Miller 2009 黑洞自旋的获得

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Astro 2010 Science White Paper

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Title:		Stellar-Mass Black Holes and Their Progenitors
Authors:		Miller, J. M.; Uttley, P.; Nandra, K.; Barret, D.; Matt, G.; Paerels, F.; Mendez, M.; Diaz Trigo, M.; Cappi, M.; Kitamoto, S.; Nowak, M.; Wilms, J.; Rothschild, R.; Smith, R.; Weisskopf, M.; Terashima, Y.; Ueda, Y.
Publication:		eprint arXiv:0902.4677
Publication Date:		02/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Comment:		Astro 2010 Science White Paper
Bibliographic Code:		2009arXiv0902.4677M

Abstract

If a black hole has a low spin value, it must double its mass to reach a high spin parameter. Although this is easily accomplished through mergers or accretion in the case of supermassive black holes in galactic centers, it is impossible for stellar-mass black holes in X-ray binaries. Thus, the spin distribution of stellar-mass black holes is almost pristine, largely reflective of the angular momentum imparted at the time of their creation. This fact can help provide insights on two fundamental questions: What is the nature of the central engine in supernovae and gamma-ray bursts? and What was the spin distribution of the first black holes in the universe?

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