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The infrared spectral properties of frozen volatilesSince Whipple's dirty snowball model of comet nuclei, it has been generally accepted that volatile ices help to explain cometary phenomena. The infrared spectral properties of many substances that are potential candidates for frozen volatiles in the solar system are being pursued; indeed some of these frozen materials have been found in the solar system: H2O, CO2, and SO2. A review of laboratory spectra in the range 1 to 20 microns of H2O, CO2, SO2, CH4, NH3, H2S, CO, NH4HS and NH3.H2O is presented. Both reflection spectra of thick frosts and transmission spectra of thin films are shown, and their main characteristics are described. Hydrates, clathrates, and composite spectra are discussed. When it is possible to observe the nuclei of comets at close range, it may be possible to identify frozen volatiles by their infrared spectra.
Document ID
19830032163
Document Type
Other - Collected Works
Authors
Fink, U.
(Arizona Univ. Tucson, AZ, United States)
Sill, G. T.
(Arizona, University Tucson, AZ, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: NASA TASK 13
CONTRACT_GRANT: NASA TASK 15
CONTRACT_GRANT: NSG-7070
Distribution Limits
Public
Copyright
Other
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