Relativistic particle dynamics in a steepening magnetosonic wave

Details Relativistic particle dynamics in a steepening magnetosonic wave Relativistic particle dynamics in a steepening magnetosonic wave

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phflb...1.1001l&link_type=abstract

Physics of Fluids B (ISSN 0899-8221), vol. 1, May 1989, p. 1001-1010. Research supported by CNRS.

Physics

43

Electron Acceleration, Ion Temperature, Magnetosonic Resonance, Relativistic Particles, Solitary Waves, Digital Simulation, Energetic Particles, Relativistic Electron Beams, Solar Flares

Scientific paper

Acceleration of both electrons and ions to relativistic energy by large amplitude magnetosonic waves is investigated by use of numerical simulation. Nonlinear effects are shown to form the saturation mechanism and limit the amplitude below the level where a particle specie can undergo unlimited acceleration, which is expected theoretically. Spiky structures appear both in density and field waveforms that are characteristics of the relativistic regime. Both electrons and ions are strongly accelerated by E(lx) x B(z) drift and E(ty) field, but their resonance features versus fields are strongly different. Around the trapping time, relativistic electron solitonlike wavelets are triggered from the main wave ramp.

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