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The McDonald Observatory Faint Comet Survey - Gas production in 17 cometsThe complete Intensified Dissector Scanner data set on 17 comets is presented, and production rates are derived and analyzed. It is shown that there is a strong degree of homogenization in the production rate ratios of many comets. It also appears that the ratio of the production rates of the various species has no heliocentric distance dependence, except for the case of NH2. When speaking of the gas in the coma of a comet, it appears that comets must have been formed under remarkably uniform conditions, and that they must have evolved and formed their comae in a similar manner. The data presented here constitute strong evidence that the minor species must be bound up in a lattice and that the interior of a comet must be reasonably uniform.
Document ID
19920072317
Document Type
Reprint (Version printed in journal)
Authors
Cochran, Anita L. (NASA Headquarters Washington, DC United States)
Barker, Edwin S. (NASA Headquarters Washington, DC United States)
Ramseyer, Tod F. (NASA Headquarters Washington, DC United States)
Storrs, Alex D. (McDonald Observatory; Texas, University Austin, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Publication Information
Publication: Icarus
Volume: 98
Issue: 2 Au
ISSN: 0019-1035
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAGW-1477
CONTRACT_GRANT: NSF AST-89-12869
CONTRACT_GRANT: NSF AST-84-18196
CONTRACT_GRANT: NAGW-2288
Distribution Limits
Public
Copyright
Other