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Monte Carlo particle-trajectory models for neutral cometary gases. I - Models and equations. II - The spatial morphology of the Lyman-alpha comaThe mathematical derivations of various methods employed in the Monte Carlo particle-trajectory model (MCPTM) are presented, and the application of the MCPTM to the calculation of the photochemical heating of the inner coma through the partial thermalization of cometary hydrogen atoms produced by the photodissociation of water is discussed. This model is then used to explain the observed morphology of the spatially extended Ly-alpha comas of comets. The rocket and Skylab images of the Ly-alpha coma of Comet Kohoutek are examined.
Document ID
19880043946
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Combi, Michael R.
(Atmospheric and Environmental Research, Inc. Cambridge, MA, United States)
Smyth, William H.
(Atmospheric and Environmental Research, Inc. Cambridge, MA, United States)
Date Acquired
August 13, 2013
Publication Date
April 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 327
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
88A31173
Funding Number(s)
CONTRACT_GRANT: NASW-3950
CONTRACT_GRANT: NASW-3966
Distribution Limits
Public
Copyright
Other

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