Monte Carlo simulation of energization of Jovian trapped electrons by recirculation

Details Monte Carlo simulation of energization of Jovian trapped electrons by recirculation Monte Carlo simulation of energization of Jovian trapped electrons by recirculation

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.3841f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, April 1, 1990, p. 3841-3853.

Physics

8

Jupiter Atmosphere, Monte Carlo Method, Planetary Magnetospheres, Trapped Particles, Electron Scattering, Energy Spectra, Magnetohydrodynamics, Spectral Energy Distribution, Planets, Jupiter, Monte Carlo Methods, Simulations, Electrons, Models, Trapping, Circulation, Particles, Acceleration, Magnetosphere, Earth, Diffusion, Anisotropy, Energy, Electrical Field, Turbulence, Altitude, Diagrams, Calculations, Trajectories, Hypotheses, Radiation Belt, Dynamics, Saturn, Comparisons

Scientific paper

The recirculation model for particle acceleration in the Jovian magnetosphere is studied by means of Monte Carlo simulation. The recirculation model combines the conventional radial and pitch angle diffusion processes with the essentially energy-conserving latitudinal diffusion in low altitudes and the pitch angle scattering in the plasma disk. This process has been proposed to explain the pitch angle and spectral characteristics of MeV electrons observed by Pioneer in the Jovian magnetosphere. The simulation confirms that the dumbbell-type anisotropy and the high-energy tail of the energy spectrum can be produced from the recirculation process if the rate of the low-altitude cross-L diffusion is comparable to that of the conventional radial diffusion.

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