Aspects of Accretion Processes On a Rotating Black Hole

Details Aspects of Accretion Processes On a Rotating Black Hole Aspects of Accretion Processes On a Rotating Black Hole

1996-11-10

arxiv.org/abs/astro-ph/9611073v1

Astronomy and Astrophysics

Astrophysics

11 latex pages and 10 figures. Plenary talk lecture. Appearing in the Proceedings of XVIIIth Conference of the Indian Associat

Scientific paper

We describe the most general nature of accretion and wind flows around a compact object and emphasize on the properties which are special to black hole accretion. The angular momentum distribution in the most general solution is far from Keplerian, and the non-Keplerian disks can include standing shock waves. We also present fully time dependent numerical simulation results to show that they agree with these analytical solutions. We describe the spectral properties of these accretion disks and show that the soft and hard states of the black hole candidates could be explained by the change of the accretion rate of the disk. We present fits of the observational data to demonstrate the presence of sub-Keplerian flows around black holes.

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