Mathematics – Logic
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.1802n&link_type=abstract
American Astronomical Society, DPS meeting #38, #18.02; Bulletin of the American Astronomical Society, Vol. 38, p.514
Mathematics
Logic
Scientific paper
Photometric and spectral analysis of data from the Cassini Visual and Infrared Mapping Spectrometer (VIMS) has yielded intriguing findings regarding the properties and composition of the surface of Saturn's satellite Enceladus. Spectral cubes, which contain both spatial and spectral information, were obtained of this satellite with a wavelength distribution in the infrared far more extensive than from any previous observations. Using these cubes, we have discovered a distribution of amorphous and crystalline ices on the southern pole of Enceladus, indicating intense ion bombardment in those latitudes and recent geological activity at the "tiger stripe" linea. Using a composite mosaic of the satellite, we map this distribution of ices according to a "crystallinity factor" and consider investigation of the time scale of the geologic activity on the surface of Enceladus based on amorphization rates in the outer Solar System.
Work funded by NASA.
Bauer James
Brown Harvey R.
Buratti Bonnie Jean
Jaumann Ralf
Momary Tom
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