Abstract The direction of propagation of low frequency magnetic fluctuations generated by cometary ion pick-up is examined by means of one-dimensional electromagnetic hybrid simulations. The newborn ions are injected at a constant rate, and the helicity and direction of propagation of magnetic fluctuations are explored for cometary ion injection angles of 0° and 90° relative to the solar wind magnetic field. The parameter η represents the relative contribution of wave energy propagating in the direction away from the comet, parallel to the beam. For small (quasi-parallel) injection angles η was to found to be of order unity, while for larger (quasi-perpendicular) angles η was found to be of order 0.5.


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    Titel :

    The directional dependence of cometary magnetic energy density in the quasi-parallel and quasi-perpendicular regimes


    Beteiligte:
    Miller, R.H. (Autor:in) / Gombosi, T.I. (Autor:in) / Gary, S.P. (Autor:in) / Winske, D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1991-01-01


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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