AbstractMHD study for the adiabatic expansion acceleration process associated with the spontaneous fast magnetic reconnection is reported. When the fast reconnection process steadily generates a plasmoid in the downstream, the adiabatic expansion acceleration region appears between the reconnection jet and plasmoid. It is pointed out that the appearance of the acceleration region is required to steadily keep the reconnection process. The reconnection jet and plasmoid is generally high beta but the plasma pressure in the acceleration region is extremely low, when the reconnection jet is supersonic. This feature may become a signature to detect where the Petschek reconnection is steadily caused in the current sheet of the geomagnetotail.


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    Titel :

    Adiabatic expansion acceleration process in spontaneous fast magnetic reconnection


    Beteiligte:
    Shimizu, T. (Autor:in) / Kondoh, K. (Autor:in) / Ugai, M. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 37 , 7 ; 1283-1286


    Erscheinungsdatum :

    2005-05-31


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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