WAVE- PARTICLE INTERACTION IN THE POLAR CUSP

摘要

This paper presents the review of the observations of the low frequency plasma waves together with plasma particles which were done by Interball 1 Magion-4 subsatellite to Interball 1 and Freja satellites in the different cusp regions. The detailed study of the wave spectra together with the distribution function for electrons indicate the correlation between presence of the lower-hybrid waves and the population of the particles with higher energy then in the surrounding space. These experimental facts suggest that strong coupling between waves and particles is responsible for plasma heating. Freja data with high time resolution allow to find the process of the energy transport via cascade from low frequency waves through electron energization to high frequency waves.