Research on the Orbital Period of Massive Binaries

	Research on the Orbital Period of Massive Binaries
	Zhao EG(赵二刚); Qian SB(钱声帮)
	2012
会议名称	9th Pacific Rim Conference on Stellar Astrophysics
会议日期	2011-04-14
会议地点	Lijiang, PEOPLES R CHINA
卷号	451
页码	71-74
通讯作者	Zhao, EG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
英文摘要	Massive binary is the kind of binary, whose spectral type is earlier than B5. Research on massive binary plays an important role in the mass and angular momentum transfer or loss between the components, and the evolution of binary. Some massive binaries are observed and analyzed, including O-type binary LY Aur, B-type contact binary RZ Pyx and B-type semi-detached binary AI Cru. It is found that all of their periods have a long-term increasing, which indicates that the system is undergoing a Case A slow mass transfer stage on the nuclear time-scale of the secondary. Moreover, analysis show a cyclic change of orbital period, which can be explained by the light-travel effect time of the third body.
收录类别	CPCI
产权排序	第一完成单位
会议录	Astronomical Society of the Pacific (ASP) Conference Series - NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS
会议录出版者	ASTRONOMICAL SOC PACIFIC
会议录出版地	390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
学科主题	Astronomy & Astrophysics
语种	英语
ISBN号	978-1-58381-785-8
WOS记录号	WOS:000304126300012
研究领域[WOS]	Astronomy & Astrophysics
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5954]
专题	云南天文台_双星与变星研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
推荐引用方式 GB/T 7714	Zhao EG,Qian SB. Research on the Orbital Period of Massive Binaries[C]. 见:9th Pacific Rim Conference on Stellar Astrophysics. Lijiang, PEOPLES R CHINA. 2011-04-14.