Photometric solution and period analysis of the contact binary system AH Cnc
文献类型：期刊论文
| 作者 | Peng, Ying-Jiang1; Luo, Zhi-Quan1; Zhang, Xiao-Bin2 ; Deng, Li-Cai2; Wang, Kun2; Tian, Jian-Feng2; Yan, Zheng-Zhou2; Pan, Yang1; Fang, Wei-Jing1; Feng, Zhong-Wen4
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 16期号:10页码:157-U70 |
| 关键词 | methods: data analysis astronomical instrumentation binaries: eclipsing stars, close stars Galaxy: open clusters and associations: individual (M67) |
| 英文摘要 | Photometric observations of AH Cnc, a W UMa-type system in the open cluster M67, were carried out by using the 50BiN telescope. About 100 h of time-series B- and V-band data were taken, based on which eight new times of light minima were determined. By applying the Wilson-Devinney method, the light curves were modeled and a revised photometric solution of the binary system was derived. We confirmed that AH Cnc is a deep contact (f = 51%), low mass-ratio (q = 0.156) system. Adopting the distance modulus derived from study of the host cluster, we have re-calculated the physical parameters of the binary system, namely the masses and radii. The masses and radii of the two components were estimated to be respectively 1.188(+/- 0.061) M-circle dot, 1.332(+/- 0.063) R-circle dot for the primary component and 0.185(+/- 0.032) M-circle dot, 0.592(+/- 0.051) R-circle dot for the secondary. By adding the newly derived minimum timings to all the available data, the period variations of AH Cnc were studied. This shows that the orbital period of the binary is continuously increasing at a rate of dp/dt = 4.29 x 10(-10) d yr(-1). In addition to the long-term period increase, a cyclic variation with a period of 35.26 yr was determined, which could be attributed to an unresolved tertiary component of the system. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | OPEN CLUSTER M67 ; BLUE STRAGGLERS ; DEEP ; CANCRI ; STARS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385996000008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6905]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.China West Normal Univ, Phys & Space Sci Coll, Nanchong 637002, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 4.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Ying-Jiang,Luo, Zhi-Quan,Zhang, Xiao-Bin,et al. Photometric solution and period analysis of the contact binary system AH Cnc[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(10):157-U70. |
| APA | Peng, Ying-Jiang.,Luo, Zhi-Quan.,Zhang, Xiao-Bin.,Deng, Li-Cai.,Wang, Kun.,...&Deng Licai.(2016).Photometric solution and period analysis of the contact binary system AH Cnc.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(10),157-U70. |
| MLA | Peng, Ying-Jiang,et al."Photometric solution and period analysis of the contact binary system AH Cnc".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.10(2016):157-U70. |
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来源：国家天文台
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