Large-scale B-field in stationary accretion disks

被引：45

作者：

Bisnovatyi-Kogan, G. S. ^{[1
]}

Lovelace, R. V. E.

机构：

[1] Russian Acad Sci, Inst Space Res, Moscow V71, Russia

[2] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

来源：

ASTROPHYSICAL JOURNAL | 2007年 / 667卷 / 02期

关键词：

accretion; accretion disks; black hole physics; MHD;

D O I：

10.1086/522206

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reconsider the problem of the formation of a large-scale magnetic field in the accretion disks around black holes. In contrast with previous work we take into account the nonuniform vertical structure of the disk. The high electrical conductivity of the outer layers of the disk prevents the outward diffusion of the magnetic field. This implies a stationary state with a strong magnetic field in the inner parts of the accretion disk close to the black hole.

引用

页码：L167 / L169

页数：3

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