NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Solar nebula origin for volatile gases in Halley's cometThe conditions for Comet Halley formation are presently considered in light of the application of physical and chemical processes in the solar nebula environments to the present data base on the composition of the comet's gases. Key molecular ratios are compared to solar nebula model predictions, and the nebular thermochemistry is quantified for a range of solar elemental compositions which correspond to varying water depletion states in the inner nebula. Assuming that inner nebula chemistry is catalyzed by reaction on grains, it is judged that the abundances of the volatile C species CH4, CO, and CO2 in Halley could have been supplied by the solar nebula.
Document ID
19900049453
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Engel, Steffi
(Arizona Univ. Tucson, AZ, United States)
Lunine, Jonathan I.
(Arizona Univ. Tucson, AZ, United States)
Lewis, John S.
(Arizona, University Tucson, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: Icarus
Volume: 85
ISSN: 0019-1035
Subject Category
Astrophysics
Accession Number
90A36508
Funding Number(s)
CONTRACT_GRANT: NAGW-1039
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available