Dissipative Dynamics of Collisionless Nonlinear Alfven Wave Trains

Details Dissipative Dynamics of Collisionless Nonlinear Alfven Wave Trains Dissipative Dynamics of Collisionless Nonlinear Alfven Wave Trains

1997-07-26

arxiv.org/abs/physics/9707021v1

Phys. Rev. Lett. v.78 (1997), pp.4934-4937

Physics

Space Physics

REVTeX, 6 pages (including 5 figures). This and other papers may be found at http://sdphpd.ucsd.edu/~medvedev/papers.html

Scientific paper

10.1103/PhysRevLett.78.4934

The nonlinear dynamics of collisionless Alfven trains, including resonant particle effects is studied using the kinetic nonlinear Schroedinger (KNLS) equation model. Numerical solutions of the KNLS reveal the dynamics of Alfven waves to be sensitive to the sense of polarization as well as the angle of propagation with respect to the ambient magnetic field. The combined effects of both wave nonlinearity and Landau damping result in the evolutionary formation of stationaryOA S- and arc-polarized directional and rotational discontinuities. These waveforms are freqently observed in the interplanetary plasma.

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