Revision of the photometric parameters of BS Cassiopeiae
文献类型：期刊论文
| 作者 | He JJ(何家佳)1,2,3 ; Qian SB(钱声帮)1,2,3; Zejda, M4; Mikulasek, Z4,5
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2010-06 |
| 卷号 | 10期号:6页码:569-576 |
| 关键词 | stars: binaries: close stars: binaries: eclipsing stars: individual: BS Cas |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | He, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China. |
| 英文摘要 | Seven charge-coupled device (CCD) photometric times of light minimum of the overcontact binary BS Cas which were obtained from 2007 August to November and one CCD light curve in the R band which was observed on 2007 September 24 and October 15, are presented. It is found that the light curve of BS Cas has characteristics like a typical EW-type light variation. The light curve obtained by us is symmetric and shows total eclipses, which is very useful for determining photometric parameters with high precision. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney code. It shows that BS Cas is a W-subtype overcontact binary (f = 27.5% +/- 0.4%) with a mass ratio of q = 2.7188 +/- 0.0040. The temperature difference between the two components is 190 K. Analysis of the O-C curve suggests that the period of AE Phe shows a long-term continuous decrease at a rate of dP/dt = -2.45 x 10(-7) d yr(-1). The long-time period decrease can be explained by mass transfer from the primary to the secondary. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ECLIPSING BINARY ; STARS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1674-4527/10/6/006/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000279087400006 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5840]  |
| 专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 4.Institute of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic 5.Observatory and Planetarium of J. Palisa, VŠB- Technical University, Ostrava, Czech Republic |
| 推荐引用方式 GB/T 7714 | He JJ,Qian SB,Zejda, M,et al. Revision of the photometric parameters of BS Cassiopeiae[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(6):569-576. |
| APA | He JJ,Qian SB,Zejda, M,&Mikulasek, Z.(2010).Revision of the photometric parameters of BS Cassiopeiae.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(6),569-576. |
| MLA | He JJ,et al."Revision of the photometric parameters of BS Cassiopeiae".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.6(2010):569-576. |
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来源：云南天文台
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