The radial-azimuthal instability of a radiation-pressure-dominated accretion disk with advection

被引：0

作者：

Ding, SX ^{[1
]}

Yang, LT

Wu, XB

机构：

[1] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China

[2] Huazhong Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China

[3] Xiangyang Teachers Coll, Dept Phys, Xiangfan 441053, Peoples R China

[4] Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2000年 / 33卷 / 04期

关键词：

accretion; accretion disks; instability; advection;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A radial-azimuthal instability analysis of a radiation-pressure-dominated accretion disk with advection is presented. We find that the including of a very little advection has significant effect on two acoustic modes, which are no longer complex conjugates of each. other. With the increase of azimuthal perturbations, the thermal mode becomes more unstable and the viscous mode more stable, but there has no effect on acoustic mode. For geometrically slim and advection-dominated disks, the azimuthal perturbation and increasing of advection do not affect the stability of all the modes.

引用

页码：655 / 660

页数：6