Stability and energetics of mass transfer in double white dwarfs

	Stability and energetics of mass transfer in double white dwarfs
	Han ZW(韩占文)1,2,3 ; Webbink, RF 4; Han, ZW
刊名	ASTRONOMY & ASTROPHYSICS
	1999-09
卷号	349 期号:1 页码:L17-L20
关键词	instabilities stars : binaries : close stars : white dwarfs
ISSN号	0004-6361
通讯作者	Han, ZW
产权排序	第一完成单位
英文摘要	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.
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]	GRAVITATIONAL-RADIATION ; I SUPERNOVAE ; BINARIES ; STARS ; APPROXIMATIONS
收录类别	SCI
原文出处	http://adsabs.harvard.edu/abs/1999A%26A...349L..17H
语种	英语
WOS记录号	WOS:000082912500005
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4389]
专题	云南天文台_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
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.