Photometric study of AH Cancri, a WUMa-type system in M67
文献类型：期刊论文
| 作者 | Zhang, XB ; Zhang, RX; Deng, L
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2005-02-01 |
| 卷号 | 129期号:2页码:979-984 |
| 关键词 | binaries : eclipsing open clusters and associations : individual (M67) stars : individual (AH Cancri) stars : variables : other |
| 英文摘要 | We present time-series CCD photometry of AH Cnc, a W UMa-type binary system in the old open cluster M67. Over 3500 measurements in two filters were recorded on 15 nights from 2001 to 2004. From the data, 17 new times of minima for the eclipsing binary were obtained, from which a new ephemeris was derived. The orbital period of the system is refined as 0.36045754 days. A photometric analysis for the obtained light curves is performed based on the Wilson-Devinney code. The photometric solutions reveal a totally eclipsing contact configuration for AH Cnc. The photometric mass ratio is determined to be 0.149 +/- 0.002. The masses and radii of the components are estimated as 1.21 +/- 0.08 M-circle dot and 1.36 +/- 0.03 R-circle dot for the primary and 0.18 +/- 0.02 M-circle dot and 0.62 +/- 0.02 R-circle dot for the secondary, respectively. The evolutionary status of the contact system is briefly discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000226852900031 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7028]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, XB,Zhang, RX,Deng, L. Photometric study of AH Cancri, a WUMa-type system in M67[J]. ASTRONOMICAL JOURNAL,2005,129(2):979-984. |
| APA | Zhang, XB,Zhang, RX,&Deng, L.(2005).Photometric study of AH Cancri, a WUMa-type system in M67.ASTRONOMICAL JOURNAL,129(2),979-984. |
| MLA | Zhang, XB,et al."Photometric study of AH Cancri, a WUMa-type system in M67".ASTRONOMICAL JOURNAL 129.2(2005):979-984. |
入库方式： OAI收割
来源：国家天文台
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