Review: Accretion Disk Theory

Details Review: Accretion Disk Theory Review: Accretion Disk Theory

2012-03-30

arxiv.org/abs/1203.6851v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

21 pages, 9 figures

Scientific paper

In this paper I review and discuss the basic concepts of accretion disks, focused especially on the case of accretion disks around black holes. The well known alpha-model is revisited, showing the strengths and weaknesses of the model. Other turbulent viscosity prescription, based on the Reynolds number, that may improve our understanding of the accretion paradigm is discussed. A simple but efficient mathematical model of a self-gravitating accretion disk, as well as observational evidence of these objects, are also included.

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