The Source of Saturn's G Ring

@article{Hedman2007TheSO,
  title={The Source of Saturn's G Ring},
  author={Matthew M. Hedman and Joseph A. Burns and Matthew S. Tiscareno and Carolyn C. Porco and Geraint H. Jones and Elias Roussos and Norbert Krupp and C. P. Paranicas and Sascha Kempf},
  journal={Science},
  year={2007},
  volume={317},
  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… 
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References

SHOWING 1-10 OF 54 REFERENCES
Absorption of energetic protons by Saturn's ring g. Progress report for FY83
In a preliminary paper on Pioneer 11 observations of energetic particles in Saturn's inner magnetosphere, Van Allen et al. 1980a reported a distinctive absorption feature at a radial distance r
The confinement of Neptune's ring arcs by the moon Galatea
TLDR
It is reported that a resonance based on Galatea's eccentricity is responsible for the angular confinement of the arcs, and the mass of the arc affects the precession of GalateA's eccentric orbit, which will enable a mass estimate from future observations ofGalatea'S eccentricity.
Seeing Ghosts: Photometry of Saturn's G Ring
Abstract Saturn's faint and narrow G Ring is only visible to the eye in two Voyager images, each taken at a rather high solar phase angle of ∼160°. In this paper we introduce a new photometric
An Explanation for Neptune's Ring Arcs
TLDR
Analysis of Voyager data shows that a radial distortion with an amplitude of approximately 30 kilometers is traveling through the ring arcs, a perturbation attributable to the nearby satellite Galatea, and the arcs appear to be azimuthally confined by a resonant interaction with the same satellite.
Evolution of the G Ring and the Population of Macroscopic Ring Particles
Abstract An evolutionary model of the G Ring incorporating theoretical results from R. M. Canup and L. W. Esposito (1995, Icarus 113, 331–352) yields a complete particle size distribution that is
HST High-Resolution Backscatter Image of Saturn's G Ring
Abstract On 14 October 1996, we imaged Saturn's faint G ring with the Hubble Space Telescope's WFPC2 Planetary Camera. This is the highest resolution image of the G ring ever obtained in
G Ring Particle Sizes Derived from Ring Plane Crossing Observations
Abstract The Saturn ring plane crossings in 1995–1996 allowed observers using the Hubble Space Telescope and the W. M. Keck telescope to image the planet's diffuse rings from 0.3 to 2.2 μm at a
Enceladus' Varying Imprint on the Magnetosphere of Saturn
TLDR
The bombardment of Saturn's moon Enceladus by >20–kiloelectron volt magnetospheric particles causes particle flux depletions in regions magnetically connected to its orbit, which provide key radial diffusion coefficients for energetic electrons and an independent measure of the inner magnetosphere's rotation velocity.
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