ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE

被引：563

作者：

Garcia Perez, Ana E. ^{[1
,2
,3
]}

Allende Prieto, Carlos ^{[2
,3
]}

Holtzman, Jon A. ^{[4
]}

Shetrone, Matthew ^{[5
]}

Meszaros, Szabolcs ^{[6
]}

Bizyaev, Dmitry ^{[7
,8
]}

Carrera, Ricardo ^{[2
,3
]}

Cunha, Katia ^{[9
,10
]}

Garcia-Hernandez, D. A. ^{[2
,3
]}

Johnson, Jennifer A. ^{[11
]}

Majewski, Steven R. ^{[1
]}

Nidever, David L. ^{[12
]}

Schiavon, Ricardo P. ^{[13
]}

Shane, Neville ^{[1
]}

Smith, Verne V. ^{[14
]}

Sobeck, Jennifer ^{[1
]}

Troup, Nicholas

Zamora, Olga ^{[2
,3
]}

Weinberg, David H. ^{[11
]}

Bovy, Jo ^{[15
]}

Eisenstein, Daniel J. ^{[16
]}

Feuillet, Diane ^{[4
]}

Frinchaboy, Peter M. ^{[17
]}

Hayden, Michael R. ^{[4
]}

Hearty, Fred R. ^{[18
]}

Nguyen, Duy C. ^{[19
]}

O'Connell, Robert W. ^{[1
]}

Pinsonneault, Marc H. ^{[11
]}

Wilson, John C. ^{[1
]}

Zasowski, Gail ^{[20
]}

机构：

[1] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA

[2] Inst Astrofis Canarias, E-38205 San Cristobal la Laguna, Tenerife, Spain

[3] Univ La Laguna, Dept Astrofis, E-38206 San Cristobal la Laguna, Tenerife, Spain

[4] New Mexico State Univ, Las Cruces, NM 88003 USA

[5] Univ Texas Austin, McDonald Observ, Ft Davis, TX 79734 USA

[6] ELTE Gothard Astrophys Observ, Szent Imre Herceg St 112, H-9704 Szombathely, Hungary

[7] Apache Point Observ, POB 59, Sunspot, NM 88349 USA

[8] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia

[9] Observ Nacl, Rio De Janeiro, Brazil

[10] Univ Arizona, Steward Observ, Tucson, AZ 85719 USA

[11] Ohio State Univ, Dept Astron, 174 W 18Th Ave, Columbus, OH 43210 USA

[12] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[13] Liverpool John Moores Univ, Astrophys Res Inst, Wirral CH41 1LD, Merseyside, England

[14] Natl Opt Astron Observ, Tucson, AZ 85719 USA

[15] Inst Adv Study, Einstein Dr, Princeton, NJ 08540 USA

[16] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[17] Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA

[18] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

[19] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[20] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

ASTRONOMICAL JOURNAL | 2016年 / 151卷 / 06期

基金：

美国安德鲁·梅隆基金会; 美国国家科学基金会;

关键词：

Galaxy: center; Galaxy: structure; methods: data analysis; stars: abundances; stars: atmospheres; ATMOSPHERIC PARAMETERS; DATA RELEASE; MILKY-WAY; SDSS; STARS; SPECTROSCOPY; SPECTRA; SEGUE;

D O I：

10.3847/0004-6256/151/6/144

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has built the largest moderately high-resolution (R approximate to 22,500) spectroscopic map of the stars across the Milky Way, and including dust-obscured areas. The APOGEE Stellar Parameter and Chemical Abundances Pipeline (ASPCAP) is the software developed for the automated analysis of these spectra. ASPCAP determines atmospheric parameters and chemical abundances from observed spectra by comparing observed spectra to libraries of theoretical spectra, using. 2 minimization in a multidimensional parameter space. The package consists of a FORTRAN90 code that does the actual minimization and a wrapper IDL code for book-keeping and data handling. This paper explains in detail the ASPCAP components and functionality, and presents results from a number of tests designed to check its performance. ASPCAP provides stellar effective temperatures, surface gravities, and metallicities precise to 2%, 0.1 dex, and 0.05 dex, respectively, for most APOGEE stars, which are predominantly giants. It also provides abundances for up to 15 chemical elements with various levels of precision, typically under 0.1 dex. The final data release (DR12) of the Sloan Digital Sky Survey III contains an APOGEE database of more than 150,000 stars. ASPCAP development continues in the SDSS-IV APOGEE-2 survey.

引用

页数：20

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