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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    Title :

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


    Contributors:
    Miller, R.H. (author) / Gombosi, T.I. (author) / Gary, S.P. (author) / Winske, D. (author)

    Published in:

    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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