Abstract Brief overview of previous studies of ion thermalization at the shock transition is given. One non-quite typical Prognoz-8 quasi-perpendicular bow shock crossing on 11 February 1981 is considered for which high-time resolution data on plasma and ELF electric field fluctuations are available. Strong turbulence in LH-range that is associated with two-stream ion motion upstream of shock transition is characterized by an exponential growth and saturation of these fluctuations at a level of ∼100 mV/m. The heating of ions at the main shock transition is associated with pulse-like increase of these waves amplitude. Relaxation of gyrating beams downstream of the main shock transition appears to be associated with ion-cyclotron waves and additional heating of ions and passes through two phases: hydrodynamic and kinetic ones. Linear and time scales of the events are estimated.
Relaxation of plasma at the shock front
Advances in Space Research ; 4 , 2-3 ; 265-275
1984-01-01
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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