Magnetic connection and current distribution in black hole accretion discs

被引：4

作者：

Zhao, Cheng-Xuan ^{[1
]}

Wang, Ding-Xiong ^{[1
]}

Gan, Zhao-Ming ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2009年 / 398卷 / 04期

基金：

中国国家自然科学基金;

关键词：

accretion; accretion discs; black hole physics; magnetic fields; stars: oscillations; QUASI-PERIODIC OSCILLATIONS; FORCE-FREE MAGNETOSPHERE; HIGH-FREQUENCY QPOS; EXTRACTING ENERGY; TOY MODEL; RESONANCE; SYSTEM; FIELD; SPIN; MASS;

D O I：

10.1111/j.1365-2966.2009.15017.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss one of the possible origins of large-scale magnetic fields based on a continuous distribution of toroidal electric current flowing in the inner region of the disc around a Kerr black hole (BH) in the framework of general relativity. It turns out that four types of configuration of the magnetic connection (MC) are generated, i.e. MC of the BH with the remote astrophysical load (MCHL), MC of the BH with the disc (MCHD), MC of the plunging region with the disc (MCPD) and MC of the inner and outer disc regions (MCDD). It turns out that the Blandford-Znajek process can be regarded as one type of MC, i.e. MCHL. In addition, we propose a scenario for fitting the quasi-periodic oscillations in BH binaries based on MCDD associated with the magnetic reconnection.

引用

页码：1886 / 1890

页数：5

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