NONLINEAR ALFVEN WAVES IN INHOMOGENEOUS PLASMAS

被引：23

作者：

BUTI, B

机构：

[1] Physical Research Laboratory, Ahmedabad

来源：

GEOPHYSICAL RESEARCH LETTERS | 1991年 / 18卷 / 05期

关键词：

D O I：

10.1029/91GL00854

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Nonlinear Alfven waves, in inhomogeneous plasmas, are shown to be governed by the MDNLS (Modified Derivative Nonlinear Schrodinger) equation. The inhomogeneity leads to acceleration (deceleration) of the Alfven solitons depending upon plasma beta (kinetic pressure/magnetic pressure) and on density gradients vis-a-vis direction of wave propagation. Potential applications, of the model, to space and astrophysical plasmas are pointed out.

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页码：809 / 812

页数：4

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