New ATLAS9 And MARCS Model Atmosphere Grids For The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
dc.contributor.utaustinauthor | Shetrone, Matthew D. | en_US |
dc.creator | Meszaros, Sz. | en_US |
dc.creator | Prieto, C. Allende | en_US |
dc.creator | Edvardsson, B. | en_US |
dc.creator | Castelli, F. | en_US |
dc.creator | Perez, A. E. G. | en_US |
dc.creator | Gustafsson, B. | en_US |
dc.creator | Majewski, S. R. | en_US |
dc.creator | Plez, B. | en_US |
dc.creator | Schiavon, R. | en_US |
dc.creator | Shetrone, M. | en_US |
dc.creator | de Vicente, A. | en_US |
dc.date.accessioned | 2016-04-22T19:48:05Z | |
dc.date.available | 2016-04-22T19:48:05Z | |
dc.date.issued | 2012-10 | en |
dc.description.abstract | We present a new grid of model photospheres for the SDSS-III/APOGEE survey of stellar populations of the Galaxy, calculated using the ATLAS9 and MARCS codes. New opacity distribution functions were generated to calculate ATLAS9 model photospheres. MARCS models were calculated based on opacity sampling techniques. The metallicity ([M/H]) spans from -5 to 1.5 for ATLAS and -2.5 to 0.5 for MARCS models. There are three main differences with respect to previous ATLAS9 model grids: a new corrected H2O line list, a wide range of carbon ([C/M]) and alpha element [alpha/M] variations, and solar reference abundances from Asplund et al. The added range of varying carbon and alpha-element abundances also extends the previously calculated MARCS model grids. Altogether, 1980 chemical compositions were used for the ATLAS9 grid and 175 for the MARCS grid. Over 808,000 ATLAS9 models were computed spanning temperatures from 3500 K to 30,000 K and log g from 0 to 5, where larger temperatures only have high gravities. The MARCS models span from 3500 K to 5500 K, and log g from 0 to 5. All model atmospheres are publicly available online. | en_US |
dc.description.department | McDonald Observatory | en_US |
dc.description.sponsorship | Alfred P. Sloan Foundation | en_US |
dc.description.sponsorship | Participating Institutions | en_US |
dc.description.sponsorship | National Science Foundation | en_US |
dc.description.sponsorship | U.S. Department of Energy Office of Science | en_US |
dc.identifier | doi:10.15781/T2Z80H | |
dc.identifier.citation | Mészáros, Sz, C. Allende Prieto, Bengt Edvardsson, F. Castelli, AE García Pérez, Bengt Gustafsson, S. R. Majewski et al. >New ATLAS9 and MARCS Model Atmosphere Grids for the Apache Point Observatory Galactic Evolution Experiment (APOGEE).> The Astronomical Journal, Vol. 144, No. 4 (Oct., 2012): 120. | en_US |
dc.identifier.doi | 10.1088/0004-6256/144/4/120 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/2152/34525 | |
dc.language.iso | English | en_US |
dc.relation.ispartofserial | Astronomical Journal | en_US |
dc.rights | Administrative 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.subject | astrochemistry | en_US |
dc.subject | radiative transfer | en_US |
dc.subject | stars: atmospheres | en_US |
dc.subject | surveys | en_US |
dc.subject | solar chemical-composition | en_US |
dc.subject | digital sky survey | en_US |
dc.subject | line list | en_US |
dc.subject | ab-initio | en_US |
dc.subject | sdss-iii | en_US |
dc.subject | stars | en_US |
dc.subject | opacity | en_US |
dc.subject | water | en_US |
dc.subject | tio | en_US |
dc.subject | astronomy & astrophysics | en_US |
dc.title | New ATLAS9 And MARCS Model Atmosphere Grids For The Apache Point Observatory Galactic Evolution Experiment (APOGEE) | en_US |
dc.type | Article | en_US |
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