Stability and energetics of mass transfer in double white dwarfs

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	Stability and energetics of mass transfer in double white dwarfs
	Han ZW(韩占文)1,2,3 ; Webbink, RF 4; Han, ZW
发表期刊	ASTRONOMY & ASTROPHYSICS
	1999-09
卷号	349 期号:1 页码:L17-L20
产权排序	第1完成单位
收录类别	SCI
关键词	Instabilities Stars : Binaries : Close Stars : White Dwarfs
摘要	The donor star in an interacting double white dwarf lies deep within the potential well of the accretor, a condition which both alters the minimum mass transfer rate needed to generate an Eddington luminosity, and limits the fraction of matter which can be driven from the binary in a super-Eddington wind. That mass loss itself alters the threshold condition for the onset of dynamical instability of the donor star. We show that, unless the mass of the accreting star is extremely near the Chandrasekhar limit, a significant fraction (exceeding 0.5 for accretors of mass < 1M(.)) must be retained, even when the; nominal accretion luminosity far exceeds the Eddington limit. In super-Eddington accretion, the accreted envelope almost certainly extends beyond the orbit of the donor, and will trigger white dwarf merger in a common envelope.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Letter
ISSN	0004-6361
URL	查看原文
WOS记录号	WOS:000082912500005
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	GRAVITATIONAL-RADIATION ; I SUPERNOVAE ; BINARIES ; STARS ; APPROXIMATIONS
引用统计	被引频次：58[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/114a53/4389
专题	大样本恒星演化研究组
通讯作者	Han, ZW
作者单位	1.Yunnan Observatory, Academia Sinica, Kunming, 650011, P.R. China 2.National Astronomical Observatories, Chinese Academy of Sciences 3.Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA, UK 4.Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA
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	Han ZW,Webbink, RF,Han, ZW. Stability and energetics of mass transfer in double white dwarfs[J]. ASTRONOMY & ASTROPHYSICS,1999,349(1):L17-L20.
APA	Han ZW,Webbink, RF,&Han, ZW.(1999).Stability and energetics of mass transfer in double white dwarfs.ASTRONOMY & ASTROPHYSICS,349(1),L17-L20.
MLA	Han ZW,et al."Stability and energetics of mass transfer in double white dwarfs".ASTRONOMY & ASTROPHYSICS 349.1(1999):L17-L20.

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Stability and energe（107KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文