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Relativistic kinetic theory of the large-amplitude transverse Alfvén wave

Published online by Cambridge University Press:  13 March 2009

Aaron Barnes
Affiliation:
Space Sciences Division, Ames Research Center, NASA, Moffett Field, California 94035
Graham C. J. Suffolk
Affiliation:
Space Sciences Division, Ames Research Center, NASA, Moffett Field, California 94035

Abstract

It is shown that the relativistic Vlasov–Maxwell equations admit a solution very much like the transverse Alfvén wave of magnetohydrodynamic theory. This wave propagates as a plane electromagnetic wave of arbitrary amplitude, is noncompressive, is associated with fluctuations in direction (but not magnitude) of magnetic field, is characterized by a non-linear ‘dispersion relation’, and reduces in the limit of small amplitude to the transverse Alfvén mode of linearized plasma wave theory. The dispersion relation yields a criterion for the firehose instability which turns out to be the same as that derived from linearized theory.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1971

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