LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC): the second release of value-added catalogues
文献类型：期刊论文
| 作者 | Xiang, M. -S.1; Liu, X. -W.2,3; Yuan, H. -B.4; Huo, Z. -Y.1; Huang, Y.2 ; Wang, C.2; Chen, B. -Q.2; Ren, J. -J.2; Zhang, H. -W.2; Tian, Z. -J.2
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2017-05-01 |
| 卷号 | 467期号:2页码:1890-1914 |
| 关键词 | techniques: spectroscopic Galaxy: abundance Galaxy: disc Galaxy: evolution Galaxy: formation |
| 英文摘要 | We present the second release of value-added catalogues of the LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC DR2). The catalogues present values of radial velocity V-r, atmospheric parameters - effective temperature T-eff, surface gravity log g, metallicity [Fe/H], alpha-element to iron (metal) abundance ratio [alpha/Fe] ([alpha/M]), elemental abundances [C/H] and [N/H] and absolute magnitudes M-V and M-Ks deduced from 1.8 million spectra of 1.4 million unique stars targeted by the LSS-GAC since 2011 September until 2014 June. The catalogues also give values of interstellar reddening, distance and orbital parameters determined with a variety of techniques, as well as proper motions and multiband photometry from the far-UV to the mid-IR collected from the literature and various surveys. Accuracies of radial velocities reach 5 km s(-1) for the late-type stars, and those of distance estimates range between 10 and 30 per cent, depending on the spectral signal-to-noise ratios. Precisions of [Fe/H], [C/H] and [N/H] estimates reach 0.1 dex, and those of [alpha/Fe] and [alpha/M] reach 0.05 dex. The large number of stars, the contiguous sky coverage, the simple yet non-trivial target selection function and the robust estimates of stellar radial velocities and atmospheric parameters, distances and elemental abundances make the catalogues a valuable data set to study the structure and evolution of the Galaxy, especially the solar-neighbourhood and the outer disc. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; STELLAR ATMOSPHERIC PARAMETERS ; NEWTON-TELESCOPE LIBRARY ; MILKY-WAY DISK ; EXTINCTION COEFFICIENTS ; METALLICITY GRADIENTS ; EMPIRICAL SPECTRA ; SURVEY 2MASS ; 1ST DATA ; STARS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000398416700047 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8233]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 4.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 5.Hebei Normal Univ, Dept Space Sci & Astron, Shijiazhuang 050024, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, M. -S.,Liu, X. -W.,Yuan, H. -B.,et al. LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC): the second release of value-added catalogues[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,467(2):1890-1914. |
| APA | Xiang, M. -S..,Liu, X. -W..,Yuan, H. -B..,Huo, Z. -Y..,Huang, Y..,...&Li, G. -W..(2017).LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC): the second release of value-added catalogues.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,467(2),1890-1914. |
| MLA | Xiang, M. -S.,et al."LAMOST Spectroscopic Survey of the Galactic Anticentre (LSS-GAC): the second release of value-added catalogues".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 467.2(2017):1890-1914. |
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来源：国家天文台
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