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arXiv 0905.4782astro-ph.COastro-ph.HE
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星系演化中的黑洞自旋特征

Signatures of black hole spin in galaxy evolution

David Garofalo

摘要:

我们探讨黑洞自旋和活动星系核功率之间的联系,解决的后果,在最近的文献中的假设,即吸积盘和黑洞之间的间隙区域是根本的产生强大的,自旋相关的,水平线程磁场。在附加的假设下,在AGN的喷流和外流产生的Blandford-Znajek和Blandford-Payne机制,我们表明,最大的喷流/外流功率达到吸积到黑洞具有高度逆行的自旋参数,一个充满活力的激发,但不稳定的引力磁配置。

英文摘要:

We explore the connection between black hole spin and AGN power by addressing the consequences underlying the assumption in the recent literature that the gap region between accretion disks and black holes is fundamental in producing strong, spin-dependent, horizon-threading magnetic fields. Under the additional assumption that jets and outflows in AGN are produced by the Blandford-Znajek and Blandford-Payne mechanisms, we show that maximum jet/outflow power is achieved for accretion onto black holes having highly retrograde spin parameter, an energetically excited yet unstable gravitomagnetic configuration.

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