Particle acceleration by kinetic Alfven waves in the Io plasma torus

Details Particle acceleration by kinetic Alfven waves in the Io plasma torus Particle acceleration by kinetic Alfven waves in the Io plasma torus

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992p%26ss...40.1499d&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 40, no. 11, p. 1499-1502.

Physics

13

Io, Magnetohydrodynamic Waves, Particle Acceleration, Plasma Density, Surface Waves, Toroidal Plasmas, Electron Beams, Energetic Particles, Magnetic Field Configurations, Magnetohydrodynamic Stability, Wave Generation

Scientific paper

The generation of surface waves due to a strong gradient in the plasma density and its coupling to kinetic Alfven waves near the Io plasma torus are found to be a viable mechanism for particle acceleration leading to a beam of energetic electrons along the magnetic field. It is shown that acceleration to a few kiloelectronvolts is possible and this might explain the intense auroral hiss observed near the inner edge of the Io plasma torus by Voyager 1.

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