Zasowski, G.; Johnson, Jennifer A.; Frinchaboy, P. M.; Majewski, S. R.; Nidever, D. L.; Rocha Pinto, H. J.; Girardi, L.; Andrews, B.; Chojnowski, S. D.; Cudworth, K. M.; Jackson, K.; Munn, J.; Skrutskie, M. F.; Beaton, R. L.; Blake, C. H.; Covey, K.; Deshpande, R.; Epstein, C.; Fabbian, D.; Fleming, S. W.; García-Hernández, D. A.; Herrero, A.; Mahadevan, S.; Mészáros, Sz.; Schultheis, M.; Sellgren, K.; Terrien, R.; van Saders, J.; Allende-Prieto, C.; Bizyaev, D.; Burton, A.; Cunha, K.; da Costa, L. N.; Hasselquist, S.; Hearty, F.; Holtzman, J.; García Pérez, A. E.; Maia, M. A. G.; O'Connell, R. W.; O'Donnell, C.; Pinsonneault, M.; Santiago, B. X.; Schiavon, R. P.; Shetrone, M.; Smith, V.; Wilson, J. C.
Bibliographical reference
The Astronomical Journal, Volume 146, Issue 4, article id. 81, 28 pp. (2013).
Description
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
~105 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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