Abstract
The main objective of present study is to understand the effect of parallel electric field and the effect of the temperature anisotropy on the Alfven waves in multi-component magnetospheric plasma by using method of kinetic approach and using different plasma parameters in auroral acceleration region. In our present study, we consider one component is electron (e) and other three components are the Hydrogen (H+), Helium (He+) and Oxygen (O+) ions are mixed. We evaluated dispersion relation and growth /damping rate 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 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. The estimated results are shows the applications of Alfven waves in multi-component magnetospheric plasma in theauroral acceleration region of interplanetary space plasma as well as the magnetospheric plasma and astrophysical plasmas.
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