Abstract Modelling of the cometary coma with respect to the distribution of dust particles within the coma and tail have been performed by a number of authors /1,2,3/. Applications of the Divine model using a program coded for the Giotto DIDSY sensors have also been made to calculate expected sensor response of the instrument and spacecraft impact rates /4/. For a chosen mass of ∼ 10−10g we use the Divine Reference model /1/ to investigate the effect on the mass envelope of i) a velocity spread in dust particle ejection; and ii) a variation in the particle type. The results show that effects i) and ii) lead to a smoothing-out of the anticipated peak flux at an envelope boundary. A conceptual model to follow the formation and development of dust jets is also presented and effects illustrated for various nucleus rotation periods.


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    Titel :

    Heterogeneous grain morphologies and acceleration mechanisms in cometary coma dust dynamics: Mass envelope dispersion


    Beteiligte:
    Carey, W.C. (Autor:in) / McDonnell, J.A.M. (Autor:in) / Welch, C.S. (Autor:in) / Zarnecki, J.C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1984


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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