A period study of the near-contact binary IR Cassiopeiae

doi:10.1093/pasj/56.5.809

YNAO OpenIR > 双星与变星研究组

	A period study of the near-contact binary IR Cassiopeiae
	Zhu LY(朱俐颖)1,2,4 ; Qian SB(钱声帮)1,2 ; Xiang, FY 3; Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
	2004
卷号	56 期号:5 页码:809-811
DOI	10.1093/pasj/56.5.809
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Stars : Binaries : Close Stars : Binaries : Eclipse Stars : Binaries : Individual (Ir Cassiopeiae)
摘要	The near-contact binary IR Cas was observed in 2003 October. Two new observed times of the primary minimum were derived. All of the available eclipse times, including the new ones, spanning 90 years were analyzed. It was shown that the period change of the system is very complex. A period oscillation with a period of 53.24 years and an amplitude of about 0.0133 days were found, while it undergoes a secular decrease at a rate of dP/dt = -1.18 x 10(-7)(+/- 0.09)dyr(-1). The mechanisms that could explain the period changes and the evolutionary state of the system are discussed.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6264
URL	查看原文
归档日期	2005-03-01
WOS记录号	WOS:000225043600009
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ORBITAL PERIOD ; CLOSE BINARIES ; MODULATION ; MASS
EI入藏号	20215111358918
EI主题词	Stars
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5772
专题	双星与变星研究组
通讯作者	Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, P. R. China 3.Physics Department, Xiangtan University, 411105 Xiangtan, Hunan Province, P. R. China 4.Graduate School of the Chinese Academy of Sciences, P. R. China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Zhu LY,Qian SB,Xiang, FY,et al. A period study of the near-contact binary IR Cassiopeiae[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2004,56(5):809-811.
APA	Zhu LY,Qian SB,Xiang, FY,&Zhu, LY .(2004).A period study of the near-contact binary IR Cassiopeiae.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,56(5),809-811.
MLA	Zhu LY,et al."A period study of the near-contact binary IR Cassiopeiae".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 56.5(2004):809-811.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
A Period Study of th（413KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文