Large-scale structure of Saturn's E-ring

Details Large-scale structure of Saturn's E-ring Large-scale structure of Saturn's E-ring

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3504203h&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 4, CiteID L04203

Physics

Plasma Physics

12

Planetary Sciences: Fluid Planets: Rings And Dust, Space Plasma Physics: Plasma Interactions With Dust And Aerosols (2461), Magnetospheric Physics: Planetary Magnetospheres (5443, 5737, 6033)

Scientific paper

Geysers on the recently discovered, geologically active south-polar region of the moon Enceladus are now recognized as the dominant source of material in Saturn's E ring. The ring was traditionally thought to span the region between 3 to 8 R S , where R S is the radius of Saturn. However, new in situ dust measurements indicate that the density of small grains might continuously extend far beyond these boundaries, and the E ring could reach even beyond the orbit of Titan (20.3 R S ). We report on the modeling results of the long-term evolution of dust particles comprising the E ring to show that grains from Enceladus could indeed reach the outskirts of Saturn's magnetosphere.

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