Title: On the modulational instability of whistler waves under the condition of weak relativity
Abstract: In this paper we investigate the raodulational instability of the whistler wave propagating along the external magnetic field. In addition to two nonlinear effects arising from perturbations of the particle density and the streaming velocity field through the action of the ponderomotive force, the nonlinear effect induced by the weak relativistic electron mass variations is also included. Some results about the conditions for the soliton formation and for the occurrence of the modulational instability are obtained as well as the growth rate of instability. They are somewhat different from those in the nonrelativistic case.
Publication Year: 1991
Publication Date: 1991-01-01
Language: en
Type: article
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