Institutional Repository of Optical Astronomy Research Laboratory
| KIC 5359678: a detached eclipsing binary with starspots | |
Wang, Jiaxin1; Fu, Jianning1; Niu, Hubiao1,2 ; Pan, Yang1; Li, Chunqian3,4; Zong, Weikai1; Hou, Yonghui4,5
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| 2021-07-01 | |
| Source Publication | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| ISSN | 0035-8711 |
| Volume | 504Issue:3Pages:4302-4311 |
| Contribution Rank | 2 |
| Abstract | We study the detached eclipsing binary, KIC 5359678, with starspot modulation using the high-quality Kepler photometry and LAMOST spectroscopy. The PHOEBE model, optimal for this binary, reveals that this system is a circular detached binary, composed of two F-type main-sequence stars. The masses and radii of the primary and the secondary are M-1 = 1.31 +/- 0.05 M-circle dot, R-1 = 1.52 +/- 0.04 R-circle dot, M-2 = 1.12 +/- 0.04 M-circle dot, and R-2 = 1.05 +/- 0.06 R-circle dot, respectively. The age of this binary is estimated to be about 2 Gyr, a value much longer than the synchronization time-scale of 17.8 Myr. The residuals of light curves show quasi-sinusoidal signals, which could be induced by starspots. We apply autocorrelation function analysis on the out-of-eclipse residuals and find that the spot with rotational period close to the orbital period, while, the decay time-scale of starspots is longer than that on the single stars with the same temperature, period range, and rms scatter. A two-starspot model is adopted to fit the signals with two-dip pattern, whose result shows that the longitude decreases with time. |
| Keyword | binaries: eclipsing stars: rotation starspots |
| DOI | 10.1093/mnras/stab1219 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DIFFERENTIAL ROTATION ; TIDAL SYNCHRONIZATION ; LAMOST OBSERVATIONS ; LIGHT CURVES ; II. ; I. ; PHYSICS ; EVOLUTION ; DATABASE ; CATALOG |
| Funding Project | National Natural Science Foundation of China (NSFC)[11833002] ; National Natural Science Foundation of China (NSFC)[12090040] ; National Natural Science Foundation of China (NSFC)[12090042] ; National Natural Science Foundation of China (NSFC)[11903005] ; National Development and Reform Commission ; Cultivation Project for LAMOST Scientific Payoff and Research Achievement of CAMS-CAS ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSWSLH007] ; Fundamental Research Funds for the Central Universities |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000656139300079 |
| Publisher | OXFORD UNIV PRESS |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; National Development and Reform Commission ; Cultivation Project for LAMOST Scientific Payoff and Research Achievement of CAMS-CAS ; Key Research Program of Frontier Sciences, CAS ; Fundamental Research Funds for the Central Universities |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4548 |
| Collection | 光学天文与技术应用研究室 |
| Corresponding Author | Fu, Jianning |
| Affiliation | 1.Beijing Normal Univ, Dept Astron, 19 XinJieKouWai St, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150,Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 10049, Peoples R China 5.Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Natl Astron Observ, Nanjing 210042, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Jiaxin,Fu, Jianning,Niu, Hubiao,et al. KIC 5359678: a detached eclipsing binary with starspots[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,504(3):4302-4311. |
| APA | Wang, Jiaxin.,Fu, Jianning.,Niu, Hubiao.,Pan, Yang.,Li, Chunqian.,...&Hou, Yonghui.(2021).KIC 5359678: a detached eclipsing binary with starspots.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,504(3),4302-4311. |
| MLA | Wang, Jiaxin,et al."KIC 5359678: a detached eclipsing binary with starspots".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 504.3(2021):4302-4311. |
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| Wang-2021-KIC 535967（3587KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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