Time dependent evolution of linear kinetic Alfven waves in inhomogeneous plasma

被引：8

作者：

Goyal, R. ^{[1
]}

Sharma, R. P. ^{[1
]}

Scime, Earl E. ^{[2
]}

机构：

[1] Indian Inst Technol, Ctr Energy Studies, Delhi 110016, India

[2] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 02期

基金：

美国国家科学基金会;

关键词：

LABORATORY EXPERIMENTS; SOLAR-WIND; GENERATION; IONOSPHERE;

D O I：

10.1063/1.4906882

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The propagation of linear Kinetic Alfven waves (KAWs) in inhomogeneous magnetized plasma has been studied while including inhomogeneities in transverse and parallel directions relative to the background magnetic field. The propagation of KAWs in inhomogeneous magnetized plasma is expected to play a key role in energy transfer and turbulence generation in space and laboratory plasmas. The inhomogeneity scale lengths in both directions may control the nature of fluctuations and localization of the waves. We present a theoretical study of the localization of KAWs, variations in magnetic field amplitude in time, and variation in the frequency spectra arising from inhomogeneities. The relevance of the model to space and laboratory observations is discussed. (C) 2015 AIP Publishing LLC.

引用

页数：6

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