Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p33e1799d&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #P33E-1799
Physics
[5480] Planetary Sciences: Solid Surface Planets / Volcanism, [8450] Volcanology / Planetary Volcanism
Scientific paper
Investigations of cryovolcanic activity on Titan are numerous and could uncover important clues regarding processes taking place on and within Titan. Using the Synthetic Aperture RADAR (SAR) imager and the Visual and Infrared Mapping Spectrometer (VIMS) aboard the Cassini Spacecraft, many potential cryovolcanoes have been mapped. One of the leading candidates is an area known as Sotra Facula located at 39.8°W 12.5°S. In this region, SAR data identified a high peak located near a low basin which may have produced mass flows in the past. An investigation of Sotra Facula using VIMS data proved that the region is brighter than its immediate surroundings at 2.01μm, the band which provides the clearest view of Titan's surface. This varying brightness was not detected at 2.13μm and is, therefore, not due to methane clouds in Titan's atmosphere. Sotra Facula was detected in an image produced from coadded spectra between 4.9μm and 5.1μm, but the heat signature was not anomalous compared to the surrounding terrain. Furthermore, in a ratio of the 4.9μm to 5.1μm coadded spectra to the 2.01μm band, Sotra Facula was nearly undetectable. This spectroscopic investigation of Sotra Facula failed to yield any signature of a cryovolcano.
Buratti Bonnie Jean
Dalba P. A.
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