A mechanism for orbital period modulation and irregular orbital period variations in close binaries

	A mechanism for orbital period modulation and irregular orbital period variations in close binaries
	Yuan JZ(袁金照)1,2 ; Qian SB(钱声帮)1
刊名	ASTROPHYSICAL JOURNAL
	2007-11-10
卷号	669 期号:2 页码:L93-L95
关键词	binaries : close stars : activity stars : magnetic fields
ISSN号	0004-637X
通讯作者	Yuan, JZ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Orbital period modulation is observed in many magnetically active close binaries. It can be explained by magnetic connection between two stars. Magnetic connection produces weak force between the two stars. As the magnetic field varies periodically, the orbital period also shows cyclical variations. The mechanism can also be used to explain irregular orbital period variations and orbital period jumps. The mean surface magnetic strength is calculated by using the Radia package, which is dedicated to 3D magnetostatics computation. On the basis of the results, a practical equation is given to calculate surface magnetic strength.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RT-CORONAE-BOREALIS ; ALGOL-TYPE BINARIES ; ECLIPSING BINARIES ; TY BOOTIS ; RW-TAURI ; CG-CYG ; PARAMETERS ; DRACONIS ; LIGHT ; HERCULIS
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-4357/669/2/L93/
语种	英语
WOS记录号	WOS:000250760600009
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5795]
专题	云南天文台_双星与变星研究组
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China 2.Graduate School of the Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Yuan JZ,Qian SB. A mechanism for orbital period modulation and irregular orbital period variations in close binaries[J]. ASTROPHYSICAL JOURNAL,2007,669(2):L93-L95.
APA	Yuan JZ,&Qian SB.(2007).A mechanism for orbital period modulation and irregular orbital period variations in close binaries.ASTROPHYSICAL JOURNAL,669(2),L93-L95.
MLA	Yuan JZ,et al."A mechanism for orbital period modulation and irregular orbital period variations in close binaries".ASTROPHYSICAL JOURNAL 669.2(2007):L93-L95.