Star-spots activity on BH virginis

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	Star-spots activity on BH virginis
	Xiang, FY 1; Deng, SF 1; Liu QY(刘清耀)2
刊名	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	2000-10
卷号	146 期号:1 页码:7-12
关键词	stars : eclipsing binaries stars : star-spots
ISSN号	0365-0138
通讯作者	Xiang, FY
产权排序	第二完成单位
英文摘要	Virginis is a short-period RS CVn system. From our observations and archival sources we have gained an ephemeris by means of the times of minima. The light curves and the photoelectric observations in B and V obtained by Koch (1967) have been analyzed by using the Wilson-Devinney program. The principal results are as follows: (1) The mass ratio obtained from the photoelectric light curves is q = m(2)/m(1) = 0.967, close to the spectroscopic value 0.968 obtained by Zhai et al. (1990). (2) The photospheric temperature of the primary, T-1, at two epochs (1963-1964 and 1991) was about; 5945 K - 6010 K. (3) Several spotted active regions are revealed on both components in 1963-1964. data sets, while only one small spotted active region appears on the secondary star in 1991.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RS CANUM VENATICORUM ; LIGHT CURVES ; BINARY
收录类别	SCI
原文出处	http://aas.aanda.org/articles/aas/abs/2000/16/ds5258/ds5258.html
语种	英语
WOS记录号	WOS:000090075600002
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/3994]
专题	云南天文台_其他
作者单位	1.Physics Department of Xiangtan University, Xiangtan, Hunan, P.R.C. 411105, PR China 2.Yunnan observatory, Chinese Academy of Sciences, Kunming, Yunnan, PR China
推荐引用方式 GB/T 7714	Xiang, FY,Deng, SF,Liu QY. Star-spots activity on BH virginis[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,2000,146(1):7-12.
APA	Xiang, FY,Deng, SF,&Liu QY.(2000).Star-spots activity on BH virginis.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,146(1),7-12.
MLA	Xiang, FY,et al."Star-spots activity on BH virginis".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 146.1(2000):7-12.