Effects of Superthermal Particles on Waves in Magnetized Space Plasmas |
| |
Authors: | Manfred Hellberg Richard Mace Tom Cattaert |
| |
Institution: | (1) School of Physics, University of KwaZulu-Natal, Durban, 4000, South Africa;(2) Sterrenkundig Observatorium, Universiteit Gent, B-9000 Ghent, Belgium |
| |
Abstract: | Distributions with excess numbers of superthermal particles are common in space environments. They are well modelled by the
isotropic kappa distribution, or, where magnetic effects are important, the kappa-Maxwellian. This paper presents a review
of some studies of electrostatic and electromagnetic waves in such plasmas, based on the associated generalized plasma dispersion
functions, Z
κ and Z
κM. In particular, the effects of low values of κ are considered, i.e. strongly accelerated distribution functions. Recently the full susceptibility tensor for oblique propagation of electromagnetic
waves in a kappa-Maxwellian magnetoplasma has been established and has been applied to the study of whistler waves. |
| |
Keywords: | plasma waves magnetosphere kappa distribution |
本文献已被 SpringerLink 等数据库收录! |
|