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The magnetic model of accretion disk and the overstability of radial oscillation
YANG, LT1,2; YANG, ZL1; Xie GZ(谢光中)3; LIU, C1; YANG, PB1
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
1989
Volume11Issue:3Pages:319-328
DOI10.1088/0253-6102/11/3/319
Contribution Rank第3完成单位
Indexed BySCI
AbstractThe authors put forward, the assumption of an magnetic model of an accretion disk with magnetic viscosity. Optically thick is the disk whose radiation is thermal in the outer region, while in the inner region it is optically thin and the radiation mechanism is synchrotron. From this they derive the general dispersion relation of the accretion disk for the radial oscillation and discuss the stability and overstability in each region of the disk. The conclusion, therefore, is reached that the accretion disk is globally stable and locally overstable. The global stability may avoid the break of the disk, and the local overstability can cause the optical variation on a short-time scale. Calculating the time scale and the magnitude of the variation caused by the overstability, the authors get the result which fits well the observed result of BL Lac objects.
Language英语
Subject AreaPhysics
SubtypeArticle
ISSN0253-6102
URL查看原文
WOS IDWOS:A1989AN05900009
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6921
Collection星系研究组
Corresponding AuthorYANG, LT
Affiliation1.Department of Physics, Huazhong Normal University, Wuhan
2.Center of Astronomy and Astrophysics, CCAST (World Laboratory), Beijing, China
3.Yunnan Observatory, Academia Sinica, Kunming, China
Recommended Citation
GB/T 7714
YANG, LT,YANG, ZL,Xie GZ,et al. The magnetic model of accretion disk and the overstability of radial oscillation[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1989,11(3):319-328.
APA YANG, LT,YANG, ZL,Xie GZ,LIU, C,&YANG, PB.(1989).The magnetic model of accretion disk and the overstability of radial oscillation.COMMUNICATIONS IN THEORETICAL PHYSICS,11(3),319-328.
MLA YANG, LT,et al."The magnetic model of accretion disk and the overstability of radial oscillation".COMMUNICATIONS IN THEORETICAL PHYSICS 11.3(1989):319-328.
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