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Searching for orbital decay in a heartbeat star system KIC 3766353

文献类型：期刊论文

作者Ou, Jian-Wen5,6,7; Yu, Cong6,7; Jiang, Chen4; Yang, Ming3,5; Niu, Hubiao1,2
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2021-12-01
卷号508期号:3页码:3967-3974
ISSN号0035-8711
关键词methods: data analysis planet star interactions stars: individual: KIC 3766353 (KOI-6359)
DOI10.1093/mnras/stab2805
通讯作者Ou, Jian-Wen(oujw3@mail.sysu.edu.cn) ; Yu, Cong(yucong@mail.sysu.edu.cn)
英文摘要Theory suggests that the orbits of a large fraction of binary systems, including planet-star binary systems, shrink by a few orders of magnitude after formation. But so far, only one hot Jupiter with tidally driven orbital decay has been found by transit timing variations. We propose to search for orbital decay companions in heartbeat star systems because the orbital angular momentum is effectively transferred to the host star, causing tidal dissipation. KIC 3766353 is one of the heartbeat stars with tidally excited oscillations. We acquired the primary and the secondary eclipse time variations from the Kepler photometric light curves. Timing analysis shows that KIC 3766353 is a hierarchical triple system with a hidden third body and a red dwarf (mass 0.35 M-circle dot, radius 0.34 R-circle dot) in its inner orbit. The minimum mass of the third body is similar to 0.26 M-circle dot, and the distance from the inner orbital is similar to 111.4 R-circle dot. The period decay rate of the red dwarf is approximately 358 ms yr(-1). The combined effects of the light-traveltime and the orbital decay lead to the observed timing variations. Future monitoring with long-time baseline observations is required to delve into the contributions of these two effects.
WOS关键词TRANSIT TIMING VARIATIONS ; ECLIPSING BINARIES ; ROTATION ; PROJECT
资助项目National Key R&D Program of China[2020YFC2201200] ; National Natural Science Foundation of China[11803012] ; National Natural Science Foundation of China[11373064] ; National Natural Science Foundation of China[11521303] ; National Natural Science Foundation of China[11733010] ; National Natural Science Foundation of China[11873103] ; ChinaManned Space Project[CMS-CSST-2021B09] ; ChinaManned Space Project[CMS-CSST-2021-A10] ; Fundamental Research Funds for the Central Universities: Sun Yat-Sen University[20lgpy174] ; Fundamental Research Funds for the Central Universities: Nanjing University ; Youth Science and Technology Talent Development Project of Guizhou Education Department[KY2018421] ; Yunnan Natural Science Foundation[2014HB048] ; Yunnan Province[2017HC018] ; Max Planck Society
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000715888600058
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; ChinaManned Space Project ; Fundamental Research Funds for the Central Universities: Sun Yat-Sen University ; Fundamental Research Funds for the Central Universities: Nanjing University ; Youth Science and Technology Talent Development Project of Guizhou Education Department ; Yunnan Natural Science Foundation ; Yunnan Province ; Max Planck Society
源URL[http://ir.xao.ac.cn/handle/45760611-7/4380]  
专题新疆天文台_光学天文与技术应用研究室
通讯作者Ou, Jian-Wen; Yu, Cong
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
3.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China
4.Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany
5.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210023, Peoples R China
6.Sun Yat Sen Univ, CSST Sci Ctr Guangdong Hong Kong Macau Greater Ba, Zhuhai 519082, Peoples R China
7.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China
推荐引用方式
GB/T 7714		 Ou, Jian-Wen,Yu, Cong,Jiang, Chen,et al. Searching for orbital decay in a heartbeat star system KIC 3766353[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,508(3):3967-3974.
APA Ou, Jian-Wen,Yu, Cong,Jiang, Chen,Yang, Ming,&Niu, Hubiao.(2021).Searching for orbital decay in a heartbeat star system KIC 3766353.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,508(3),3967-3974.
MLA Ou, Jian-Wen,et al."Searching for orbital decay in a heartbeat star system KIC 3766353".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 508.3(2021):3967-3974.

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