NAOC Open IR
A Catalog of RV Variable Star Candidates from LAMOST
Tian, Zhijia1; Liu, Xiaowei2; Yuan, Haibo3; Fang, Xuan4,5; Chen, Bingqiu2; Xiang, Maosheng6; Huang, Yang2; Bi, Shaolan3; Yang, Wuming3; Wu, Yaqian7; Wang, Chun8; Zhang, Huawei8; Huo, Zhiying7; Yang, Yong2; Liu, Gaochao9; Guo, Jincheng8; Zhang, Meng8
2020-08-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume249Issue:2Pages:13
AbstractRadial velocity (RV) variable stars are important in astrophysics. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectroscopic survey has provided similar to 6.5 million stellar spectra in its Data Release 4 (DR4). During the survey similar to 4.7 million unique sources were targeted and similar to 1 million stars observed repeatedly. The probabilities of stars being RV variables are estimated by comparing the observed RV variations with simulated ones. We build a catalog of 80,702 RV variable candidates with probability greater than 0.60 by analyzing the multi-epoch sources covered by LAMOST DR4. Simulations and cross-identifications show that the purity of the catalog is higher than 80%. The catalog consists of 77% binary systems and 7% pulsating stars as well as 16% pollution by single stars. 3138 RV variables are classified through cross-identifications with published results in literatures. By using the 3138 sources common in both LAMOST and a collection of published RV variable catalogs, we are able to analyze LAMOST's RV variable detection rate. The efficiency of the method adopted in this work relies not only on the sampling frequency of observations but also periods and amplitudes of RV variables. With the progress of LAMOST, Gaia, and other surveys, more and more RV variables will be confirmed and classified. This catalog is valuable for other large-scale surveys, especially for RV variable searches. The catalog will be released according to the LAMOST Data Policy via http://dr4.lamost.org..
KeywordVariable stars Catalogs Radial velocity Extrinsic variable stars Intrinsic variable stars Binary stars Pulsating variable stars Star counts Stellar astronomy Astrostatistics Spectroscopy Surveys
Funding OrganizationNational Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy
DOI10.3847/1538-4365/ab9904
WOS KeywordASAS-SN CATALOG ; STELLAR ; MULTIPLICITY ; BINARIES ; FRACTION ; DATABASE ; SPECTRA ; LIBRARY
Language英语
Funding ProjectNational Development and Reform Commission ; National Natural Science Foundation of China[11803030] ; National Natural Science Foundation of China[11443006] ; National Natural Science Foundation of China[11773005] ; National Natural Science Foundation of China[11803029] ; National Key Basic Research Program of China[2014CB845700] ; China Postdoctoral Science Foundation[2016M600850] ; Science & Technology Department of Yunnan Province-Yunnan University[2019FY003005] ; Joint Research Fund in Astronomy[U1531244] ; Joint Research Fund in Astronomy[U1631236]
Funding OrganizationNational Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy ; National Development and Reform Commission ; National Development and Reform Commission ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Basic Research Program of China ; National Key Basic Research Program of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Science & Technology Department of Yunnan Province-Yunnan University ; Science & Technology Department of Yunnan Province-Yunnan University ; Joint Research Fund in Astronomy ; Joint Research Fund in Astronomy
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000556829300001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82435
Collection中国科学院国家天文台
Corresponding AuthorTian, Zhijia
Affiliation1.Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650200, Yunnan, Peoples R China
2.Yunnan Univ, South Western Inst Astron Res, Kunming 650500, Yunnan, Peoples R China
3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
4.Chinese Acad Sci NAOC, Key Lab Opt Astron, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China
5.Univ Hong Kong, Fac Sci, Dept Phys, Pokfulam Rd, Hong Kong, Peoples R China
6.Max Planck Inst Astron, Heidelberg, Germany
7.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
8.Peking Univ, Dept Astron, Beijing 100871, Peoples R China
9.China Three Gorges Univ, Yichang 443002, Peoples R China
Recommended Citation
GB/T 7714
Tian, Zhijia,Liu, Xiaowei,Yuan, Haibo,et al. A Catalog of RV Variable Star Candidates from LAMOST[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2020,249(2):13.
APA Tian, Zhijia.,Liu, Xiaowei.,Yuan, Haibo.,Fang, Xuan.,Chen, Bingqiu.,...&Zhang, Meng.(2020).A Catalog of RV Variable Star Candidates from LAMOST.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,249(2),13.
MLA Tian, Zhijia,et al."A Catalog of RV Variable Star Candidates from LAMOST".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 249.2(2020):13.
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