Plasma observations in the ring plane of Saturn

Details Plasma observations in the ring plane of Saturn Plasma observations in the ring plane of Saturn

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgr....9911063g&link_type=abstract

Journal of Geophysical Research, Volume 99, Issue A6, p. 11063-11078

Physics

Plasma Physics

14

Magnetospheric Physics: Planetary Magnetospheres, Planetology: Fluid Planets: Interactions With Particles And Fields, Planetology: Fluid Planets: Rings And Dust, Space Plasma Physics: Ionization Processes

Scientific paper

We present the first detailed analysis of the Voyager 2 plasma science (PLS) observations in the vicinity of the ring plane of Saturn. We find three types of plasma in the region between z=0.9 RS and z=-0.7 RS, namely, a tenuous and isotropic plasma derived from the large icy satellites, a dense and anisotropic plasma, and an anomalously anisotropic plasma in the ring plane region itself. We interpret these results to confirm a previously published hypothesis, according to which the natural Kronian inner magnetosphere plasma is derived from two sources, a tenuous plasma from the large icy satellites and a dense plasma from the atmosphere of the main rings. The anomalously anisotropic plasma is interpreted as the result of impacts of G ring ice motes. The in situ plasma measurements, thus, provide an additional delineation of the poorly observed G ring.

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