Stability of Neptune's ring arcs in question

@article{Dumas1999StabilityON,
  title={Stability of Neptune's ring arcs in question},
  author={Christophe Dumas and Richard Terrile and Bradford A. Smith and Glenn Schneider and Eric Edward Becklin},
  journal={Nature},
  year={1999},
  volume={400},
  pages={733-735}
}
Although all four of the gas-giant planets in the Solar System have ring systems, only Neptune exhibits ‘ring arcs’—stable clumps of dust that are discontinuous from each other. Two basic mechanisms for confining the dust to these arcs have been proposed. The firstrelies on orbital resonances with two shepherding satellites, while the second invokes a single satellite (later suggested to be Galatea) to produce the observed ring arc structures. Here we report observations of the ring arcs and… 
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41 Citations
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41 Citations

The confinement of Neptune's ring arcs by the moon Galatea
TLDR
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Images of Neptune's ring arcs obtained by a ground-based telescope
Neptune has a collection of incomplete narrow rings, known as ring arcs, which should in isolation be destroyed by differential motion in a matter of months. Yet since first discovered by stellar…
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The Dark Side of the Rings of Uranus
TLDR
It is concluded that the dust distribution within the rings of Uranus has changed substantially since the 1986 Voyager encounter and that it occurs on much larger scales than has been seen in other planetary systems.
Dynamics and Composition of Rings
Planetary rings are found around all four giant planets of our solar system. These collisional and highly flattened disks exhibit a whole wealth of physical processes involving dust grains up to…
Dust grain orbital behavior around Neptune
Dusty Rings and Circumplanetary Dust: Observations and Simple Physics
Each giant planet is encircled by planetary rings, usually composed of particles centimeters to meters in radius, but each system also contains regions where much smaller dust grains predominate.…
Disentangling Saturn's F Ring. I. Clump orbits and lifetimes
The Origin of Planetary Ring Systems
This chapter of the book Planetary Ring Systems addresses the origin of planetary rings, one of the least understood processes related to planet formation and evolution. Whereas rings seem ubiquitous…
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References

SHOWING 1-10 OF 26 REFERENCES
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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.
Shepherding model for Neptune's arc ring
An incomplete arc ring has recently been discovered around Neptune1. Here, a model to explain the confinement of this ring is developed. The ring may be azimuthally confined near a triangular…
Images of Neptune's ring arcs obtained by a ground-based telescope
Neptune has a collection of incomplete narrow rings, known as ring arcs, which should in isolation be destroyed by differential motion in a matter of months. Yet since first discovered by stellar…
The Dynamics of the Neptunian Adams Ring's Arcs
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