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A multi-fluid model of an H2O-dominated dusty cometary atmosphereThe solution of the simultaneous set of differential equations representing conservation of number density, momentum, and energy, together with solar radiation transfer in streams that are responsible for major photolytic processes and nucleus heating, yields a self-consistent multifluid solution for the thermal and dynamical structure of an H2O-dominated, two-phase dusty gas cometary atmosphere, whose validity is restricted to the collision-dominated region where ions and neutrals are assumed to achieve a common temperature and velocity. The model is transonic, due to the dust in the inner coma, and involves the subsonic expansion of the ions and neutrals from the nucleus until, in the outermost part of the collision-dominated coma, temperatures of 300-400 K are reached due to UV pyrolytic heating.
Document ID
19830047164
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Marconi, M. L.
(California Univ. La Jolla, CA, United States)
Mendis, D. A.
(California, University La Jolla, CA, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Moon and the Planets
Volume: 27
Subject Category
Astrophysics
Accession Number
83A28382
Funding Number(s)
CONTRACT_GRANT: NSF AST-81-08706
CONTRACT_GRANT: NSG-7623
CONTRACT_GRANT: NSG-7102
CONTRACT_GRANT: NGR-05-009-110
Distribution Limits
Public
Copyright
Other

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