Stability and energetics of mass transfer in double white dwarfs
文献类型：期刊论文
| 作者 | Han ZW(韩占文)1,2,3 ; Webbink, RF4; Han, ZW
|
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 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 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Han, ZW |
| 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 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 |
| 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. |
入库方式： OAI收割
来源：云南天文台
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