Orbital Period Investigation of the RS CVn-Type Binary CG Cygni
文献类型：期刊论文
| 作者 | Shi, Xiao-Min1,2; Xiang, Fu-Yuan1,2 ; Lu, Ye1,2
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2012-12-25 |
| 卷号 | 64期号:6 |
| 关键词 | stars: binaries: eclipsing stars: binaries: orbital period stars: individual (CG Cygni) |
| ISSN号 | 0004-6264 |
| 通讯作者 | Shi, XM (reprint author), Xiangtan Univ, Dept Phys, Xiangtan 411105, Hunan, Peoples R China. |
| 英文摘要 | We collected all minima times of the RS CVn-type binary CG Cyg that we were able to find in the literature and databases. The orbital period variations of the system were examined by analyzing its O - C curves (1) through the weighted least-squares method, and (2) through the first continuous method. It was found that the results obtained from the two methods are different. We compared our results with the former author's work, and drew the orbital-period variation of CO Cyg, which indicates that it undergoes a long-term period increase at a rate of dP/dt = +2.48 x 10(-8) d yr(-1). We discuss the implications of the result regarding the link between the orbital-period variation and the mass transfer of the system. |
| 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] | TERM STARSPOT ACTIVITY ; CANUM-VENATICORUM STARS ; LIGHT CURVES ; ANDROMEDAE |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/64/6/121 |
| 语种 | 英语 |
| WOS记录号 | WOS:000313147700007 |
| 公开日期 | 2016-06-01 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9427]  |
| 专题 | 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.Department of Physics, Xiangtan University, Xiangtan 411105, Hunan Province, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, Yunnan Province, China |
| 推荐引用方式 GB/T 7714 | Shi, Xiao-Min,Xiang, Fu-Yuan,Lu, Ye. Orbital Period Investigation of the RS CVn-Type Binary CG Cygni[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2012,64(6). |
| APA | Shi, Xiao-Min,Xiang, Fu-Yuan,&Lu, Ye.(2012).Orbital Period Investigation of the RS CVn-Type Binary CG Cygni.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,64(6). |
| MLA | Shi, Xiao-Min,et al."Orbital Period Investigation of the RS CVn-Type Binary CG Cygni".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 64.6(2012). |
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来源：云南天文台
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