Contact binaries: I. An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations

doi:10.1007/s11433-012-4627-7

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	Contact binaries: I. An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations
	Luo CQ(罗常青)1,2,3 ; Huang RQ(黄润乾)1,2 ; Luo, CQ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2012-03
卷号	55 期号:3 页码:553-560
DOI	10.1007/s11433-012-4627-7
分类号	P141
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Stars: Binaries Stars: Evolution Binaries: Eclipsing
摘要	The light curve is one of the most important photometric characteristics of variable stars, which can supply physical information about many stars. So, light curves are the best candidate to inspect a theoretical model of binaries. One important feature of the light curve is the difference of two light minima of the light curve, namely the difference between the primary eclipse depth and the secondary eclipse depth (DED). In this paper, the secondary eclipse depths of theoretical and observational light curves are studied. Firstly, a method to calculate the theoretical light curves of an eclipsing binary with non-spherical components is proposed, which can be put into the HSB contact binary model [Huang R Q, et al. Chin J Astron Astrophys, 2007, 7: 235-244; Song H F, et al. Chin J Astron Astrophys, 2007, 7: 539-550]. Theoretical light curves and the DED of the binary can be obtained at every evolutionary phase. The relationships of DED with mass and luminosity are presented and show special features for the contact binaries. Secondly, a large amount of observational data is collected, from which 11 massive, intermediate-mass contact binaries and 9 low-mass contact binaries are chosen and the two relationships are obtained using theoretical light curves. Finally, in order to check whether the HSB contact binary model can be used in contact binary systems with massive, intermediate-mass and low-mass components, a comparison is performed for the above mentioned relationships obtained from theoretical light curves with those from the astronomical observations. The results show a good agreement for contact binary systems with all different masses.
项目资助者	National Natural Science Foundation of China [10933002]
语种	英语
学科领域	Physics
文章类型	Article
ISSN	1674-7348
URL	查看原文
WOS记录号	WOS:000301850100027
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
关键词[WOS]	URSAE MAJORIS SYSTEMS ; PHOTOELECTRIC OBSERVATIONS ; PHYSICAL PARAMETERS ; MARGINAL CONTACT ; ANGULAR-MOMENTUM ; EVOLUTION ; STARS ; STABILITY ; PERIOD ; PHOTOMETRY
引用统计	被引频次：1[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/114a53/5223
专题	恒星物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Luo, CQ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China 3.Graduate University of Chinese Academy of Sciences, Beijing, 100049, 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	Luo CQ,Huang RQ,Luo, CQ . Contact binaries: I. An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(3):553-560.
APA	Luo CQ,Huang RQ,&Luo, CQ .(2012).Contact binaries: I. An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(3),553-560.
MLA	Luo CQ,et al."Contact binaries: I. An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.3(2012):553-560.

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