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Generalized thermal instability criterion of black hole accretion disks
Wu, XB; Wu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
1998
发表期刊CHINESE PHYSICS LETTERS
ISSN0256-307X
卷号15期号:7页码:542-544
摘要The conventional thermal instability criterion cannot be applied to the advection-dominated accretion disks around black holes where the radiative cooling is insufficient to balance the viscous heating. The surface density change associated with the temperature perturbations, which was usually neglected in deriving the conventional criterion, was recently shown to be much significant in the advection-dominated disks. Considering both advection and surface density change, a generalized thermal instability criterion is suggested. By applying it to the optically thin and optically thick advection-dominated disks, it is found that the former one is thermally stable and the latter one is thermally unstable against short wavelength perturbations, which agrees well to those found recently by both analytic and quantitative stability analyses.
部门归属Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Binary-systems Advection Stability
学科领域Physics
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收录类别SCI
WOS记录号WOS:000075541400027
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12375
专题理论物理所1978-2010年知识产出
通讯作者Wu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
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GB/T 7714
Wu, XB,Wu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.. Generalized thermal instability criterion of black hole accretion disks[J]. CHINESE PHYSICS LETTERS,1998,15(7):542-544.
APA Wu, XB,&Wu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China..(1998).Generalized thermal instability criterion of black hole accretion disks.CHINESE PHYSICS LETTERS,15(7),542-544.
MLA Wu, XB,et al."Generalized thermal instability criterion of black hole accretion disks".CHINESE PHYSICS LETTERS 15.7(1998):542-544.
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