A model of the macro-features of the surface layer of a cometary nucleus

Details A model of the macro-features of the surface layer of a cometary nucleus A model of the macro-features of the surface layer of a cometary nucleus

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.316..642h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 316, Issue 3, pp. 642-646.

Astronomy and Astrophysics

Astronomy

12

Comets: General, Dust, Extinction

Scientific paper

The macro-features of the surface layer of a `fresh' cometary nucleus are modelled by assuming that the dust and the snow particles of which it consists both have a mass distribution index of 1.65, and that the dust/gas mass ratio is 0.45. Conclusions are drawn as to how this model helps us to understand the cometary sublimation process and the cometary surface layer. The latter most probably consists of weak, low-density, friable, slightly dusty snow. Its ability effectively to support even the small weight of, say, the Rosetta landing probe is in considerable doubt.

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