Physics
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000sci...288.1204k&link_type=abstract
Science, Volume 288, Issue 5469, pp. 1204-1208 (2000).
Physics
38
Scientific paper
Unlike any volcanic behavior ever observed on Earth, the plume from Prometheus on Io has wandered 75 to 95 kilometers west over the last 20 years since it was first discovered by Voyager and more recently observed by Galileo. Despite the source motion, the geometric and optical properties of the plume have remained constant. We propose that this can be explained by vaporization of a sulfur dioxide and/or sulfur ``snowfield'' over which a lava flow is moving. Eruption of a boundary-layer slurry through a rootless conduit with sonic conditions at the intake of the melted snow can account for the constancy of plume properties.
Carlson Robert
Keszthelyi Laszlo
Kieffer Susan W.
Lopes-Gautier Rosaly
McEwen Alfred
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