On the non-synchronous rotation of binary systems?

	On the non-synchronous rotation of binary systems?
	Li ZX(李志雄)1,2 ; Huang RQ(黄润乾)1,2,3 ; Wang SM(王树民)1,3,4
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2014-06
卷号	57 期号:6 页码:1194-1200
关键词	stars: rotation stars: evolution stars: binaries
ISSN号	1674-7348
通讯作者	Li, ZX (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	During the evolution of the binary system, many physical processes occur, which can influence the orbital angular velocity and the spin angular velocities of the two components, and influence the non-synchronous or synchronous rotation of the system. These processes include the transfer of masses and angular momentums between the component stars, the loss of mass and angular momentum via stellar winds, and the deformation of the structure of component stars. A study of these processes indicates that they are closely related to the combined effects of tide and rotation. This means, to study the synchronous or non-synchronous rotation of binary systems, one has to consider the contributions of different physical processes simultaneously, instead of the tidal effect alone. A way to know whether the rotation of a binary system is synchronous or non-synchronous is to calculate the orbital angular velocity and the spin angular velocities of the component stars. If all of these angular velocities are equal, the rotation of the system is synchronous. If not, the rotation of the system is non-synchronous. For this aim, a series of equations are developed to calculate the orbital and spin angular velocities. The evolutionary calculation of a binary system with masses of 10M (aS (TM)) + 6M (aS (TM)) shows that the transfer of masses and angular momentums between the two components, and the deformation of the components structure in the semidetached or in the contact phase can change the rotation of the system from synchronous into non-synchronous rotation.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
分类号	P14
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	STELLAR EVOLUTION ; MAGNETIC-FIELDS ; DIFFERENTIAL ROTATION ; MASSIVE STARS ; INTERIOR
收录类别	SCI ; EI
原文出处	http://link.springer.com/article/10.1007%2Fs11433-014-5457-6
语种	英语
WOS记录号	WOS:000335659600021
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5239]
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.Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China 2.Department of Physics, Yunnan University, Kunming, 650091, China 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China 4.Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Li ZX,Huang RQ,Wang SM. On the non-synchronous rotation of binary systems?[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2014,57(6):1194-1200.
APA	Li ZX,Huang RQ,&Wang SM.(2014).On the non-synchronous rotation of binary systems?.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,57(6),1194-1200.
MLA	Li ZX,et al."On the non-synchronous rotation of binary systems?".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 57.6(2014):1194-1200.