Basics of Plasma Astrophysics by Claudio Chiuderi & Marco Velli

Author:Claudio Chiuderi & Marco Velli
Language: eng
Format: epub
Publisher: Springer Milan, Milano

The nonlinear evolution of the instability can lead to developed magnetohydrodynamic turbulence and a consequent effective viscosity in accretion disks. Detailed studies of the nonlinear evolution of the MRI, the nature of the turbulence and its saturation in different accreting systems are still at the forefront of contemporary astrophysical research.

Questions and Problems

6.1

Consider a configuration of the theta-pinch type, but with the plasma column in direct contact with a rigid and perfectly conducting wall at a distance from the cylinder’s axis. Deduce the dispersion relation for the modes, assuming . What changes if ?

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