Hybrid kinetic simulation of heavy ions in Mercury's Exosphere

Details Hybrid kinetic simulation of heavy ions in Mercury's Exosphere Hybrid kinetic simulation of heavy ions in Mercury's Exosphere

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsh31a0377p&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SH31A-0377

Physics

Plasma Physics

0328 Exosphere, 2753 Numerical Modeling, 6235 Mercury, 7800 Space Plasma Physics

Scientific paper

Earth-based observations have revealed relatively high densities (order of cm-3) of Na+ ions in Mercury's exosphere and tail region. Numerical simulations following particle trajectories in a static model of Mercury's magnetic field [Delcourt et al. 2002] also show that low-energetic particles of exospheric source can reach relatively high energies (a few hundreds of eV) in the magnetospheric lobes from enhanced centrifugal acceleration during ExB transport over the polar cap. Using 3D hybrid simulations, together with a basic model for releasing ions, we investigate the importance of heavy ions in the formation of Mercury's magnetosphere. Because of non-adiabatic motion it is necessary to follow the full motion of ions, with electrons treated as a background charge neutralizing fluid.

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