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.


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    Title :

    Relaxation of plasma at the shock front


    Contributors:
    Vaisberg, O. (author) / Klimov, S. (author) / Zastenker, G. (author) / Nozdratchev, M. (author) / Sokolov, A. (author) / Smirnov, V. (author) / Savin, S. (author) / Avanov, L. (author)

    Published in:

    Advances in Space Research ; 4 , 2-3 ; 265-275


    Publication date :

    1984-01-01


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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