Target Selection for the SDSS-IV APOGEE-2 Survey

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.

19 pages, 6 figures. Accepted to AJ

References in corpus (25)

• The Gaia mission
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• The K2 Mission: Characterization and Early results
• The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. IX. The Atlas of Multiple Stellar Populations
• The APOKASC Catalog: An Asteroseismic and Spectroscopic Joint Survey of Targets in the Kepler Fields
• Trumpeting M Dwarfs with CONCH-SHELL: a Catalog of Nearby Cool Host-Stars for Habitable ExopLanets and Life
• Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity
• Rings and Radial Waves in the Disk of the Milky Way
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• The GALAH Survey: Observational Overview and Gaia DR1 companion
• UCAC5: New Proper Motions using Gaia DR1
• New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE survey
• Stellar parameters and chemical abundances of 223 evolved stars with and without planets
• Tracing Sagittarius Structure with SDSS and SEGUE Imaging and Spectroscopy
• APOGEE Chemical Abundances of Globular Cluster Giants in the Inner Galaxy
• The metallicity spread and the age-metallicity relation of Omega Centauri
• The chemical compositions of solar twins in the open cluster M67
• IN-SYNC I: Homogeneous Stellar Parameters from High Resolution APOGEE Spectra for Thousands of Pre-main Sequence Star
• Galactic halo stellar structures in the Triangulum-Andromeda region
• Chemical Abundances of M-dwarfs from the APOGEE Survey. I. The Exoplanet Hosting Stars Kepler-138 and Kepler-186
• Exploring Halo Substructure with Giant Stars: The Nature of the Triangulum-Andromeda Stellar Features
• First Magnetic Field Detection on a Class I Protostar
• The APOGEE Spectroscopic Survey of Kepler Planet Hosts: Feasibility, Efficiency, and First Results

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• Kepler-730: A hot Jupiter system with a close-in, transiting, Earth-sized planet
• The Relationship Between Globular Cluster Mass, Metallicity, and Light Element Abundance Variations
• Chemodynamics of newly identified giants with globular cluster like abundance patterns in the bulge, disk, and halo of the Milky Way
• The VISCACHA survey - I. Overview and First Results
• The bimodal [Mg/Fe] versus [Fe/H] bulge sequence as revealed by APOGEE DR14
• Identifying Sagittarius Stream Stars By Their APOGEE Chemical Abundance Signatures
• APOGEE [C/N] Abundances Across the Galaxy: Migration and Infall from Red Giant Ages
• Discovery of Resolved Magnetically Split Lines in SDSS/APOGEE Spectra of 157 Ap/Bp Stars
• TOI-150: A transiting hot Jupiter in the TESS southern CVZ
• The retrograde orbit of the globular cluster FSR1758 revealed with Gaia DR2
• Evidence of Hubble flow-like motion of young stellar populations away from the Perseus arm
• Data-driven stellar parameters for southern TESS FGK targets