Target Selection for the SDSS-IV APOGEE-2 Survey
Abstract
APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing ∼3 × 105 stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digital Sky Survey IV (SDSS-IV). APOGEE-2 is expanding on APOGEE's goals of addressing critical questions of stellar astrophysics, stellar populations, and Galactic chemodynamical evolution using (1) an enhanced set of target types and (2) a second spectrograph at Las Campanas Observatory in Chile. APOGEE-2 is targeting red giant branch and red clump stars, RR Lyrae, low-mass dwarf stars, young stellar objects, and numerous other Milky Way and Local Group sources across the entire sky from both hemispheres. In this paper, we describe the APOGEE-2 observational design, target selection catalogs and algorithms, and the targeting-related documentation included in the SDSS data releases.
- Publication:
-
The Astronomical Journal
- Pub Date:
- November 2017
- DOI:
- 10.3847/1538-3881/aa8df9
- arXiv:
- arXiv:1708.00155
- Bibcode:
- 2017AJ....154..198Z
- Keywords:
-
- surveys;
- Galaxy: stellar content;
- Galaxy: evolution;
- stars: general;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 19 pages, 6 figures. Accepted to AJ