The comet thermal model of Weissman and Kieffer is used to calculate gas production rates and other parameters for the 1986 perihelion passages of Halley's Comet. Gas production estimates are very close to revised pre-perihelion estimates by Newburn based on 1910 observations of Halley; the increase in observed gas production post-perihelion may be explained by a variety of factors. The energy contribution from multiply scattered sunlight and thermal emission by coma dust increases the total energy reaching the Halley nucleus at perihelion by a factor of 2.4. The high obliquity of the Halley nucleus found by Sekanina and Larson may help to explain the asymmetry in Halley's gas production rates around perihelion.


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    Titel :

    Thermal modeling of Halley's Comet


    Beteiligte:
    Weissman, P. R. (Autor:in) / Kieffer, H. H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.1984



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Thermal modeling of Halley's comet

    Weissman, Paul R. / Kieffer, Hugh H. | Elsevier | 1984


    Halley's Comet in history

    Yoemans, D. K. / Rahe, J. / Freitag, R. | NTRS | 1986


    Space Missions to Halley's Comet

    R. Reinhard / B. Battrick / E. Rolfe | NTIS | 1986



    The Giotto mission to Halley's comet

    Reinhard, R. | Elsevier | 1983