Physics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....4874w&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #4874
Physics
Scientific paper
We have used a three dimensional global magnetohydrodynamic simulation of the interaction of the jovian magnetosphere with the solar wind to investigate the structure of the middle magnetosphere. A thin equatorial plasma sheet with plasma flowing around Jupiter dominates the middle magnetosphere. The azimuthal flow is largest in a band from 1800 LT across the night side magnetosphere to noon and between 30 RJ and 50RJ from Jupiter. Between noon and dusk the azimuthal flow decreases. The region of largest azimuthal flow is also characterized by smaller flows away from Jupiter with maximum outflow predawn. The region where the azimuthal flow decreases contains radial flow toward Jupiter. The simulated equatorial plasma sheet is much thinner in the morning magnetosphere than in the afternoon magnetosphere as has been inferred from observations. The plasma sheet is thickest where the radial flow is toward Jupiter. The configuration of the middle magnetosphere is only weakly dependent on solar wind dynamic pressure. The radial flows decrease when the IMF turns from northward to southward.
Ogino Takeshi
Walker Raymond
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