RV Piscium: a marginal contact binary system | |
He JJ(何家佳)1,2,3; Qian SB(钱声帮)1,2,3; He, JJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. | |
发表期刊 | ASTROPHYSICS AND SPACE SCIENCE |
2009-06 | |
卷号 | 321期号:3-4页码:209-215 |
DOI | 10.1007/s10509-009-0030-x |
产权排序 | 第1完成单位 |
收录类别 | SCI |
关键词 | Stars Binaries: Close Stars Binaries: Eclipsing Stars Individual (Rv Psc) Stars Evolution |
摘要 | The first complete charge-coupled device (CCD) light curves in B and V bands of the short-period binary system, RV Psc, are presented. It is found that the light curves of RV Psc are symmetric and belong to the EW type rather than the EA type as described in the 4th edition of the GCVS. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney (W-D) method. It is shown that RV Psc is a marginal contact system (f=5.8%+/- 6.6%) with a mass ratio of q=0.5978 +/- 0.0096. The temperature difference between both components is only 17 K. Analysis of the O-C curve suggests that the period of RV Psc shows a long-term continuous decrease at a rate of dP/dt=-5.89x10(-8) days/year. The long-time period decrease, the marginal-contact configuration, and the astrophysical parameters of the binary system, all suggest that it is a newly formed marginal contact binary from a case A mass transfer and will evolve into a normal overcontact binary. |
项目资助者 | Yunnan Natural Science Foundation [2005A0059M] ; Chinese Natural Science [10573032, 10433030] ; National Key Fundamental Research Project [2007CB815406] ; Chinese Academy of Sciences [O8ZKY11001] |
语种 | 英语 |
学科领域 | Astronomy & Astrophysics |
文章类型 | Article |
ISSN | 0004-640X |
URL | 查看原文 |
归档日期 | 2009-06-02 |
WOS记录号 | WOS:000266372200007 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | STARS ; PERIOD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5822 |
专题 | 双星与变星研究组 |
通讯作者 | He, JJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011, Kunming, People’s Republic of China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012, Beijing, People’s Republic of China 3.Graduate University of the Chinese Academy of Sciences, 10049, Beijing, People’s Republic of China |
第一作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | He JJ,Qian SB,He, JJ . RV Piscium: a marginal contact binary system[J]. ASTROPHYSICS AND SPACE SCIENCE,2009,321(3-4):209-215. |
APA | He JJ,Qian SB,&He, JJ .(2009).RV Piscium: a marginal contact binary system.ASTROPHYSICS AND SPACE SCIENCE,321(3-4),209-215. |
MLA | He JJ,et al."RV Piscium: a marginal contact binary system".ASTROPHYSICS AND SPACE SCIENCE 321.3-4(2009):209-215. |
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RV Piscium_ a margin(566KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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