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arXiv 1003.4404astro-ph.CO
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超大质量黑洞的形成

Formation of Supermassive Black Holes

Marta Volonteri

摘要:

有证据表明大质量的黑洞存在于大多数的本地星系中。研究还建立了MBH质量和宿主星系的性质之间的一些关系,如膨胀质量和速度色散。这些结果表明,中央MBH的质量虽然比宿主小得多(约0.1%),但与星系结构的演化有关。在等级宇宙学中,今天的一个大星系可以追溯到它被分成数百个较小组成部分的阶段。MBH种子在小的原星系中是否以同样的效率形成,或者它们的形成必须等待具有更深势阱的实质性星系的积累?我在这里简要地回顾一些有利于大质量黑洞种群演化的物理过程。我将讨论黑洞形成过程的“种子”黑洞,可能会在早期宇宙时代,和可能的观测测试这些情况。

英文摘要:

Evidence shows that massive black holes reside in most local galaxies. Studies have also established a number of relations between the MBH mass and properties of the host galaxy such as bulge mass and velocity dispersion. These results suggest that central MBHs, while much less massive than the host (~ 0.1%), are linked to the evolution of galactic structure. In hierarchical cosmologies, a single big galaxy today can be traced back to the stage when it was split up in hundreds of smaller components. Did MBH seeds form with the same efficiency in small proto-galaxies, or did their formation had to await the buildup of substantial galaxies with deeper potential wells? I briefly review here some of the physical processes that are conducive to the evolution of the massive black hole population. I will discuss black hole formation processes for `seed' black holes that are likely to place at early cosmic epochs, and possible observational tests of these scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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