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Title: Drift Wave Instability in the Plasmasphere
Authors: Renuka, G
Sreevalsan, E
Joseph, Philomina
Issue Date: Apr-1987
Publisher: NISCAIR-CSIR, India
Abstract: An analysis of the drift wave instability in the plasmasphere during magnetically active and magnetically quiet periods is made. It is found that even though a stabilization effect owing to the admixture of cold electrons is possible, the condition for exciting the ion acoustic wave is satisfied in the plasmasphere. The dependence of growth rate of this excited wave on electron temperature is carried out for various values of the Mcilwain parameter L and electron and ion temperatures Tc and Ti respectively. The results of the numerical calculation show that the growth rate is very small in magnetically quiet period and increases during magnetically active periods and becomes considerable at high electron temperatures.
Page(s): 232-235
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.16(2) [April 1987]

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