The first photometric analysis of the totally eclipsing contact binary V811 Cep
文献类型：期刊论文
| 作者 | Gao, Xiang3; Li, Kai3; Gao, Xing2; Liu, Yuan1 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 21期号:8页码:7 |
| ISSN号 | 1674-4527 |
| 关键词 | binaries: close binaries: eclipsing stars: evolution stars: individual (V811 Cep) |
| DOI | 10.1088/1674-4527/21/8/193 |
| 通讯作者 | Li, Kai(kaili@sdu.edu.cn) |
| 英文摘要 | The first photometric analysis of V811 Cep was carried out. The first complete light curves of V, R and I bands are given. The analysis was carried out by the Wilson-Devinney (W-D) program, and the results show that V811 Cep is a median-contact binary (f = 33.9(+/- 4.9)%) with a mass ratio of 0.285. It is a W-subtype contact binary, that is, the component with less mass is hotter than the component with more mass, and the light curves are asymmetric (O'Connell effect), which can be explained by the existence of a hot spot on the component with less mass. The orbital inclination is i = 88.3 degrees, indicating that it is a totally eclipsing binary, so the parameters obtained are reliable. Through the O-C analyzing, it is found that the orbital period decreases at the rate of (P) over dot = -3.90(+/- 0.06) x 10(-7)d yr(-1), which indicates that the mass transfer occurs from the more massive component to the less massive one. |
| WOS关键词 | LIGHT CURVES ; STAR LIGHT ; CATALOG ; UMA |
| 资助项目 | National Natural Science Foundation of China (NSFC)[U1931103] ; Chinese Academy of Sciences (CAS)[U1931103] ; NSFC[11703016] ; Young Scholars Program of Shandong University, Weihai[20820171006] ; Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201704] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| WOS记录号 | WOS:000711656500001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) ; NSFC ; Young Scholars Program of Shandong University, Weihai ; Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4301]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Li, Kai |
| 作者单位 | 1.Qilu Inst Technol, Jinan 250200, Peoples R China 2.Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Xiang,Li, Kai,Gao, Xing,et al. The first photometric analysis of the totally eclipsing contact binary V811 Cep[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(8):7. |
| APA | Gao, Xiang,Li, Kai,Gao, Xing,&Liu, Yuan.(2021).The first photometric analysis of the totally eclipsing contact binary V811 Cep.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(8),7. |
| MLA | Gao, Xiang,et al."The first photometric analysis of the totally eclipsing contact binary V811 Cep".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.8(2021):7. |
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