Abstract In order to study the interaction of light with cometary grains, we represent an irregular particle by a network of interacting dipoles whose polarizability is determined in a first approach by the Clausius-Mossiti relationship. Typically, 10000 dipoles are considered. In the case of spherical particles, the results from Mie theory are fully recovered. The main interest of this method is to study with a good accuracy the implications of surface roughness and/or inhomogeneities on optical properties in the infrared spectral range, particularly of the silicate emission features.


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    Title :

    Infrared properties of rough cometary grains


    Contributors:
    Perrin, J.M. (author) / Lamy, P.L. (author)

    Published in:

    Publication date :

    1989-01-01


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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