Effects of corotation electric field on the dynamics of energetic particles in an asymmetric planetary magnetic field

Details Effects of corotation electric field on the dynamics of energetic particles in an asymmetric planetary magnetic field Effects of corotation electric field on the dynamics of energetic particles in an asymmetric planetary magnetic field

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989angeo...7..515p&link_type=abstract

Annales Geophysicae (ISSN 0980-8752), vol. 7, Oct. 1989, p. 515-518.

Physics

1

Electric Fields, Energetic Particles, Magnetic Field Configurations, Particle Motion, Planetary Magnetic Fields, Planetary Magnetospheres, Corotation, Earth Magnetosphere, Equatorial Atmosphere, Jupiter Atmosphere, Particle Precipitation

Scientific paper

The effects of the corotation electric field on the dynamics of energetic particles in the inner magnetosphere of the earth and Jupiter is investigated, using the concept of drift paths of constant effective potential and assuming that the particles corotate rigidly with the planet. The study is restricted to equatorial particles and it is assumed that, in both planets, the magnetic field in the inner magnetosphere can be well described by an eccentric dipole model. It is found that several different types of trajectories do occur, going from those encircling the planet to those restricted to a given longitude sector, this behavior being dependent on the charge (electron or proton) and energy (10 keV to 1 MeV for earth and 1 MeV to 1 GeV for Jupiter) of the particles. These results are discussed in the context of the possible implications on the morphology of the particle precipitation.

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