Contact binaries: II. The importance of deformation caused by rotation and tides to the light curve of a contact binary

	Contact binaries: II. The importance of deformation caused by rotation and tides to the light curve of a contact binary
	Luo CQ(罗常青)1,2,3 ; Huang RQ(黄润乾)1,2
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2012-05
卷号	55 期号:5 页码:899-906
关键词	stars: binaries stars: evolution binaries: eclipsing
ISSN号	1674-7348
通讯作者	Luo, CQ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	The theoretical light curves of contact binaries are calculated with and without putting in the contact binary evolution model. Firstly, we do not use the contact binary evolution model. A comparison of the light curve is performed with and without the deformation caused by rotation and tides. It shows that the light curve presents many differences, especially on the bottom and top. Secondly, we adopt the 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] and compute the theoretical light curve with and without rotational and tidal effects by studying three binary systems (with low-, intermediate- and high-mass components). The bottom and top of the theoretical light curves are discussed and compared to observations. The results show that taking into account the rotational effect has a better agreement with observations than without it. Therefore, the deformation of the light curve of contact binaries caused by rotation and tides is very important. Meanwhile, the rotational and tidal effect can advance the start of the semi-detached, contact phase and the time of mass-reversal.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
分类号	P153
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	PHOTOELECTRIC OBSERVATIONS ; STARS ; SYSTEMS ; EVOLUTION ; ULTRAVIOLET ; PARAMETERS ; COMPONENTS ; C-12/C-13 ; AURIGAE ; PERIOD
收录类别	SCI ; EI
原文出处	http://link.springer.com/article/10.1007%2Fs11433-012-4697-6
语种	英语
WOS记录号	WOS:000302769400024
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5221]
专题	云南天文台_恒星物理研究组云南天文台_中国科学院天体结构与演化重点实验室
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
推荐引用方式 GB/T 7714	Luo CQ,Huang RQ. Contact binaries: II. The importance of deformation caused by rotation and tides to the light curve of a contact binary[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(5):899-906.
APA	Luo CQ,&Huang RQ.(2012).Contact binaries: II. The importance of deformation caused by rotation and tides to the light curve of a contact binary.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(5),899-906.
MLA	Luo CQ,et al."Contact binaries: II. The importance of deformation caused by rotation and tides to the light curve of a contact binary".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.5(2012):899-906.