M-giant star candidates identified in LAMOST DR 1
文献类型：期刊论文
| 作者 | Zhong, Jing1 ; Lepine, Sebastien2,3,4; Li, Jing1; Chen, Li1; Hou, Jin-Liang1; Yang, Ming5; Li, Guang-Wei5; Zhang, Yong6; Hou, Yong-Hui6
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2015-08-01 |
| 卷号 | 15期号:8页码:1154-1165 |
| 关键词 | stars: fundamental parameters stars: late-type catalogs surveys |
| 英文摘要 | We perform a discrimination procedure with the spectral index diagram of TiO5 and CaH2+CaH3 to separate M giants from M dwarfs. Using the M giant spectra identified from LAMOST DR1 with high signal-to-noise ratio, we have successfully assembled a set of M giant templates, which show more reliable spectral features. Combining with the M dwarf/subdwarf templates in Zhong et al., we present an extended library of M-type templates which includes not only M dwarfs with a well-defined temperature and metallicity grid but also M giants with subtypes from M0 to M6. Then, the template-fitting algorithm is used to automatically identify and classify M giant stars from LAMOST DR1. The resulting catalog of M giant stars is cross-matched with 2MASS JHK(s) and WISE W1/W2 infrared photometry. In addition, we calculated the heliocentric radial velocity of all M giant stars by using the cross-correlation method with the template spectrum in a zero-velocity rest frame. Using the relationship between the absolute infrared magnitude M-J and our classified spectroscopic subtype, we derived the spectroscopic distance of M giants with uncertainties of about 40%. A catalog of 8639 M giants is provided. As an additional result of this analysis, we also present a catalog of 101 690 M dwarfs/subdwarfs which are processed by our classification pipeline. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ALL-SKY SURVEY ; LOW-MASS STARS ; M-DWARFS ; NORTHERN SKY ; SURVEY 2MASS ; PILOT SURVEY ; SPECTRA ; CATALOG ; LUMINOSITY ; PHOTOMETRY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360553400005 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://119.78.226.72/handle/331011/28242]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 2.Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA 3.Amer Museum Nat Hist, Div Phys Sci, Dept Astrophys, New York, NY 10024 USA 4.CUNY, Grad Ctr, New York, NY 10016 USA 5.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 6.Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Natl Astron Observ, Nanjing 210042, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhong, Jing,Lepine, Sebastien,Li, Jing,et al. M-giant star candidates identified in LAMOST DR 1[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(8):1154-1165. |
| APA | Zhong, Jing.,Lepine, Sebastien.,Li, Jing.,Chen, Li.,Hou, Jin-Liang.,...&Hou, Yong-Hui.(2015).M-giant star candidates identified in LAMOST DR 1.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(8),1154-1165. |
| MLA | Zhong, Jing,et al."M-giant star candidates identified in LAMOST DR 1".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.8(2015):1154-1165. |
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来源：上海天文台
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