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|Title:||Propagation of whistler waves and their instability in the magenetosphere|
Singh, R N
|Abstract:||The dispersion equation for whistler mode waves in the anisotropic plasma in the presence of parallel electrostatic field is derived. Using the realistic models of magnetospheric plasma and field parameters, the refractive index surfaces for whistler mode waves have been constructed. The presence of parallel electric field and anisotropy deform the refractive indeed surface and produce defocusing of whistler waves. The presence of parallel electric field induces an instability in the whistler mode waves which are found to depend on the magnitude and direction of the electrostatic field. It is concluded that the analysis of whistler wave records received on the ground is capable of accounting for the role of plasma anisotropy and the presence of parallel electric fields.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.18(2) [April 1989]|
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