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The Nearby Very Low Mass Triple Star LHS 1070
Xia, Fang1; Fu, Yanning1; Wang XL(王晓丽)2,3
发表期刊ASTROPHYSICAL JOURNAL
2019-09-10
卷号882期号:2页码:6
DOI10.3847/1538-4357/ab32de
产权排序第2完成单位
收录类别SCI
关键词binaries: close methods: data analysis stars: fundamental parameters stars: individual (LHS 1070) stars: kinematics and dynamics
摘要

The 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.

资助项目National Natural Science Foundation of China[11178006] ; National Natural Science Foundation of China[11673071] ; National Natural Science Foundation of China[11273066] ; National Natural Science Foundation of China[11603072] ; National Natural Science Foundation of China[11727806]
项目资助者National Natural Science Foundation of China[11178006, 11673071, 11273066, 11603072, 11727806]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000485719800012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LUMINOSITY-RELATION ; CD-ROM ; PARALLAXES
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/20971
专题南方基地
中国科学院天体结构与演化重点实验室
作者单位1.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China;
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
推荐引用方式
GB/T 7714
Xia, Fang,Fu, Yanning,Wang XL. The Nearby Very Low Mass Triple Star LHS 1070[J]. ASTROPHYSICAL JOURNAL,2019,882(2):6.
APA Xia, Fang,Fu, Yanning,&Wang XL.(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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