SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release
文献类型：期刊论文
| 作者 | Yan,Renbin3; Chen,Yanping4; Lazarz,Daniel3; Bizyaev,Dmitry5,6; Maraston,Claudia1; Stringfellow,Guy S.7; McCarthy,Kyle3; Meneses-Goytia,Sofia1,8; Law,David R.9; Thomas,Daniel1 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 883期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | catalogs Galaxy: stellar content stars: fundamental parameters stars: general techniques: spectroscopic |
| DOI | 10.3847/1538-4357/ab3ebc |
| 英文摘要 | Abstract We present the first release of the MaNGA Stellar Library (MaStar), which is a large, well-calibrated, high-quality empirical library covering the wavelength range 3622–10354 ? at a resolving power of R?～?1800. The spectra were obtained using the same instrument as used by the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) project, by piggybacking on the Sloan Digital Sky Survey (SDSS-IV)/Apache Point Observatory Galaxy Evolution Experiment 2-N (APOGEE-2N) observations. Compared to previous empirical libraries, the MaStar library will have a higher number of stars and a more comprehensive stellar-parameter coverage, especially of cool dwarfs, low-metallicity stars, and stars with different [α/Fe], achieved by a sophisticated target-selection strategy that takes advantage of stellar-parameter catalogs from the literature. This empirical library will provide a new basis for stellar-population synthesis and is particularly well suited for stellar-population analysis of MaNGA galaxies. The first version of the library contains 8646 high-quality per-visit spectra for 3321 unique stars. Compared to photometry, the relative flux calibration of the library is accurate to 3.9% in g???r, 2.7% in r???i, and 2.2% in i???z. The data are released as part of SDSS Data Release 15. We expect the final release of the library to contain more than 10,000 stars. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-883-2-AB3EBC |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28419]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Institute of Cosmology & Gravitation, University of Portsmouth, Dennis Sciama Building, Portsmouth, PO1 3FX, UK 2.Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces NM 88003, USA 3.Department of Physics and Astronomy, University of Kentucky, 505 Rose St., Lexington, KY 40506-0057, USA; rya225@g.uky.edu, yanrenbin@gmail.com 4.New York University Abu Dhabi, Abu Dhabi, P.O. Box 129188, United Arab Emirates 5.Apache Point Observatory and New Mexico State University, P.O. Box 59, Sunspot, NM 88349, USA 6.Sternberg Astronomical Institute, Moscow State University, Universitetskij pr. 13, Moscow, Russia 7.Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, University of Colorado, 389 UCB, Boulder, CO 80309-0389, USA 8.Department of Physics, University of Surrey, Guildford, GU2 7XH, UK 9.Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA 10.Instituto de Astrofísica de Canarias, Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain |
| 推荐引用方式 GB/T 7714 | Yan,Renbin,Chen,Yanping,Lazarz,Daniel,et al. SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release[J]. The Astrophysical Journal,2019,883(2). |
| APA | Yan,Renbin.,Chen,Yanping.,Lazarz,Daniel.,Bizyaev,Dmitry.,Maraston,Claudia.,...&Zhao,Yong-Heng.(2019).SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release.The Astrophysical Journal,883(2). |
| MLA | Yan,Renbin,et al."SDSS-IV MaStar: A Large and Comprehensive Empirical Stellar Spectral Library—First Release".The Astrophysical Journal 883.2(2019). |
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来源：国家天文台
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