On the period variation of the WUMa-type contact binary V502 Ophiuchi

doi:10.1088/1009-9271/6/3/08

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	On the period variation of the WUMa-type contact binary V502 Ophiuchi
	Liu QY(刘清耀); Yang YL(杨毓兰); Liu, QY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2006
卷号	6 期号:3 页码:331-337
DOI	10.1088/1009-9271/6/3/08
产权排序	第1完成单位
收录类别	SCI
关键词	Stars : Contact Binary Period Change Star : Individual : V502 Oph
摘要	The variation in the orbital period of the W UMa type contact binary V502 Oph is analyzed. The orbital period exhibits a wavelike variation with a periodicity of 23.0 years and an amplitude of Delta P = 1.24 x 10(-6) days superimposed on secular decrease of dP/dt = 1.68 x 10(-7) day per year. The long-term decrease may be accompanied by the contraction of the secondary at a rate of 83 m per year and a mass transfer rate from the primary to the secondary of 4.28 x 10(-8) M-. per year. The short-term oscillation may be explained by the presence of a third component. Orbital elements of the third body and its possible mass are presented.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1009-9271
URL	查看原文
归档日期	2006-08-07
WOS记录号	WOS:000238416500008
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	URSAE MAJORIS SYSTEMS ; PHOTOELECTRIC OBSERVATIONS ; STARS
引用统计	被引频次：5[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/114a53/4208
专题	其他
通讯作者	Liu, QY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位	National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
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	Liu QY,Yang YL,Liu, QY . On the period variation of the WUMa-type contact binary V502 Ophiuchi[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(3):331-337.
APA	Liu QY,Yang YL,&Liu, QY .(2006).On the period variation of the WUMa-type contact binary V502 Ophiuchi.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(3),331-337.
MLA	Liu QY,et al."On the period variation of the WUMa-type contact binary V502 Ophiuchi".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.3(2006):331-337.

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