Physics
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...10314987w&link_type=abstract
Journal of Geophysical Research, Volume 103, Issue A7, p. 14987-14994
Physics
3
Magnetospheric Physics: Planetary Magnetospheres, Magnetospheric Physics: Plasma Waves And Instabilities, Planetology: Solar System Objects: Jovian Satellites, Planetology: Fluid Planets: Magnetospheres
Scientific paper
The dominant features of Jovian whistlers observed by Voyager 1 in the inner cold torus around RJ~5.3 are studied using the technique of ray tracing with an offset tilted dipole. These whistlers are unducted, and the electron density in the inner plasmasphere plays a controlling role in the access of whistlers to the cold torus. The upper frequency cutoff of inner zone whistlers allows a firm limit to be placed on the minimum electron density 3-5 cm-3 at higher latitudes in the inner plasmasphere around L~5.3, a region where no spacecraft have ever been. Backward ray tracing from the observation location is used to determine the source location at the top of the Jovian atmosphere, and it is shown to be consistent with the latitude of lightning events observed by Voyager 1.
Horne Richard B.
Kurth Willaim S.
Mansergh Thorne Richard
Wang Kai
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