Dissipative dynamics of collisionless nonlinear Alfven wave trains

被引：36

作者：

Medvedev, MV

Diamond, PH

Shevchenko, VI

Galinsky, VL

机构：

[1] UNIV CALIF SAN DIEGO, DEPT ELECT & COMP ENGN, LA JOLLA, CA 92093 USA

[2] UNIV CALIF SAN DIEGO, SCRIPPS INST OCEANOG, LA JOLLA, CA 92093 USA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.78.4934

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The nonlinear dynamics of collisionless Alfven trains. including resonant particle effects, is studied using the kinetic nonlinear Schrodinger (KNLS) equation model. Numerical solutions of the KNLS reveal the dynamics of Alfven waves to be sensitive ro 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 resulting the evolutionary formation of stationary S- and arc-polarized directional and rotational discontinuities. These wave forms are frequently observed in the interplanetary plasma.

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收藏

页码：4934 / 4937

页数：4

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