The formation of an ice crust below the dust mantle of a cometary nucleus

Details The formation of an ice crust below the dust mantle of a cometary nucleus The formation of an ice crust below the dust mantle of a cometary nucleus

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...366..318p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 366, Jan. 1, 1991, p. 318-323.

Statistics

Computation

26

Comet Nuclei, Computational Astrophysics, Cosmic Dust, Ice Formation, Astronomical Models, Condensation, Density Distribution, Heat Transfer, Perihelions, Porosity, Comets, Comet Nuclei, Formation, Ice, Crust, Dust, Mantle, Vapor, Condensation, Porosity, Thickness, Parameters, Heat, Transport, Models, Halley, Sublimation, Structure, Surface, Evaporation, Density, Depth, Production Rate, Temperature, Flux, Calculations, Numerical Methods

Scientific paper

Using a cometary model which assumes a porous cometary nucleus covered by an equally porous thin permanent dust mantle, the possible formation of an ice crust below the surface of the comet nucleus by the condensation of the inward-flowing vapor is investigated. It is found that, for any given porosity value, there is a range of dust-mantle thicknesses at which the formation of a crust is favored. Below this range, sublimation is too strong, making it impossible for any change in the ice structure within a surface layer to occur before the layer evaporates; above this range, the thick dust mantle quenches the vapor production rate. The consequences of the ice crust formation are examined for two models, with the dust mantles 5-mm and 1-mm thick, respectively.

Affiliated with

Also associated with

No associations

Rating

The formation of an ice crust below the dust mantle of a cometary nucleus does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The formation of an ice crust below the dust mantle of a cometary nucleus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The formation of an ice crust below the dust mantle of a cometary nucleus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1894851