository. The targets in this carton request a single epoch of SDSS-V spectroscopy.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 16.0<sdss_psfmag_i<19.1 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 1211
Cadence options: dark_1x4
Implementation: bhm_aqmes.py
Number of targets: 24142
bhm_aqmes_wide1_faint
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: Spectroscopically confirmed optically faint SDSS QSOs, selected from the SDSS QSO catalog (DR16Q, Lyke et al., 2020). Located in 425 fields within the SDSS QSO footprint, where the choice of survey area prioritized field that overlapped with the SPIDERS footprint (approx 180<b<360 deg), and/or had higher than average numbers of bright QSOs and CSC targets. The list of field centres can be found within the target_selection repository. The targets in this carton request a single epoch of SDSS-V spectroscopy.
Simplified description of selection criteria: Select all objects from SDSS DR16 QSO catalog that have 19.1<sdss_psfmag_i<21.0 AB, and that lie within 1.49 degrees of at least one AQMES-wide field location.
Catalogdb tables required: sdss_dr16_qso, sdss_dr16_specobj
Target priority options: 3211
Cadence options: dark_1x4
Implementation: bhm_aqmes.py
Number of targets: 99586
bhm_gua_dark_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: A sample of optically faint candidate AGN lacking spectroscopic confirmations, derived from the parent sample presented by Shu et al. (2019), who applied a machine-learning approach to select QSO candidates from a combination of the Gaia DR2 and unWISE catalogs.
Simplified description of selection criteria: Starting with the Shu et al. (2019) catalog, select targets which satisfy the following criteria: i) have a Random Forest probability of being a QSO of>0.8, ii) are in the magnitude range suitable for BOSS spectroscopy in dark time (G>16.5 and RP>16.5, as well as G<21.2 or RP<21.0, Vega mag), iii) do not yet have good SDSS optical spectroscopic measurements. Note that the selection criteria are based on apparent magnitudes, rather than the dereddened magnitudes that were used in an earlier iteration of this carton. The ‘_d3’ variation of this carton provides a shallower cadence option for targets in this sample.
Catalogdb tables required: gaia_unwise_agn, sdss_dr19p_speclite
Target priority options: 3401
Cadence options: dark_flexible_3x1
Implementation: bhm_gua.py
Number of targets: 1936784
bhm_spiders_agn_hard_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This small supplementary carton provides a sample of point-like (unresolved) hard-band (2.3-5 keV) X-ray sources detected in the first 6 months of eROSITA all sky survey data (eRASS:1). The selection of the eROSITA hard band sample is described by Waddell et al. (2026). The X-ray sources have been cross-matched by the eROSITA-DE team to LegacySurvey DR10 optical/IR counterparts. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg).
Simplified description of selection criteria: Starting from a parent catalog of multi-band eRASS:1 X-ray point source → LegacySurvey DR10 associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA 2.3-5keV band detection likelihood>12.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.01, iii) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, iv) are not saturated in LegacySurvey imaging, v) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the target is a secondary X-ray→optical/IR association, c) the target falls outside the core magnitude range (i.e. doesn’t satisfy one of 16.5<fibermag_r<22.0 or 16.5<fibermag_i<21.8 or 16.5<fibermag_z<21.0), d) the target lies at |b|<10 deg or at Dec<-75 deg. Cadence choices (exposure time requests per target) are based on optical brightness. The ‘_d3’ variation of this carton provides a shallower cadence option for targets in this sample.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1511-1513, 1711, 3511-3513, 3711
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_agn.py
Number of targets: 798
bhm_spiders_agn_tda_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This is a small supplementary carton of transient/variable X-ray sources selected by comparing X-ray measurements between several independent 6-month eROSITA sky surveys. All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg).
Simplified description of selection criteria: We start from a parent catalog of transient/variable X-ray sources selected from the first three eROSITA All Sky surveys. These X-ray sources have been associated with LegacySurvey DR10 optical counterparts (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022). We then select targets which meet all of the following criteria: i) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, ii) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. Cadence choices (exposure time requests per target) are based on optical brightness. The ‘_d3’ variation of this carton provides a shallower cadence option for targets in this sample.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10
Target priority options: 1691
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_agn.py
Number of targets: 8141
bhm_spiders_agn_lsdr10_d3
target_selection plan: 1.2.4
target_selection tag: 1.3.3
crossmatch plan: 1.0.0
Summary: This is the highest priority carton for SPIDERS AGN wide area follow up. The carton provides optical counterparts to point-like (unresolved) X-ray sources detected in early reductions of the first 18 months of eROSITA all sky survey data (eRASS:3). The sample is expected to contain a mixture of QSOs, AGN, stars and compact objects. The X-ray sources have been cross-matched by the eROSITA-DE team to legacysurvey.org/DR10 optical/IR counterparts (supplemented with the DR9 catalog at Dec>+32.375 deg). All targets are located in the sky hemisphere where MPE controls the data rights (approx. 180<l<360 deg). Due to the LegacySurvey footprint, nearly all targets in this carton are located at high Galactic latitudes |b|>15 deg.
Simplified description of selection criteria: Starting from a parent catalog of eRASS:3 point source → legacysurvey.org/DR10(+DR9) associations (method: NWAY assisted by optical/IR priors computed via a pre-trained Random Forest, building on Salvato et al., 2022), select targets which meet all of the following criteria: i) have eROSITA detection likelihood>6.0, ii) have an X-ray → optical/IR cross-match probability (NWAY) of p_any>0.1, iii) have 13.5<fibermag_r<22.5 or 13.5<fibermag_i<22.3 or 13.5<fibermag_z<21.5, iv) are not saturated in LegacySurvey imaging, v) if detected by Gaia DR2/DR3 then have G>13.5 and RP>13.5 Vega. We deprioritise targets if any of the following criteria are met: a) the target already has existing good quality SDSS spectroscopy, b) the X-ray detection likelihood is <8.0, c) the target is a secondary X-ray→optical/IR association, d) the target falls outside the core magnitude range (i.e. doesn’t satisfy one of 16.5<fibermag_r<22.0 or 16.5<fibermag_i<21.8 or 16.5<fibermag_z<21.0), e) the target lies at |b|<15 deg or at Dec<-75 deg, f) the X-ray flux is <2×10-14 erg s-1 cm-2. We slightly boost the priorities of targets which have hard X-ray detections. The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: erosita_superset_v1_agn, legacy_survey_dr10, sdss_dr19p_speclite
Target priority options: 1521-1528, 1721-1728, 3521-3528, 3721-3728
Cadence options: dark_flexible_3x1
Implementation: bhm_spiders_agn.py
Number of targets: 851160
bhm_colr_galaxies_lsdr10_d3
target_selection plan: 1.2.16
target_selection tag: 1.3.15
crossmatch plan: 1.0.0
Summary: A supplementary magnitude limited sample of optically bright galaxies selected from the LegacySurvey DR10 optical/IR imaging catalog (supplemented with the LegacySurvey DR9 catalog at Dec>+32.375 deg). Selection is based on optical morphology, lack of Gaia parallax, and several magnitude cuts.
Simplified description of selection criteria: Starting from the legacy_survey_dr10 catalog (lsdr10), select entries satisfying all of the following criteria: i) lsdr10 morphological type != ‘PSF’, ii) lsdr10 shape_r>1.0 arcsec, iii) no detection of parallax by Gaia, iv) dereddened z-band model mag<19.0 AB, and dereddened z-band fiber mag<19.5 AB, v) within all the following apparent fiber mag limits: 16<g<22.5 and 16<r<21.5 and 16<z<20.0 AB, vi) if detected in Gaia, then G>15.0 and RP>15.0 Vega, vii) at moderate to high Galactic latitude |b|>15 deg. The ‘_d3’ variation of this carton provides a shallower cadence option for targets toward the optically faint end of the sample.
Catalogdb tables required: legacy_survey_dr10
Target priority options: 7101
Cadence options: dark_flexible_3x1
Implementation: bhm_galaxies.py
Number of targets: 6091854
bhm_rm_core
target_selection plan: 1.0.48
target_selection tag: 1.0.48
crossmatch plan: 1.0.0
Summary: A sample of candidate QSOs selected via the methods presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via the Skew-T algorithm (skewt_qso == 1); ii) have 17<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; vi) have detections in all of the gri bands (a Gaia detection is sufficient in the CVZ-S/SEP field);and vii) do not lie in the SDSS-RM field. This carton version starts with an updated parent catalog, and fixes an issue which could have caused a few targets to be unintentionally excluded.
Catalogdb tables required: bhm_rm_v1_3
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 3757
bhm_rm_known_spec
target_selection plan: 1.0.48
target_selection tag: 1.0.48
crossmatch plan: 1.0.0
Summary: A sample of known QSOs identified through optical spectroscopy from various projects, as collated by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select targets which satisfy all of the following: i) are flagged as having a spectroscopic identification (in the parent catalog); ii) have 15<psfmag_i<21.7 AB (SDSS-RM, CDFS, ELIAS-S1 field), 16<G<21.7 Vega (CVZ-S/SEP field), 15<psfmag_i<21.5 AB (COSMOS and XMM-LSS fields); iii) have a spectroscopic redshift in the range 0.005<z<7; iv) are not vetoed due to results of visual inspections of recent spectroscopy. This carton version starts with an updated parent catalog, and fixes an issue which could have caused a few targets to be unintentionally excluded.
Catalogdb tables required: bhm_rm_v1_3
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 3212
bhm_rm_var
target_selection plan: 1.0.48
target_selection tag: 1.0.48
crossmatch plan: 1.0.0
Summary: A sample of candidate QSOs selected via their optical variability properties, as presented by Yang and Shen (2022). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) have significant variability in the DES or PanSTARRS1 multi-epoch photometry (var_sn[g]>3 and var_rms[g]>0.05); ii) have 17<psfmag_i<20.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and vi) do not lie in the SDSS-RM field. This carton version starts with an updated parent catalog, and fixes an issue which could have caused a few targets to be unintentionally excluded.
Catalogdb tables required: bhm_rm_v1_3
Target priority options: 1000-1100
Cadence options: dark_174x8
Implementation: bhm_rm.py
Number of targets: 871
bhm_rm_ancillary
target_selection plan: 1.0.48
target_selection tag: 1.0.48
crossmatch plan: 1.0.0
Summary: A supporting sample of candidate QSOs which have been selected by the Gaia-unWISE AGN catalog (Shu et al., 2019) and/or the SDSS XDQSO catalog (Bovy et al., 2011). These targets are located within five (+1 backup) well known survey fields (SDSS-RM, COSMOS, XMM-LSS, ECDFS, CVZ-S/SEP, and ELIAS-S1).
Simplified description of selection criteria: Starting from a parent catalog of optically selected objects in the RM fields (as presented by Yang and Shen, 2022), select candidate QSOs that satisfy all of the following: i) are identified via external ancillary methods (photo_bitmask & 3 != 0); ii) have 15<psfmag_i<21.5 AB (16<G<21.7 AB in the CVZ-S/SEP field); iii) do not have significant detections (>3σ) of parallax and/or proper motion in Gaia DR2; iv) are not vetoed due to results of visual inspections of recent spectroscopy; and v) do not lie in the SDSS-RM field. This carton version starts with an updated parent catalog, and fixes an issue which could have caused a few targets to be unintentionally excluded.
Catalogdb tables required: bhm_rm_v1_3
Target priority options: 1000-1100
Cadence options: dark_100x8, dark_174x8
Implementation: bhm_rm.py
Number of targets: 1114
manual_bhm_spiders_comm_lco
target_selection plan: 0.5.23
target_selection tag: 0.3.22
crossmatch plan: 0.5.0
Summary: A utility sample of X-ray selected targets located in the XMM-XXL-N and Stripe-82X fields having reliable spectroscopic redshifts. This carton was designed to support SDSS-V commissioning (of FPS at LCO), as a reference sample to test the accuracy and completeness of pipeline-derived redshifts extracted from new SDSS-V spectroscopic data.
Simplified description of selection criteria: Starting from a compilation of X-ray selected sources in the XMM-XXL-N and Stripe-82X fields with optical counterparts in the LegacySurvey DR8 catalog, select those having i) reliable spectroscopic redshifts (confirmed visually) from previous SDSS observations, and ii) which lie in the magnitude range 16<mag_r<23.0 AB.
Catalogdb tables required: n/a
Target priority options: 1000
Cadence options: dark_1x4
Implementation: n/a
Number of targets: 3160