Spin and Relativistic Phenomena Around Black Holes

Details Spin and Relativistic Phenomena Around Black Holes Spin and Relativistic Phenomena Around Black Holes

2009-02-26

arxiv.org/abs/0902.4691v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Astro 2010 Science White Paper

Scientific paper

Since the seminal work of Penrose (1969) and Blandford & Znajek (1977), it has been realized that black hole spin may be an important energy source in astrophysics. The radio-loud/radio-quiet dichotomy in the AGN population is usually attributed to differences in black hole spin, with correlations between black hole spin and host galaxy morphology being hypothesized in order to explain why radio-loud AGN occur in early-type galaxies. X-ray observations are uniquely able to answer: Does black hole spin play a crucial role in powering relativistic jets such as those seen from radio-loud active galactic nuclei (AGN), Galactic microquasars, and Gamma-Ray Bursts? Indeed, the importance of black hole spin goes beyond its role as a possible power source: the spin of a supermassive black hole is a fossil record of its formation and subsequent growth history.

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