Revision of the photometric parameters of BS Cassiopeiae
文献类型：期刊论文
| 作者 | He Jiajia2; Qian Shengbang2; Miloslav Zejda1; Zdenek Mikulsek1 |
| 刊名 | Research in Astronomy and Astrophysics
 |
| 出版日期 | 2010 |
| 卷号 | 10期号:6页码:569 |
| ISSN号 | 1674-4527 |
| 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 = -2:45×10~(-7) d yr~(-1). The long-time period decrease can be explained by mass transfer from the primary to the secondary. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/43260]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院理论物理研究所 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | He Jiajia,Qian Shengbang,Miloslav Zejda,et al. Revision of the photometric parameters of BS Cassiopeiae[J]. Research in Astronomy and Astrophysics,2010,10(6):569. |
| APA | He Jiajia,Qian Shengbang,Miloslav Zejda,&Zdenek Mikulsek.(2010).Revision of the photometric parameters of BS Cassiopeiae.Research in Astronomy and Astrophysics,10(6),569. |
| MLA | He Jiajia,et al."Revision of the photometric parameters of BS Cassiopeiae".Research in Astronomy and Astrophysics 10.6(2010):569. |
入库方式： OAI收割
来源：国家天文台
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