Resonant ion acceleration by magnetosonic shock waves

Details Resonant ion acceleration by magnetosonic shock waves Resonant ion acceleration by magnetosonic shock waves

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.251..229o&link_type=abstract

In ESA Proceedings of the Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics p 229-236 (SEE N87-

Astronomy and Astrophysics

Astrophysics

Ion Accelerators, Magnetosonic Resonance, Particle Acceleration, Plasma Heating, Plasma Waves, Shock Heating, Shock Waves, Beta Factor, Particle Production, Relativistic Effects

Scientific paper

It is shown by theory and a relativistic, electromagnetic particle simulation that strong ion acceleration occurs in a fast magnetosonic shock wave; the maximum speed of trapped ions can be about (mi/me)1/2 times as large as the Alfvén speed in a quasiperpendicular shock. The acceleration takes place even in laminar shock waves. The magnitude of the acceleration increases with ωce/ωpe and is enhanced by finite beta effects. For a parameter regime ωce/ωpe ⪆ 1, highly relativistic ions and electrons are produced simultaneously in the shock ramp. The structure of a nonlinear slow wave and associated resonant ion acceleration is also discussed.

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