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Dwarf novae in quiescence: the relationship between disk evaporation and accretion onto a white-dwarf
Liu FK(刘复坤)1,2; MEYER, F1; MEYERHOFMEISTER, E1
发表期刊ASTRONOMY & ASTROPHYSICS
1995-08
卷号300期号:3页码:823-833
产权排序第2完成单位
收录类别SCI
关键词Accretion White Dwarfs Accretion Disk Cataclysmic Variables Stars Coronae X-rays Stars Ultraviolet Stars
摘要We investigate the structure of the corona above the cool accretion disk in a cataclysmic binary system. As already shown in an earlier investigation material flows from the disk through the corona on to the compact star, thus evaporating the accretion disk and creating a hole around the white dwarf. In the present work we study in detail how effective the evaporation works at different distances from the white dwarf. A one-zone model was used as before, because the most important changes happen close to the inner edge of the disk.We discuss the link between the rotating accretion disk corona and the thermal boundary layer close to the white dwarf. The physics of the thermal layer has similarity with the layer at the bottom of the accretion disk corona, where the temperature rises from photospheric to coronal values. For the white dwarf boundary layer gravity has to be taken into account. The. vertical structure is computed. The material accreting via the disk corona on to the white dwarf causes the X-rays and UV radiation observed from dwarf novae during quiescience.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
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WOS记录号WOS:A1995RR43900019
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BOUNDARY-LAYER
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被引频次:42[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/114a53/6898
专题星系研究组
作者单位1.Max-Planck-Institut fur Astrophysik, Karl-Schwarzschild-Str. 1, D-85740 Garching bei Munchen, Germany
2.Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
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Liu FK,MEYER, F,MEYERHOFMEISTER, E. Dwarf novae in quiescence: the relationship between disk evaporation and accretion onto a white-dwarf[J]. ASTRONOMY & ASTROPHYSICS,1995,300(3):823-833.
APA Liu FK,MEYER, F,&MEYERHOFMEISTER, E.(1995).Dwarf novae in quiescence: the relationship between disk evaporation and accretion onto a white-dwarf.ASTRONOMY & ASTROPHYSICS,300(3),823-833.
MLA Liu FK,et al."Dwarf novae in quiescence: the relationship between disk evaporation and accretion onto a white-dwarf".ASTRONOMY & ASTROPHYSICS 300.3(1995):823-833.
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