Effect of Ion­ Electron Beam Velocity on Alfven Waves in Multi­ Component Magnetospheric Plasma­ Particle Aspect Analysis

V. P. Ahirwar¹ , G. Ahirwar²

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.4 , pp.26-32, Aug-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i4.2632

Online published on Aug 31, 2019

Copyright © V. P. Ahirwar, G. Ahirwar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
the main objective of present study is to understand the effect of ion-electron beam velocity on the Alfven waves in multi-component magnetospheric plasma by using method of particle aspect approach and using different plasma parameters in auroral acceleration region. Here one component is electron and other three components are the Hydrogen, Helium and Oxygen is mixed. We develop the dispersion relation and field-aligned currents of the Alfven waves with the help of General loss-Cone distribution function. The waves propagating in the direction of the ambient magnetic field along the z-axis are considered. The whole plasma has been considered to consist of resonant and non-resonant particles. It is assume that the resonant particles participate in energy exchange with the wave, whereas non-resonant particles support the oscillatory motion of the waves. Dispersion relation and associated field-aligned currents are evaluated for Alfven waves in the auroral region using particle aspect approach. The estimated results are shows the applications of Alfven waves in multi-component magnetospheric plasma in the auroral acceleration region of interplanetary space plasma as well as the magnetospheric plasma and astrophysical plasmas.

Key-Words / Index Term :
Alfven waves, Multi­ions, Parallel electric fields, , Beam velocity

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