Physics – Plasma Physics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010phpl...17j2904o&link_type=abstract
Physics of Plasmas, Volume 17, Issue 10, pp. 102904-102904-6 (2010).
Physics
Plasma Physics
5
Astrophysical Plasma, Electron Density, Plasma Density, Plasma Flow, Plasma Simulation, Plasma Temperature, Saturn, Space Vehicles, Plasma Dynamics And Flow, Laboratory Studies Of Space- And Astrophysical-Plasma Processes, Particle-In-Cell Method, Space Plasma Physics, Magnetohydrodynamics And Plasmas, Lunar, Planetary, And Deep-Space Probes
Scientific paper
We present the results of numerical simulations of the potential structure around an object in a streaming plasma with parameters relevant for the Cassini spacecraft passing through Saturn's plasma disk near the orbit of Enceladus. Two- and three-dimensional particle-in-cell codes have been used allowing the potential of the simulated spacecraft body to develop self-consistently through the collection of charge by its surface. The dependence of the density and potential profiles on ambient plasma density, electron temperature, and ion drift speed is discussed. The spacecraft floating potential values, found in the simulations, are compared to those deduced from the analysis of Cassini Langmuir probe characteristics.
Miloch Wojciech J.
Olson Jessica
Ratynskaia Svetlana
Yaroshenko Victoria V.
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