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Nonlinear Expansion Triggered by Magnetic Stress in Accretion Flow onto a Black Hole

Published online by Cambridge University Press:  12 April 2016

M. Yokosawa
M. Yokosawa*
Affiliation:
Department of Physics, Ibaraki University, Mito 310

Abstract

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The paper is an investigation of the magnetohydrodynamics (MHD) of the quasi-radial accretion onto a rotating black hole. It is demonstrated that the nonlinear effects in the accretion flow accelerate the rate of expansion of the Alfven mode. The accretion flow becomes unstable at the weak strength of magnetic field which is about one-thirtieth of the expected value by the linear theory.

Type
I. Fundamental Theories
Information
International Astronomical Union Colloquium , Volume 134: Nonlinear Phenomena in Stellar Variability , 1993 , pp. 109 - 111
Copyright
Copyright © Kluwer 1993

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