Some possible effects of Jupiter's rings on the Jovian inner plasmasphere

Details Some possible effects of Jupiter's rings on the Jovian inner plasmasphere Some possible effects of Jupiter's rings on the Jovian inner plasmasphere

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...44..361l&link_type=abstract

(IAU, American Astronautical Society, COSPAR, University of Hawaii, and NASA, Colloquium on the Satellites of Jupiter, 57th, Kai

Astronomy and Astrophysics

Astronomy

10

Jupiter Atmosphere, Jupiter Rings, Magnetic Field Configurations, Planetary Magnetospheres, Plasma Density, Plasmasphere, Cold Plasmas, Exosphere, Lines Of Force, Planetary Ionospheres, Planetary Magnetic Fields

Scientific paper

The ionospheric plasma density on magnetic field lines threading the Jovian rings which are located inside approximately 1.8 Jupiter radii on the jovigraphic equatorial plane is calculated by using a rotating ion exosphere model. It is found that the bulk of the ionospheric particles on these field lines are on ballistic trajectories. On field lines approximately symmetric with respect to the jovigraphic equator, the ring, which to a first approximation would absorb the population of trapped particles, consequently has little effect. On field lines which are made asymmetric by the higher-order multipoles of Jupiter's field and the tilt of the dipole axis, the rings may have a significant effect. It is suggested that better definition of the rings' atmospheric and ionospheric properties is required to model these localized effects. If the rings are found to be an important plasma source for the inner magnetosphere, the present exospheric model will have to be revised.

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