LHF Whistlers Observed by EXOS-A (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)

Abstract

LHR (lower hybrid resonance) whistlers have been found in the mid-latitude records from a bioadband VLF receiver aboard the EXOS-A satellite. Characteristics of the LHR whistlers are the successive enhancement of dispersion and the frequency resonance, in the vicinity of the local LHR frequency. The resonance phenomenon of the LHR whistlers has been interpreted as a nonducted propagation of whistler-mode waves with a large wave normal angle in the magnetospheric plasma, whose density gradient is pearly perpendicular to the earth's magnetic field