A method for estimating masses of W Ursae Majoris-type binaries

doi:10.1088/1674-4527/20/12/196

	A method for estimating masses of W Ursae Majoris-type binaries
	Lu, Li-Na 1,2; Liu, Jin-Zhong 1,2; Jiang, Deng-Kai 4,5; Wang, Ya-Hui 3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2020-12-01
卷号	20 期号:12 页码:196
关键词	stars binaries eclipsing WUrsaeMajoris (WUMa) binaries masses
ISSN号	1674-4527
DOI	10.1088/1674-4527/20/12/196
产权排序	1
英文摘要	Masses of W Ursae Majoris-type (W UMa) binaries play a critical role in investigating stellar dynamical evolutionary status. In this paper, we combine the PARSEC (PAdova and TRieste Stellar Evolution Code) with the Roche geometric model to provide a method to determine the masses of W UMa systems. To verify the validity of this method, we compile a sample of 140 spectrum binaries from the literature, which includes 76 W- and 64 A-subtype systems with reliable physical parameters. We find that the average fractional difference and the standard deviation (sigma M) of the residuals for W-subtype and A-subtype approximately amount to 15.66% and 0.1218, 16.03% and 0.2094, respectively. Meanwhile, we also perform detailed analyses in accordance with the orbital period, the effective temperatures and the mass ratio. We find that the method is more applicable to determine masses for W UMa systems with low effective temperature and short period.
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资助项目	National Natural Science Foundation of China[11661161016] ; program of Tianshan Youth[2017Q091] ; 13th Five-year information Plan of Chinese Academy of Sciences[XXH1350303-107] ; Natural Science Foundation of Yunnan Province[2017HC018]
WOS关键词	PARSEC EVOLUTIONARY TRACKS ; W UMA STARS ; PHYSICAL PARAMETERS ; RADIAL-VELOCITY ; URSAE-MAJORIS ; CONTACT BINARIES ; NEAR-CONTACT ; LIGHT CURVES ; GEOMETRIC PARAMETERS ; ECLIPSING BINARIES
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:000607969300001
资助机构	National Natural Science Foundation of China ; program of Tianshan Youth ; 13th Five-year information Plan of Chinese Academy of Sciences ; Natural Science Foundation of Yunnan Province
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3817]
专题	新疆天文台_光学天文与技术应用研究室
通讯作者	Liu, Jin-Zhong
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Xinjiang Inst Engn, Lab New Energy & Mat, Urumqi 830091, Peoples R China 4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China 5.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Lu, Li-Na,Liu, Jin-Zhong,Jiang, Deng-Kai,et al. A method for estimating masses of W Ursae Majoris-type binaries[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(12):196.
APA	Lu, Li-Na,Liu, Jin-Zhong,Jiang, Deng-Kai,&Wang, Ya-Hui.(2020).A method for estimating masses of W Ursae Majoris-type binaries.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(12),196.
MLA	Lu, Li-Na,et al."A method for estimating masses of W Ursae Majoris-type binaries".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.12(2020):196.