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|Title:||Generation of field-aligned currents by VLF waves in the magnetosphere|
|Authors:||Kulkarni, V H|
|Keywords:||VLF Waves;Field-aligned current;Whistler;Whistler|
|Abstract:||This paper shows that VLF waves can be a source for the high energy electrons of tens of keV, carrying the small scale magnetic field-aligned Birkeland currents of sizes < 50 km in the magnetosphere. The dispersion relation for whistler mode waves in a magnetized plasma consisting of cold, warm and hot electrons and a beam of electrons carrying the current is examined. The VLF growth rates in the presence of field-aligned currents are found to be weaker and the current carrying electrons extract energy from the VLF waves. Along with the dependence of field-aligned currents and VLF waves on the magnetic activity, both these parameters also depend on each other directly.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.32(4) [August 2003]|
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