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Helium and argon abundance constraints and the thermal evolution of Comet Austin (1989c1)Far-UV rocketborne spectrometer observations have established upper Ar and He abundance limits on Comet Austin. These limits indicate, relative to solar abundance, that Comet Austin is depleted in He/O and no more than 30-times enriched in Ar/O. Implications of these values for thermal conditions experienced during formation and evolution are discussed.
Document ID
19920043044
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Stern, S. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Green, James C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cash, Webster
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cook, Timothy A.
(Colorado, University Boulder, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: Icarus
Volume: 95
ISSN: 0019-1035
Subject Category
Astrophysics
Accession Number
92A25668
Funding Number(s)
CONTRACT_GRANT: NSG-5303
Distribution Limits
Public
Copyright
Other

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