Models of the Plasma Sheet at Jupiter

Details Models of the Plasma Sheet at Jupiter Models of the Plasma Sheet at Jupiter

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm11c..09b&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM11C-09

Physics

[2756] Magnetospheric Physics / Planetary Magnetospheres

Scientific paper

We develop quantitative models of plasma conditions in the magnetosphere of Jupiter and evaluate how these properties vary with radial distance, latitude, longitude, local time and time. We combine in situ plasma measurements with models of the magnetic field and of the plasma composition (derived from physical chemistry) to extrapolate the plasma density along flux tubes and map out the density distribution in meridian planes at different local times. We explore the effects of thermal anisotropy and supra-thermal velocity distributions on the density maps. We also combine estimates with the mass loss with observations of the radial gradient of mass in the plasmasheet to obtain profiles of radial transport. An objective of this study is to derive a quantitative description of the heating necessary to produce the high-beta plasma in the outer magnetosphere which we believe to be a key component of global models of the dynamics of the jovian magnetosphere.

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