Candidate members of star clusters from LAMOST DR2

	Candidate members of star clusters from LAMOST DR2
	Zhang, Bo1,2 ; Chen, Xiao-Yan1 ; Liu, Chao1 ; Chen, Li 3; Deng, Li-Cai1 ; Hou, Jin-Liang 3; Shao, Zheng-Yi 3; Yang, Fan1 ; Wu, Yue1 ; Yang, Ming1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-08-01
卷号	15 期号:8 页码:1197-+
关键词	open clusters and associations: general stars: statistics catalogs surveys methods: data analysis
英文摘要	In this work, we provide 2189 photometrically- and kinematically-selected candidate members of 24 star clusters from the LAMOST DR2 catalog. We perform two-step membership identification: selection along the stellar track in the color-magnitude diagram, i.e., photometric identification, and selection from the distribution of radial velocities, i.e. the kinematic identification. We find that the radial velocities from the LAMOST data are very helpful in the membership identification. The mean probability of membership is 40% for the sample selected with radial velocity. With these 24 star clusters, we investigate the performance of the radial velocity and metallicity estimated with the LAMOST pipeline. We find that the systematic offsets in radial velocity and metallicity are 0.85 +/- 1.26 km s(-1) and -0.08 +/- 0.04 dex, with dispersions of 5.47(-0.71)(+1.16) km s(-1) and 0.13(-0.02)(+0.04) dex, respectively. Finally, we propose that the photometrically-selected candidate members of the clusters covered by the LAMOST footprint should be assigned higher priority so that more candidate stars can be observed.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360553400008
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5620]
专题	国家天文台_光学天文研究部
作者单位	1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, 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	Zhang, Bo,Chen, Xiao-Yan,Liu, Chao,et al. Candidate members of star clusters from LAMOST DR2[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(8):1197-+.
APA	Zhang, Bo.,Chen, Xiao-Yan.,Liu, Chao.,Chen, Li.,Deng, Li-Cai.,...&Wang, Yue-Fei.(2015).Candidate members of star clusters from LAMOST DR2.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(8),1197-+.
MLA	Zhang, Bo,et al."Candidate members of star clusters from LAMOST DR2".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.8(2015):1197-+.