SPectroscopic IDentfication of ERosita Sources Summary The SDSS-V/BHM SPectroscopic IDentfication of ERosita Sources (SPIDERS) project aims to characterize a large sample of X-ray sources through an ambitious program of optical spectroscopic follow up. SPIDERS has two main science themes – the follow up of X-ray point-like sources (‘SPIDERS-AGN’), and the follow up of X-ray/optical cluster […]
Search Results for: SDSS-IV
DR19 BHM Targeting Cartons
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 DR19 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 […]
DR19 BHM Science Programs
The two main pillars of the Black Hole Mapper project are: i) time domain studies of quasars, and ii) large scale spectroscopic follow up of X-ray selected sources. This core is complemented by a small number of supplementary BHM programs, which increase the scientific grasp of the project. BHM Time-Domain Programs The BHM optical (BOSS) […]
DR19 MWM Targeting Cartons
This page is a comprehensive list of cartons available up through data release 19. Each carton is associated with a well defined targeting generation. These generations were used at different points in the survey for plate designs or Robostrategy designs for the FPS. For a full description of the targeting generations see the List of […]
DR19 BOSS Pipeline
The SDSS Early Data Release (EDR) paper is the original resource for understanding the processing and data products from the SDSS, describing the pipelines and spectroscopic data products. Successive data release papers: DR1, DR2, DR3, DR4, DR5, DR6, DR7, DR8, DR9, DR10, DR11, DR12, DR13, DR14, DR15, DR16, DR17, and DR18 describe changes to the optical spectroscopic data reduction […]
DR19 Data Access
Data Products DR19 contains a wealth of new BOSS optical and APOGEE NIR spectroscopic data. These data were obtained as part of an initial SDSS-V season of plate operations on the 2.5m SDSS telescope at the Apache Point Observatory (APO), as well as early FPS data collected at APO up to July 2023. Note that […]
DR19 BHM Data
Previous SDSS data most relevant to BHM Please also see earlier SDSS data releases, including DR16, DR17, and DR18 which e.g., include BHM relevant science and data, from other earlier SDSS programs and releases: New data for BHM in DR19 BOSS spectra SDSS DR19 includes the release of a total of ~380,000 BOSS spectra for […]
Fabry-Perot Interferometer
The APOGEE instrument has long been used for studying radial velocities (RV)s in stellar targets. Through SDSS-IV the standard quoted RV stability floor was approximately 100 m/s. In SDSS-V, there have been three hardware upgrades to improve and monitor RV stability of the APOGEE instrument. The first is the introduction of octagonal fibers into the […]
DR18 BHM Caveats
Optical Spectra Caveats As with any dataset, there are several caveats to watch out for when using the optical spectra released by SDSS. Some affect only a few spectra or a few data columns, while some others have wider impacts. Caveats are in many cases specific to the release and will be corrected in an […]
DR18 BHM Targeting Cartons
Scope This page provides a complete list of all BHM-led target cartons that have been considered within SDSS-V, up to and including the DR18 data release. The cartons are grouped by a ‘targeting generation’ identifier. List of targeting generations The table below provides a list of all distinct targeting generations presented in this data release. […]