Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p23b1376s&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #P23B-1376
Physics
5405 Atmospheres (0343, 1060), 5443 Magnetospheres (2756), 6280 Saturnian Satellites
Scientific paper
Time variability of Enceladus' gas plume is deduced from a joint investigation of Cassini spacecraft magnetic field data obtained during the first three flybys E0, E1 and E2 and neutral density measurements during the E2 flyby with a model that describes Enceladus' plasma interaction with individual jets. We infer a total plume content of ~7 × 1032 H2O molecules corresponding to a mass loss rate of ~1600 kg/s for the E0 flyby and ~9 × 1031 H2O molecules corresponding to a mass loss of ~200 kg/s for the E1 and E2 flybys. The magnetic field measurements also indicate upstream/downstream changes of the plume activity locations. On the first three Enceladus flybys Cassini did not fly through the densest parts of the plumes, which were a factor of 10-100 times higher at the same altitudes.
Dougherty K. M. K. M.
Neubauer Fritz Manfred
Russell Christopher T.
Saur Joachim
Schilling Nico
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