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Nonlinear Effects and the Limitation of Electron Streaming Instabilities in Astrophysics

Published online by Cambridge University Press:  04 August 2017

Steven R. Spangler
Affiliation:
Department of Physics and Astronomy, The University of Iowa, Iowa City, IA 52242
James P. Sheerin
Affiliation:
Department of Physics and Astronomy, The University of Iowa, Iowa City, IA 52242

Abstract

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Nonlinear effects, such as soliton collapse, will result in evolution of hydromagnetic waves excited by a field-aligned charged particle beam. If the time scale for such evolution is comparable to, or shorter than, linear time scales such as those for wave growth or pitch angle isotropization, then nonlinear effects may limit the instability. For conditions appropriate to relativistic electron streaming in a radio galaxy, the nonlinear time scale may be comparable to the linear time scales.

Type
Session V
Copyright
Copyright © Reidel 1985 

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