Excitation of VLF mode instability with electric field by loss-conedistribution

摘要

The excitation of electromagnetic whistler mode wave of low frequencies by loss-cone distribution function has been studied in the auroral region in the presence of perpendicular AC electric field. Method of characteristics solution and kinetic approach has been adopted to derive the dispersion and growth rate. In this paper the effect of AC field frequency, loss-cone angle and temperature anisotropy has been studied by using the method of characteristics solution in the auroral region of ionosphere.