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The Nearby Very Low Mass Triple Star LHS 1070
Xia, Fang1; Fu, Yanning1; Wang, Xiaoli2,3
2019-09-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume882Issue:2Pages:6
Corresponding AuthorXia, Fang(xf@pmo.ac.cn)
AbstractThe component masses and kinematic parameters of the triple star LHS 1070 are redetermined by using the three-body model. It is shown that the discrepancy between new observations and the two-body fitting results is due to the three-body effects, which justifies the necessity of using the three-body model. Numerical integration shows that the three-body system remains integrated and its hierarchical configuration remains unchanged since the formation of the components. This implies that the triple star may not be formed by a three-body encounter. Also, the possibility that the most massive component is itself a tightly bounded binary is excluded based on the redetermined dynamical mass. The improved dynamical masses of the three components are greatly helpful to constrain at the lower end of the stellar empirical mass-luminosity relation.
Keywordbinaries: close methods: data analysis stars: fundamental parameters stars: individual (LHS 1070) stars: kinematics and dynamics
DOI10.3847/1538-4357/ab32de
WOS KeywordLUMINOSITY-RELATION ; CD-ROM ; PARALLAXES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000485719800012
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27954
Collection中国科学院紫金山天文台
Corresponding AuthorXia, Fang
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Xia, Fang,Fu, Yanning,Wang, Xiaoli. The Nearby Very Low Mass Triple Star LHS 1070[J]. ASTROPHYSICAL JOURNAL,2019,882(2):6.
APA Xia, Fang,Fu, Yanning,&Wang, Xiaoli.(2019).The Nearby Very Low Mass Triple Star LHS 1070.ASTROPHYSICAL JOURNAL,882(2),6.
MLA Xia, Fang,et al."The Nearby Very Low Mass Triple Star LHS 1070".ASTROPHYSICAL JOURNAL 882.2(2019):6.
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