Other
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.p51f..04j&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #P51F-04
Other
2716 Energetic Particles: Precipitating, 2730 Magnetosphere: Inner, 2732 Magnetosphere Interactions With Satellites And Rings
Scientific paper
The spacecraft and telescopic data on the magnetospheric plasmas and on satellite and ring particle composition, and the laboratory data and models of radiation effects will be reviewed. These will then be used to describe our present understanding of the radiation-induced chemistry and sputtering of the surfaces of the satellites and rings particles in the Jovian and Saturnian magnetospheres. There are a number of significant differences between the processes determining the surface properties in these two systems. A prinicpal difference is that at Jupiter the active satellite Io is a source of sulfur that has been suggested to be implanted in the surfaces of the other Galilean satellites, while at Saturn the active satellite Enceladus is not only a source of plasma but is also a source of dust that appears to plate out on the surfaces of the neighboring satellites. These processes occur in competition with other resurfacing and surface alteration processes. Of particular interest in this talk is magnetospheric charged-particle-induced decomposition and sputtering of icy satellite and ring particles surfaces which is thought to play a role on all of these bodies.
Cassidy Timothy A.
Johnson Robert E.
Paranicas Chris
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