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Solid organic residues produced by irradiation of hydrocarbon-containing H2O and H2O/NH3 ices - Infrared spectroscopy and astronomical implicationsPlasma-discharge irradiations were conducted for the methane clathrate expected in outer solar system satellites and cometary nuclei; also irradiated were ices prepared from other combinations of H2O with CH4, C2H6, or C2H2. Upon evaporation of the yellowish-to-tan irradiated ices, it is found that a colored solid film adheres to the walls of the reaction vessel at room temperature. These organic films are found to exhibit IR band identifiable with alkane, aldehide, alcohol, and perhaps alkene, as well as substituted aromatic functional groups. These spectra are compared with previous studies of UV- or photon-irradiated nonclathrated hydrocarbon-containing ices.
Document ID
19890056811
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Khare, B. N.
(Cornell Univ. Ithaca, NY, United States)
Thompson, W. R.
(Cornell Univ. Ithaca, NY, United States)
Murray, B. G. J. P. T.
(Cornell Univ. Ithaca, NY, United States)
Chyba, C. F.
(Cornell Univ. Ithaca, NY, United States)
Sagan, C.
(Cornell University Ithaca, NY, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1989
Publication Information
Publication: Icarus
Volume: 79
ISSN: 0019-1035
Subject Category
Astrophysics
Accession Number
89A44182
Funding Number(s)
CONTRACT_GRANT: DE-AC05-84OR-21400
CONTRACT_GRANT: NGR-33-010-101
CONTRACT_GRANT: NGR-33-010-220
Distribution Limits
Public
Copyright
Other

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