An Explanation for Neptune's Ring Arcs

  title={An Explanation for Neptune's Ring Arcs},
  author={Carolyn C. Porco},
  pages={1001 - 995}
  • C. Porco
  • Published 30 August 1991
  • Physics, Geology
  • Science
The Voyager mission revealed a complex system of rings and ring arcs around Neptune and uncovered six new satellites, four of which occupy orbits well inside the ring region. 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. Moreover, the arcs appear to be azimuthally confined by a resonant interaction with the same satellite, yielding a maximum… 
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