Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris

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	Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris
	Liu QY(刘清耀)1,2 ; LIU, QY
发表期刊	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	1993-10
卷号	101 期号:1 页码:49-57
产权排序	第2完成单位
收录类别	SCI
关键词	Eclipsing Binary Uvby Photometry Photometric Solutions Binary Activity
摘要	This paper presents complete uvby light curves and photometric solutions for the short-period eclipsing binary V Crateris (P = 0.702 day). The previously reported orbital eccentricity is not confirmed. The asymmetry and nightly variability of the light curves suggest that V Crt is an active spotted binary. An extensive search for a reliable mass ratio q was carried out using the 1992 version of the Wilson-Devinney program. The solutions of the uvby light curves indicate that V Crt is a semi-detached system with the secondary component filling its Roche lobe. The asymmetric appearance of the light curves can be explained by introducing a cool spot on one side of the secondary component. The astrophysical parameters of the individual components of the system have been derived by combining the observed uvbybeta photometry with the photometric solution. These parameters suggest that both components are slightly evolved main-sequence stars. V Crt has several of the characteristics of the group of short-period Algol binaries and may be an example of case A mass transfer.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0365-0138
URL	查看原文
WOS记录号	WOS:A1993MA98800003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	EMPIRICAL CALIBRATIONS ; BETA-SYSTEMS ; STARS ; MASSES ; UVBY
引用统计	被引频次：3[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/114a53/4057
专题	其他
通讯作者	LIU, QY
作者单位	1.Copenhagen University Observaotry, Brofeldevej 23, DK-4340 Tollose, Denmark 2.Yunnan Observatory, P.O. Box 110, Kunming, 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	Liu QY,LIU, QY. Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1993,101(1):49-57.
APA	Liu QY,&LIU, QY.(1993).Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,101(1),49-57.
MLA	Liu QY,et al."Four-Colour Photometric Study of the Short-Period Eclipsing Binary V-Crateris".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 101.1(1993):49-57.

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