Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufm.p53a1454l&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #P53A-1454
Physics
6025 Interactions With Solar Wind Plasma And Fields, 6028 Ionospheres: Structure And Dynamics, 6280 Saturnian Satellites, 2732 Magnetosphere Interactions With Satellites And Rings
Scientific paper
The interaction of Titan's ionosphere with Saturn's magnetosphere plasma is complicated by the significant size of the ion gyroradii relative to the size of Titan. Voyager 1 found a two species plasma consisting of H+ and N+ with number densities of 0.1 and 0.2 cm-3 respectively, near Titan. The gyroradii of the incident N+ was found to be 2.25 RT (1 RT = 2575 km), while the gyroradii of the H+ was smaller at 0.16 RT. The plasma conditions near Titan at TA could be significantly different from the plasma conditions during the Voyager encounter, since Titan is located closer to the sub-solar point in the magnetosphere. Depending on the solar wind conditions present at TA Titan may find itself in the outer magnetosphere, the magnetosheath or even the solar wind. We investigate Titan's interaction with its surrounding plasma environment during TA using a global hybrid simulation with predicted upstream conditions from a global MHD simulation of Saturn's magnetosphere.
Brecht Stephen H.
Hansen Kenneth Calvin
Ledvina Stephen A.
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