Calibrations Of Atmospheric Parameters Obtained From The First Year Of Sdss-III APOGEE Observations

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dc.contributor.utaustinauthorKoesterke, L.en_US
dc.creatorMeszaros, S.en_US
dc.creatorHoltzman, J.en_US
dc.creatorPerez, A. E. Garciaen_US
dc.creatorPrieto, C. Allendeen_US
dc.creatorSchiavon, R. P.en_US
dc.creatorBasu, S.en_US
dc.creatorBizyaev, D.en_US
dc.creatorChaplin, W. J.en_US
dc.creatorChojnowski, S. D.en_US
dc.creatorCunha, K.en_US
dc.creatorElsworth, Y.en_US
dc.creatorEpstein, C.en_US
dc.creatorFrinchaboy, P. M.en_US
dc.creatorGarcia, R. A.en_US
dc.creatorHearty, F. R.en_US
dc.creatorHekker, S.en_US
dc.creatorJohnson, J. A.en_US
dc.creatorKallinger, T.en_US
dc.creatorKoesterke, L.en_US
dc.creatorMajewski, S. R.en_US
dc.creatorMartell, S. L.en_US
dc.creatorNidever, D.en_US
dc.creatorPinsonneault, M. H.en_US
dc.creatorO'Connell, J.en_US
dc.creatorShetrone, M.en_US
dc.creatorSmith, V. V.en_US
dc.creatorWilson, J. C.en_US
dc.creatorZasowski, G.en_US
dc.date.accessioned2016-04-22T19:47:44Z
dc.date.available2016-04-22T19:47:44Z
dc.date.issued2013-11en
dc.description.abstractThe Sloan Digital Sky Survey III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a three-year survey that is collecting 105 high-resolution spectra in the near-IR across multiple Galactic populations. To derive stellar parameters and chemical compositions from this massive data set, the APOGEE Stellar Parameters and Chemical Abundances Pipeline (ASPCAP) has been developed. Here, we describe empirical calibrations of stellar parameters presented in the first SDSS-III APOGEE data release (DR10). These calibrations were enabled by observations of 559 stars in 20 globular and open clusters. The cluster observations were supplemented by observations of stars in NASA's Kepler field that have well determined surface gravities from asteroseismic analysis. We discuss the accuracy and precision of the derived stellar parameters, considering especially effective temperature, surface gravity, and metallicity; we also briefly discuss the derived results for the abundances of the a-elements, carbon, and nitrogen. Overall, we find that ASPCAP achieves reasonably accurate results for temperature and metallicity, but suffers from systematic errors in surface gravity. We derive calibration relations that bring the raw ASPCAP results into better agreement with independently determined stellar parameters. The internal scatter of ASPCAP parameters within clusters suggests that metallicities are measured with a precision better than 0.1 dex, effective temperatures better than 150 K, and surface gravities better than 0.2 dex. The understanding provided by the clusters and Kepler giants on the current accuracy and precision will be invaluable for future improvements of the pipeline.en_US
dc.description.departmentMcDonald Observatoryen_US
dc.description.sponsorshipNetherlands Organisation for Scientific Research (NWO)en_US
dc.description.sponsorshipNational Science Foundation AST-0907873, AST-1109888en_US
dc.description.sponsorshipSTFC (the Science and Technology Facilities Council, UK)en_US
dc.description.sponsorshipNSF AST-1105930en_US
dc.description.sponsorshipNASA ADAP NNX13AE70Gen_US
dc.description.sponsorshipAlfred P. Sloan Foundationen_US
dc.description.sponsorshipNational Science Foundationen_US
dc.description.sponsorshipUS Department of Energy Office of Scienceen_US
dc.description.sponsorshipUniversity of Arizonaen_US
dc.description.sponsorshipBrookhaven National Laboratoryen_US
dc.description.sponsorshipUniversity of Cambridgeen_US
dc.description.sponsorshipCarnegie Mellon Universityen_US
dc.description.sponsorshipUniversity of Floridaen_US
dc.description.sponsorshipHarvard Universityen_US
dc.description.sponsorshipInstituto de Astrofisica de Canariasen_US
dc.description.sponsorshipMichigan State/Notre Dame/JINA Participation Groupen_US
dc.description.sponsorshipJohns Hopkins Universityen_US
dc.description.sponsorshipLawrence Berkeley National Laboratoryen_US
dc.description.sponsorshipMax Planck Institute for Astrophysicsen_US
dc.description.sponsorshipNew Mexico State Universityen_US
dc.description.sponsorshipNew York Universityen_US
dc.description.sponsorshipOhio State Universityen_US
dc.description.sponsorshipPennsylvania State Universityen_US
dc.description.sponsorshipUniversity of Portsmouthen_US
dc.description.sponsorshipPrinceton Universityen_US
dc.description.sponsorshipUniversity of Tokyoen_US
dc.description.sponsorshipUniversity of Utahen_US
dc.description.sponsorshipVanderbilt Universityen_US
dc.description.sponsorshipUniversity of Virginiaen_US
dc.description.sponsorshipUniversity of Washingtonen_US
dc.description.sponsorshipYale Universityen_US
dc.identifierdoi:10.15781/T24Z33
dc.identifier.citationMeszaros, Sz, J. Holtzman, AE Garcia Perez, C. Allende Prieto, R. P. Schiavon, S. Basu, D. Bizyaev et al. >Calibrations of Atmospheric Parameters Obtained from the First Year of SDSS-III APOGEE Observations.> The Astronomical Journal, Vol. 146, No. 5 (Nov., 2013): 133.en_US
dc.identifier.doi10.1088/0004-6256/146/5/133en_US
dc.identifier.issn0004-6256en_US
dc.identifier.urihttp://hdl.handle.net/2152/34508
dc.language.isoEnglishen_US
dc.relation.ispartofserialAstronomical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectstars: abundancesen_US
dc.subjectstars: fundamental parametersen_US
dc.subjectsurveysen_US
dc.subjectglobular-cluster m15en_US
dc.subjectdigital sky surveyen_US
dc.subject3-dimensional hydrodynamicalen_US
dc.subjectsimulationsen_US
dc.subjectresolution infrared-spectroscopyen_US
dc.subjectevolution experimenten_US
dc.subjectapogeeen_US
dc.subjectstar abundance variationsen_US
dc.subjectold open clustersen_US
dc.subjectred giant branchen_US
dc.subjectpoor halo fielden_US
dc.subjectmilky-wayen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleCalibrations Of Atmospheric Parameters Obtained From The First Year Of Sdss-III APOGEE Observationsen_US
dc.typeArticleen_US

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