VizieR Online Data Catalog: APOGEE DR14:Binary companions of evolved stars (Price-Whelan+, 2018)
Abstract
All data used in this work come from the publicly available data release 14 (DR14) of the APOGEE survey (Abolfathi et al. 2018ApJS..235...42A; Majewski et al. 2017AJ....154...94M), a component of the Sloan Digital Sky Survey IV (SDSS-IV; Gunn et al. 2006AJ....131.2332G; Blanton et al. 2017AJ....154...28B). APOGEE is designed to map stars across much of the Milky Way by obtaining high-resolution (R~22500) infrared (H-band) spectroscopy of primarily RGB stars. Targets are selected with simple color and brightness cuts, but the survey uses fiber-plugged plates with a maximum of 300 fibers per~1.5 deg2 field of view, leading to "pencil-beam"-like sampling of the Galactic stellar distribution. In order to meet requirements on signal-to-noise ratio, most APOGEE stars are observed multiple times in a series of "visits", typically with at least one visit separated from others by a month or more in order to help identify binary stars. We use the primary data products from APOGEE DR14 (i.e., the allStar and allVisit files), which contain 258475 unique source IDs (APOGEE_ID) and 1054381 unique visits. We select all stars with >=3 visits that each pass a set of quality cuts. After these cuts, and the requirement of >=3 visits for a given star, we are left with 397559 visits for 96231 unique sources.
(8 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- January 2019
- DOI:
- 10.26093/cds/vizier.51560018
- Bibcode:
- 2019yCat..51560018P
- Keywords:
-
- Stars: double and multiple;
- Stars: giant;
- Radial velocities;
- Stars: masses;
- Stars: diameters;
- Effective temperatures;
- Abundances;
- Photometry: infrared;
- Proper motions;
- Surveys