Condensation of ice particles in the vicinity of a cometary nucleus

Details Condensation of ice particles in the vicinity of a cometary nucleus Condensation of ice particles in the vicinity of a cometary nucleus

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...152l..17y&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 152, no. 2, Nov. 1985, p. L17-L20.

Astronomy and Astrophysics

Astrophysics

13

Comet Nuclei, Condensation, Hydrodynamics, Ice Formation, Emission Spectra, Halley'S Comet, Infrared Spectra, Sublimation, Visible Spectrum, Comets, Condensation, Ice, Particles, Comet Nuclei, Production Rate, Water, Formation, Sublimation, Physical Properties, Scattering, Calculations, Thermal Properties, Emissions, Spectra, Models

Scientific paper

It is found that water molecules once sublimated from a cometary nucleus recondense into very fine pure ice particles in the circumnuclear region when the H2O production rate is larger than ≡1029s-1. The authors present a picture of the formation and subsequent sublimation of these ice particles and discuss their properties at the encounters of the spacecrafts to Halley's comet in march 1986. The scattering and thermal emission spectra from these particles are calculated for the above conditions.

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