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Candidates of eclipsing multiples based on extraneous eclipses on binary light curves: KIC 7622486, KIC 7668648, KIC 7670485 and KIC 8938628
Zhang J(张嘉)1,2; Qian SB(钱声帮)1,2; He JD(和建朵)1,2; Zhang, Jia(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China)
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2017-02-01
卷号17期号:3
DOI10.1088/1674-4527/17/3/22
产权排序第1完成单位
收录类别SCI
关键词Binaries: Eclipsing Techniques: Photometric Methods: Observational
摘要Four candidates of eclipsing multiples, based on new extraneous eclipses found on Kepler binary light curves, are presented and studied. KIC 7622486 is a double eclipsing binary candidate with orbital periods of 2.2799960 d and 40.246503 d. The two binary systems do not eclipse each other in the line of sight, but there is mutual gravitational influence between them which leads to the small but definite eccentricity of 0.0035(0.0022) associated with the short 2.2799960 d period orbit. KIC 7668648 is a hierarchical quadruple system candidate, with two sets of solid 203 +/- 5 d period extraneous eclipses and another independent set of extraneous eclipses. A clear and credible extraneous eclipse is found on the binary light curve of KIC 7670485 which makes it a triple system candidate. Two sets of extraneous eclipses with periods of about 390 d and 220 d are found on KIC 8938628 binary curves, which not only confirm the previous conclusion of the 388.5 +/- 0.3 triple system, but also indicate new additional objects that make KIC 8938628 a hierarchical quadruple system candidate. The results from these four candidates will contribute to the field of eclipsing multiples.
项目资助者NASA Science Mission Directorate ; West Light Foundation of the Chinese Academy of Sciences ; Yunnan Natural Science Foundation(Y5XB071001) ; National Natural Science Foundation of China(11133007, 11325315) ; Key Research Program of the Chinese Academy of Sciences(KGZD-EW-603) ; Science Foundation of Yunnan Province(2012HC011) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences(XDB09010202)
语种英语
学科领域天文学
文章类型Article
ISSN1674-4527
URL查看原文
归档日期2017-05-23
WOS记录号WOS:000397210100001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ADDITIONAL COMPONENTS ; CONTACT BINARIES ; STAR LIGHT ; HIERARCHICAL TRIPLE ; VELOCITY CURVES ; TIDAL FRICTION ; DATA RELEASE ; KEPLER ; SYSTEMS ; PLANET
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9995
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Zhang, Jia(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
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Zhang J,Qian SB,He JD,et al. Candidates of eclipsing multiples based on extraneous eclipses on binary light curves: KIC 7622486, KIC 7668648, KIC 7670485 and KIC 8938628[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(3).
APA Zhang J,Qian SB,He JD,&Zhang, Jia.(2017).Candidates of eclipsing multiples based on extraneous eclipses on binary light curves: KIC 7622486, KIC 7668648, KIC 7670485 and KIC 8938628.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(3).
MLA Zhang J,et al."Candidates of eclipsing multiples based on extraneous eclipses on binary light curves: KIC 7622486, KIC 7668648, KIC 7670485 and KIC 8938628".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.3(2017).
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