Validation of LAMOST stellar parameters with the PASTEL catalog

	Validation of LAMOST stellar parameters with the PASTEL catalog
	Gao, Hua 1,2; Zhang, Hua-Wei 1,2; Xiang, Mao-Sheng 1,2; Huang, Yang 1,2; Liu, Xiao-Wei 1,2; Luo, A-Li3 ; Zhang, Hao-Tong3 ; Wu, Yue3 ; Zhang, Yong 4; Li, Guang-Wei3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-12-01
卷号	15 期号:12 页码:2204-2212
关键词	stars: fundamental parameters astronomical data bases: catalogs astronomical data bases: surveys
英文摘要	The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) published its first data release (DR1) in 2013, which is currently the largest dataset of stellar spectra in the world. We combine the PASTEL catalog and SIMBAD radial velocities as a testing standard to validate stellar, parameters (effective temperature T-eff,, surface gravity log g, metallicity [Fe/H] and radial velocity V-r) derived from DR1. Through cross-identification of the DR1 catalogs and the PASTEL catalog, we obtain a preliminary sample of 422 stars. After removal of stellar parameter measurements from problematic spectra and applying effective temperature constraints to the sample, we compare the stellar parameters from DR1 with those from PASTEL and SIMBAD to demonstrate that the DR1 results are reliable in restricted ranges of T-eff. We derive standard deviations of 110 K, 0.19 dex and 0.11 dex for T-eff,, log g and [Fe/H] respectively when T-eff < 8000 K, and 4.91 km s(-1) for V-r when T-eff < 10 000 K. Systematic errors are negligible except for those of V-r. In addition, metallicities in DR1 are systematically higher than those in PASTEL, in the range of PASTEL [Fe/H] < -1.5.
收录类别	SCI
语种	英语
WOS记录号	WOS:000367563300008
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5462]
专题	国家天文台_光学天文研究部
作者单位	1.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Natl Astron Observ, Nanjing 210042, Peoples R China
推荐引用方式 GB/T 7714	Gao, Hua,Zhang, Hua-Wei,Xiang, Mao-Sheng,et al. Validation of LAMOST stellar parameters with the PASTEL catalog[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(12):2204-2212.
APA	Gao, Hua.,Zhang, Hua-Wei.,Xiang, Mao-Sheng.,Huang, Yang.,Liu, Xiao-Wei.,...&Du, Bing.(2015).Validation of LAMOST stellar parameters with the PASTEL catalog.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(12),2204-2212.
MLA	Gao, Hua,et al."Validation of LAMOST stellar parameters with the PASTEL catalog".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.12(2015):2204-2212.