EFFECT OF COLD ELECTRON BEAM ON OBLIQUE PROPAGATING RELATIVISTIC EMEC WAVES FOR KAPPA DISTRIBUTION FUNCTION WITH AC FIELD FOR MAGNETO-PLASMA

被引：0
|
作者：
Pandey, R. S. [1 ]
Kaur, Rajbir [1 ]
Singh, K. M. [2 ]
Prasad, Vijay [2 ]
Singh, B. N. [2 ]
机构：
[1] Amity Univ, Amity Inst Appl Sci, Dept Phys, Sect 125, Noida, Uttar Pradesh, India
[2] Veer Kunwar Singh Univ, Dept Phys, Arrah, Bihar, India
来源：
JOURNAL OF SCIENCE AND ARTS | 2014年 / 04期
关键词：
Electron cyclotron waves; Kappa distribution; Magnetosphere;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The effect of cold electron beam on oblique propagating electromagnetic electron cyclotron (EMEC) wave has been studied by using the unperturbed Lorentzian (Kappa) distribution in the magnetosphere for relativistic plasma. The dispersion relation is obtained following the method of characteristic solutions and kinetic approach. An expression for the growth rate of a system has been calculated. It is inferred that in addition to the relativistic plasma obliquity and effect of cold electron beam modifies the growth rate and it also shifts the wave band significantly. The relativistic electrons by increasing the growth rate and widening the bandwidth may explain a wide frequency range of EMEC wave emissions in the magnetosphere.
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页码：359 / 370
页数：12
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