Highlights of infrared observations of the dust are discussed and compared with first results from the space probes. An emission feature was detected at 3.4 microns; the 10 and 20 micron silicate features were well-observed; and far-infrared data out to 160 micron were obtained. Organic material seems to be abundant in grains and may explain the 3.4 micron emission. Calculations are presented for one example of organic material. A component of the grains may volatize at temperatures around 300 K.


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    Title :

    A preliminary look at the dust in Comet Halley


    Contributors:

    Published in:

    Publication date :

    1985-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :




    Dust emission of Comet Halley at large heliocentric distances

    Gruen, E. / Schwehm, G. / Massonne, L. et al. | NTRS | 1985


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    Lamy, P. / Lafon, J.-P.J. / Dumas, C. | Elsevier | 1993