Value Added Catalogs

In addition to the primary SDSS photometry and spectroscopy, there are a few extra catalogs created by our collaborators that are distributed through the SAS. These Value-Added Catalogs (VACs) are listed below, and include catalogs that were released in earlier data releases.

BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)

Alternative Pipeline Catalog

Supplemental Catalog of Neutron Capture and other weak-lined Element Abundances for APOGEE DR17, derived with BACCHUS

Thomas Masseron, Christian Hayes, Jon Holtzman, Jennifer Sobeck, Anibal Garcia Hernandez, Katia Cunha, Verne Smith, Sten Hasselquist


This catalog contains elemental abundances of neutron capture and other weak-lined species (Na, P, S, V, Cu, Ce, and Nd), as well as C12/C13 isotopic ratios, for a subset ~120,000 stars in the APOGEE DR17 giant sample with high signal-to-noise spectra. Transitions that arise from low absolute abundance elements, such as the neutron capture elements, in the H-band wavelength regime generally require a boutique analysis in order to measure abundances precisely. We used the BACCHUS (Brussels Automatic Code for Characterizing High accUracy Spectra; Masseron et al. 2016) code and APOGEE DR17 calibrated stellar atmospheric parameters for the derivation of these abundance data. More details on the content of this VAC can be found in Hayes et al. (2022).

Catalog last modified: 2022-12-01 09:54:35

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