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Automatic determination of stellar atmospheric parameters and construction of stellar spectral templates of the Guoshoujing Telescope (LAMOST)
Wu, Yue1,2,3,4,5; Luo, A-Li1,4,6; Li, Hai-Ning1,4; Shi, Jian-Rong1,4; Prugniel, Philippe2,3; Liang, Yan-Chun1,4; Zhao, Yong-Heng1,4,6; Zhang, Jian-Nan1,4; Bai, Zhong-Rui1,4; Wei, Peng1,4,6; Dong, Wei-Xiang1,4,6; Zhang, Hao-Tong1,4; Chen, Jian-Jun1,4
2011-08-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume11Issue:8Pages:924-946
AbstractA number of spectroscopic surveys have been carried out or are planned to study the origin of the Milky Way. Their exploitation requires reliable automated methods and softwares to measure the fundamental parameters of the stars. Adopting the ULySS package, we have tested the effect of different resolutions and signal-to-noise ratios (SNR) on the measurement of the stellar atmospheric parameters (effective temperature T-eff, surface gravity log g, and metallicity [Fe/H]). We show that ULySS is reliable for determining these parameters with medium-resolution spectra (R similar to 2000). Then, we applied the method to measure the parameters of 771 stars selected in the commissioning database of the Guoshoujing Telescope (LAMOST). The results were compared with the SDSS/SEGUE Stellar Parameter Pipeline (SSPP), and we derived precisions of 167K, 0.34 dex, and 0.16 dex for T-eff, log g and [Fe/H] respectively. Furthermore, 120 of these stars are selected to construct the primary stellar spectral template library (Version 1.0) of LAMOST, and will be deployed as basic ingredients for the LAMOST automated parametrization pipeline.
KeywordAstronomical Data Bases: Atlases Stars: Fundamental Parameters Techniques: Spectroscopic Surveys
Indexed BySCI
Language英语
WOS IDWOS:000294232800006
Citation statistics
Cited Times:101[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7979
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Lyon 1, F-69622 Villeurbanne, France
3.CNRS, Observ Lyon, CRAL, UMR 5574, F-69561 St Genis Laval, France
4.Chinese Acad Sci, Key Lab Opt Astron, NAOC, Beijing 100012, Peoples R China
5.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
6.Shandong Univ Weihai, Weihai 264209, Peoples R China
Recommended Citation
GB/T 7714
Wu, Yue,Luo, A-Li,Li, Hai-Ning,et al. Automatic determination of stellar atmospheric parameters and construction of stellar spectral templates of the Guoshoujing Telescope (LAMOST)[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(8):924-946.
APA Wu, Yue.,Luo, A-Li.,Li, Hai-Ning.,Shi, Jian-Rong.,Prugniel, Philippe.,...&Chen, Jian-Jun.(2011).Automatic determination of stellar atmospheric parameters and construction of stellar spectral templates of the Guoshoujing Telescope (LAMOST).RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(8),924-946.
MLA Wu, Yue,et al."Automatic determination of stellar atmospheric parameters and construction of stellar spectral templates of the Guoshoujing Telescope (LAMOST)".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.8(2011):924-946.
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