A variety of suprathermal and energetic ion distributions are found upstream from shocks. Some distributions, such as field-aligned beams, are generated directly at the shock either through reflection processes or through leakage from the hotter downstream region. Other distributions, such as intermediate distributions, evolve from these parent distributions through wave-particle interactions. This paper reviews our current understanding of the creation and evolution of suprathermal distributions at shocks. Examples of suprathermal ion distributions are taken from observations at the Earth's bow shock. Particular emphasis is placed on the creation of field-aligned beams and specularly reflected ion distributions and on the evolution of these distributions in the Earth's ion foreshock. However, the results from this heavily studied region are applicable to interplanetary shocks, bow shocks at other planets, and comets.


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    Title :

    Ion distributions in the Earth's foreshock upstream from the bow shock


    Contributors:

    Published in:

    Publication date :

    1995-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Ion Distributions in the Earth's Foreshock Upstream from the Bow Shock

    Fuselier, S. A. / Committee on Space Research; Scientific Commission D | British Library Conference Proceedings | 1995




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    Nonlinear Wave Particle Interaction in the Earth's Foreshock

    Mazelle, C. et al. | British Library Online Contents | 1997