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Infrared spectrum of Io, 2.8-5.2 micronsThe reflectance spectrum of Io is presented from 2.8 to 5.2 microns demonstrating the full extent of the broad and deep spectral absorption between 3.5 and 4.8 microns. Laboratory spectra of nitrates and carbonates diluted with sulfur do not satisfactorily reproduce the Io spectrum, but new information based on recently discovered volcanic activity on the satellite lead to consideration of other classes of compounds reported by Fanale et al. (1979). It is concluded that the variability of the supply of condensible SO2 gas to the surface of Io, its removal by sublimination, and the temporal variations in the strength of the SO2 band may provide an index of volcanic activity on Io that can be monitored from the earth.
Document ID
19800043911
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cruikshank, D. P.
(Hawaii, University Honolulu, Hawaii, United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1980
Publication Information
Publication: Icarus
Volume: 41
Subject Category
Lunar And Planetary Exploration
Accession Number
80A28081
Funding Number(s)
CONTRACT_GRANT: NGL-12-001-057
Distribution Limits
Public
Copyright
Other

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