Abstract Thermal stresses due to temperature differences between the cometary surface and the core have been calculated for different models of cometary nuclei. It is shown, that for comets on P/Halley-type orbits thermomechanical stresses exceed the (cohesive) strength of water ice near to the cometary surface. Consequently, there should be cracks on cometary surfaces. The existence of line structures on the surface of P/Halley, which might be due to thermomechanical cracks, is demonstrated on the basis of VEGA-images from the surface of P/Halley.


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    Title :

    Thermomechanical stresses on comets


    Contributors:
    Kührt, E. (author) / Möhlmann, D. (author) / Tauber, F. (author)

    Published in:

    Advances in Space Research ; 5 , 12 ; 105-111


    Publication date :

    1985-01-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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