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IJPAP Vol.49(02) [February 2011] >


Title: Effect of electron and ion temperature ratio on Kinetic Alfven wave with homogeneous plasma by kinetic approach
Authors: Agarwal, P
Varma, P
Tiwari, M S
Keywords: Kinetic Alfven wave
Kinetic approach
Auroral acceleration region
Earth’s magnetosphere
Plasma waves
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: The kinetic Alfven wave (KAW) has been studied by kinetic approach using Maxwell-Boltzmann-Vlasov equation to evaluate the kinetic dispersion relation and damping rate with electron and ion temperature ratio in homogeneous plasma for both the regions ki<1 and ki>1, in the auroral acceleration region, here k is the perpendicular wave number and i is the ion gyro radius. Many auroral and sub-auroral phenomena are the manifestations of an underlying magnetosphere-ionosphere coupling. This model is able to explain many features observed in auroral acceleration region as well as to evaluate the dispersion relation, growth rate, growth length and damping rate of kinetic Alfven wave. The applicability of this model is assumed for auroral acceleration region and plasma sheet boundary layer region.
Page(s): 91-98
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(02) [February 2011]

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