A model of dust fragmentation in near-nucleus jet-like features on Comet P/Halley

Details A model of dust fragmentation in near-nucleus jet-like features on Comet P/Halley A model of dust fragmentation in near-nucleus jet-like features on Comet P/Halley

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..101...84k&link_type=abstract

Icarus (ISSN 0019-1035), vol. 101, no. 1, p. 84-94.

Physics

12

Comet Nuclei, Cometary Atmospheres, Dust, Halley'S Comet, Hydrodynamics, Particle Size Distribution, Two Phase Flow, Acceleration (Physics), Gas Flow, Giotto Mission, Mach Number, Comets, Halley, Models, Dust, Fragmentation, Hydrodynamics, Gases, Flow, Comae, Distribution, Parameters, Particles, Size, Velocity, Distance, Acceleration, Jets, Intensity, Timescale, Calculations, Numerical Methods, Comet Nuclei

Scientific paper

A model for dusty gas flows and dust fragmentation in cometary atmospheres is developed and applied to interpret the dust intensity profiles near the nucleus of Comet P/Halley. It is found that fragmentation is not the only physical mechanism for explaining the dust intensity profiles from the 1/z dependence in the region about 1 to 40 km from the nucleus. A combination of the geometric effect and dust fragmentation is a likely explanation for the profiles.

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