中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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).

入库方式: OAI收割

来源:云南天文台

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