TARGET SELECTION FOR THE APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT (APOGEE)

2013/08/01 by G. Zasowski, Jennifer A. Johnson, P. M. Frinchaboy +46 · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Observatory #Point (geometry) #Scientific Research and Discoveries #Selection (genetic algorithm) #Space observatory #Stellar evolution #Stellar, planetary, and galactic studies #astro-ph.GA

paper · pdf · doi:10.1088/0004-6256/146/4/81

Accepted to AJ. 31 pages, 11 figures

arxiv created 2013/08/01 · openalex publication_date 2013/08/22 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and halo), with the principal goal of constraining dynamical and chemical evolution models of the Milky Way. APOGEE takes advantage of the reduced effects of extinction at infrared wavelengths to observe the inner Galaxy and bulge at an unprecedented level of detail. The survey's broad spatial and wavelength coverage enables users of APOGEE data to address numerous Galactic structure and stellar populations issues. In this paper we describe the APOGEE targeting scheme and document its various target classes to provide the necessary background and reference information to analyze samples of APOGEE data with awareness of the imposed selection criteria and resulting sample properties. APOGEE's primary sample consists of ∼10 5 red giant stars, selected to minimize observational biases in age and metallicity. We present the methodology and considerations that drive the selection of this sample and evaluate the accuracy, efficiency, and caveats of the selection and sampling algorithms. We also describe additional target classes that contribute to the APOGEE sample, including numerous ancillary science programs, and we outline the targeting data that will be included in the public data releases.

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Cited by

• CALIBRATIONS OF ATMOSPHERIC PARAMETERS OBTAINED FROM THE FIRST YEAR OF SDSS-III APOGEE OBSERVATIONS
• ON GALACTIC DENSITY MODELING IN THE PRESENCE OF DUST EXTINCTION
• THE STELLAR POPULATION STRUCTURE OF THE GALACTIC DISK