A Multi-fluid Model of Enceladus: Plume Interactions With Saturn's Local Magnetospheric Flow

Details A Multi-fluid Model of Enceladus: Plume Interactions With Saturn's Local Magnetospheric Flow A Multi-fluid Model of Enceladus: Plume Interactions With Saturn's Local Magnetospheric Flow

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.p51f..07p&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #P51F-07

Physics

2732 Magnetosphere Interactions With Satellites And Rings, 2753 Numerical Modeling, 2756 Planetary Magnetospheres (5443, 5737, 6033), 6275 Saturn, 6280 Saturnian Satellites

Scientific paper

The Cassini spacecraft discovered a plume of water ice particles and dust grains jetting outward from the southern polar region of Saturn's moon Enceladus. The extent to which this plume is a source of water-group ions to the Saturnian magnetosphere has yet to be fully determined. Using multi-fluid simulations we present a preliminary look at the local interaction of Enceladus and its plume with the incident flow of Saturn's rotating magnetosphere. We consider a plume of water-group ions constrained to the southern pole with a range of predicted mass fluxes as well as a uniform distribution of ions from sputtering which would make up Enceladus' diffuse ionosphere. In tracking the ions sourced from the plume, from surface sputtering and from Saturn's magnetosphere we examine the dispersion of the plume as well as its effects on Saturn's magnetosphere local to Enceladus. When possible, comparisons are made to observations collected during the spacecraft encounters with Enceladus.

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