The Source of Saturn's G Ring

  title={The Source of Saturn's G Ring},
  author={M. Hedman and J. Burns and M. Tiscareno and C. Porco and Geraint H. Jones and E. Roussos and N. Krupp and C. Paranicas and S. Kempf},
  pages={653 - 656}
The origin of Saturn's narrow G ring has been unclear. We show that it contains a bright arc located 167,495.6 ± 1.3 km from Saturn's center. This longitudinally localized material is trapped in a 7:6 corotation eccentricity resonance with the satellite Mimas. The cameras aboard the Cassini spacecraft mainly observe small (1 to 10 micrometers) dust grains in this region, but a sharp decrease in the flux of energetic electrons measured near this arc requires that it also contain larger… Expand

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