Radial velocity measurements from LAMOST medium-resolution spectroscopic observations: a pointing towards the Kepler field

doi:10.1088/1674-4527/19/5/75

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	Radial velocity measurements from LAMOST medium-resolution spectroscopic observations: a pointing towards the Kepler field
	Liu, Nian 1; Fu, Jian-Ning 1; Zong, Weikai 1; Shi, Jian-Rong 2,3; Luo, A-Li 2,3; Zhang, Hao-Tong 2; Cui, Xiang-Qun 4; Hou, Yong-Hui 3,4; Pan, Yang 1; Shan, Xin-Rui 1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2019-05-01
卷号	19 期号:5 页码:8
关键词	technique: spectroscopy stars: radial velocity stars: statistics
ISSN号	1674-4527
DOI	10.1088/1674-4527/19/5/75
英文摘要	Radial velocity is one of the key measurements in understanding the fundamental properties of stars, stellar clusters and the Galaxy. A plate of stars in the Kepler field was observed in May of 2018 with the medium-resolution spectrographs of LAMOST, aiming to test the performance of this new system which is the upgraded equipment of LAMOST after the first five-year regular survey. We present our analysis on the radial velocity measurements (RVs) derived from these data. The results show that slight and significant systematic errors exist among the RVs obtained from the spectra collected by different spectrographs and exposures, respectively. After correcting the systematic errors with different techniques, the precision of RVs reaches similar to 1.3, similar to 1.0, similar to 0.5 and similar to 0.3 km s(-1) at S/N-r = 10, 20, 50 and 100, respectively. Comparing with the RVs of standard stars from the APOGEE survey, our RVs are calibrated with a zero-point shift of similar to 7 km s(-1). The results indicate that the LAMOST medium-resolution spectroscopic system may provide RVs with a reasonable accuracy and precision for the selected targets.
资助项目	National Development and Reform Commission ; National Natural Science Foundation of China[11673003] ; National Natural Science Foundation of China[11833002] ; China Postdoctoral Science Foundation[2018M641244] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-SLH007] ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS
WOS关键词	DATA RELEASE ; TELESCOPE ; STARS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000467595300013
资助机构	National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS ; LAMOST fellowship - Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, CAS
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26193]
专题	中国科学院国家天文台
通讯作者	Fu, Jian-Ning; Zong, Weikai
作者单位	1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.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	Liu, Nian,Fu, Jian-Ning,Zong, Weikai,et al. Radial velocity measurements from LAMOST medium-resolution spectroscopic observations: a pointing towards the Kepler field[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(5):8.
APA	Liu, Nian.,Fu, Jian-Ning.,Zong, Weikai.,Shi, Jian-Rong.,Luo, A-Li.,...&Zuo, Fang.(2019).Radial velocity measurements from LAMOST medium-resolution spectroscopic observations: a pointing towards the Kepler field.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(5),8.
MLA	Liu, Nian,et al."Radial velocity measurements from LAMOST medium-resolution spectroscopic observations: a pointing towards the Kepler field".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.5(2019):8.