中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
V802 aquilae: A short-period eclipsing binary with magnetic activity

文献类型:期刊论文

作者Yang, Yuan-Gui2,4; Qian SB(钱声帮)1,4; Zhu LY(朱俐颖)1,4; Liu L(刘亮)1,4; Nakajima, Kazuhiro3
刊名Publications of the Astronomical Society of Japan
出版日期2008
卷号60期号:4页码:803-808
关键词stars: binaries: close stars: binaries: eclipsing stars: individual (V802 Aquilae)
ISSN号0004-6264
DOI10.1093/pasj/60.4.803
产权排序第2完成单位
文献子类Article
英文摘要

New CCD observations for V802 Aql were observed from 2004 to 2007, and seven light minimum timings were obtained. Using the Wilson-Devinney code, the photometric solution was deduced from R-band observations. The results show that the mass-ratio and the contact degree are q = 0.1443 ± 0.0059 and f = 34.9% ± 7.6%, respectively. Comparing the parameters of the dark spot from our results with those from Samec et al., it is found that the magnetic activity of the primary component may have been migrating towards its equator from 2002 to 2005. An orbital period analysis weakly suggests that the orbital period may undergo a cyclic variation with a period of P3 = 8.32yr and an amplitude of A = 0.d0196. The periodic oscillation of this binary may be more plausibly explained as being the result of magnetic activity cycles. Therefore, the eclipsing star V802 Aql may be coalescing via magnetic breaking. © 2008. Astronomical Society of Japan.

学科主题天文学 ; 恒星与银河系
URL标识查看原文
WOS关键词PHYSICAL PARAMETERSLIGHT CURVESSYSTEMSCOMPONENTSSTARS
资助项目National Natural Science Foundation of China (NSFC)[10573032] ; Chinese Academy of Sciences[10778707] ; Chinese Academy of Sciences[O8ZKY11001]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000261225900014
出版者Astronomical Society of Japan
资助机构National Natural Science Foundation of China (NSFC)[10573032] ; Chinese Academy of Sciences[10778707, O8ZKY11001]
源URL[http://ir.ynao.ac.cn/handle/114a53/24854]  
专题云南天文台_双星与变星研究组
通讯作者Yang, Yuan-Gui
作者单位1.Yunnan Observatory, Chinese Academy of Sciences, 650011 Kunming, China;
2.Department of Physics, Huaibei Coal Industry Teachers College, 235000 Huaibei, Anhui, China;
3.VSOLJ, 1-13-4 Namiki, Kawaguchi, Saitama 332-0034, China
4.National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, China;
推荐引用方式
GB/T 7714
Yang, Yuan-Gui,Qian SB,Zhu LY,et al. V802 aquilae: A short-period eclipsing binary with magnetic activity[J]. Publications of the Astronomical Society of Japan,2008,60(4):803-808.
APA Yang, Yuan-Gui,Qian SB,Zhu LY,Liu L,&Nakajima, Kazuhiro.(2008).V802 aquilae: A short-period eclipsing binary with magnetic activity.Publications of the Astronomical Society of Japan,60(4),803-808.
MLA Yang, Yuan-Gui,et al."V802 aquilae: A short-period eclipsing binary with magnetic activity".Publications of the Astronomical Society of Japan 60.4(2008):803-808.

入库方式: OAI收割

来源:云南天文台

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