Physics
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...103..225o&link_type=abstract
Journal of Geophysical Research, vol. 10, p. 225
Physics
28
Jupiter Atmosphere, Planetary Magnetospheres, Solar Wind, Three Dimensional Models, Solar Planetary Interactions, Dynamic Pressure, Magnetopause, Plasma Layers, Planetary Rotation, Plasma Pressure, Vortices
Scientific paper
We have developed a 3D global MHD simulation of the interaction between the solar wind and a rapidly rotating magnetosphere and applied it to Jupiter. For fixed solar wind dynamic pressure the rotating model Jovian magnetosphere extends farther toward the sun and has greater extent in the east-west direction than a model without rotation but is little different in the north-south direction. There is a pronounced dawn-dusk asymmetry with the dawn magnetopause displaced farther from Jupiter. The middle Jovian magnetosphere contains a thin plasma sheet dominated by rotating plasmas. On the dayside this plasma sheet thickens near the magnetopause. Near the dawnside magnetopause where rotating Jovian convection is opposed to the solar wind induced flow, a pressure ridge forms where the magnetospheric flow slows and forms a stagnation region. In the magnetotail the rotating flow is diverted tailward. For x less than -100 Rj x-type and o-type neutral lines form. When the solar wind pressure was decreased, the boundaries moved away from Jupiter and the dayside field lines became stretched into a more tail-like configuration. A flow vortex formed in the evening middle magnetosphere.
Galland Kivelson Margaret
Ogino Tatsuki
Walker Raymond J.
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