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arXiv · 1708.00155

Target Selection for the SDSS-IV APOGEE-2 Survey

G. Zasowski·R. E. Cohen·S. D. Chojnowski·F. Santana·R. J. Oelkers·B. Andrews·R. L. Beaton·C. Bender·J. C. Bird·J. Bovy·J. K. Carlberg·K. Covey·K. Cunha·F. Dell'Agli·S. W. Fleming·P. M. Frinchaboy·D. A. Garcia-Hernandez·P. Harding·J. Holtzman·J. A. Johnson·J. A. Kollmeier·S. R. Majewski·Sz. Meszaros·J. Munn·R. R. Munoz·M. K. Ness·D. L. Nidever·R. Poleski·C. Roman Zuniga·M. Shetrone·J. D. Simon·V. V. Smith·J. S. Sobeck·G. S. Stringfellow·L. Szigetiaros·J. Tayar·N. Troup
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Abstract

APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing roughly 300,000 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 upon 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 (RGB) and red clump (RC) 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.

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G. Zasowski, R. E. Cohen, S. D. Chojnowski, F. Santana, R. J. Oelkers, B. Andrews, R. L. Beaton, C. Bender, J. C. Bird, J. Bovy, J. K. Carlberg, K. Covey, K. Cunha, F. Dell'Agli, S. W. Fleming, P. M. Frinchaboy, D. A. Garcia-Hernandez, P. Harding, J. Holtzman, J. A. Johnson, J. A. Kollmeier, S. R. Majewski, Sz. Meszaros, J. Munn, R. R. Munoz, M. K. Ness, D. L. Nidever, R. Poleski, C. Roman Zuniga, M. Shetrone, J. D. Simon, V. V. Smith, J. S. Sobeck, G. S. Stringfellow, L. Szigetiaros, J. Tayar, N. Troup. 2017-08-01. Target Selection for the SDSS-IV APOGEE-2 Survey. https://doi.org/10.3847/1538-3881/aa8df9

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