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Wu, XB; Wu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
Generalized thermal instability criterion of black hole accretion disks
Source PublicationCHINESE PHYSICS LETTERS
KeywordBinary-systems Advection Stability
AbstractThe 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.
1998
ISSN0256-307X
Volume15Issue:7Pages:542-544
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12375
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWu, XB , Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China.
Recommended Citation
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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