Electronic Resource
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
1 (1989), S. 1001-1010
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
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 Elx×Bz drift and Ety 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; a few mechanisms are proposed for their interpretation. Both electrons and ions are strongly heated at the expense of the wave energy. This damping in association with the large space charge effects resulting from the spiky structures is the origin of some observed saturation level in the field energy.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.859021
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