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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
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
1989
卷号11期号:3页码:319-328
DOI10.1088/0253-6102/11/3/319
产权排序第3完成单位
收录类别SCI
摘要The 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.
语种英语
学科领域Physics
文章类型Article
ISSN0253-6102
URL查看原文
WOS记录号WOS:A1989AN05900009
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6921
专题星系研究组
通讯作者YANG, LT
作者单位1.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
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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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