Ion and electron beam effects on kinetic Alfven waves in an inhomogeneous magnetosphere

被引：10

作者：

Dwivedi, AK ^{[1
]}

Varma, P ^{[1
]}

Tiwari, MS ^{[1
]}

机构：

[1] Dr HS Gour Univ, Dept Phys, Sagar 470003, MP, India

来源：

PLANETARY AND SPACE SCIENCE | 2002年 / 50卷 / 01期

关键词：

D O I：

10.1016/S0032-0633(01)00070-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Kinetic Alfven waves are examined in the presence of ion and electron beams with bi-Maxwellian distribution functions. The theory of particle aspect analysis is used to evaluate the trajectories of charged particles in the electromagnetic field of a kinetic Alfven wave. The expressions for the field-aligned currents, perpendicular currents (with respect to B-0), dispersion relation and growth-rate with marginal instability criteria are derived. The significance of the investigation for the earth's magnetoplasma is discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：93 / 99

页数：7

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