Convection and wave-particle interactions

Details Convection and wave-particle interactions Convection and wave-particle interactions

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jatp...40..373s&link_type=abstract

(European Geophysical Society, Symposium on the Earth's Magnetopause Regions, Amsterdam, Netherlands, Sept. 7-10, 1976.) Journal

Physics

Atmospheric Physics, Convection, Earth Magnetosphere, Energetic Particles, Proton Energy, Wave Interaction, Adiabatic Equations, Anisotropy, Charge Exchange, Distribution Functions, Integral Equations, Ion Cyclotron Radiation, Ring Currents, Steady State

Scientific paper

We study, by means of the adiabatic invariants and Liouville's theorem, the deformation of the distribution functions of substorm injected particles in the magnetosphere. Assuming a steady-state convection process, we can obtain simple analytical expressions for the particle flux, the anisotropy and the growth rate of electromagnetic cyclotron waves. These expressions depend on the ratio between the electrostatic potential energy and the resonant energy of the particles. This allows us to obtain an overall view of the wave particle interactions in the outer magnetosphere. These computations are applied to ring current proton interactions with ion cyclotron waves.

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