Images of Neptune's ring arcs obtained by a ground-based telescope
@article{Sicardy1999ImagesON, title={Images of Neptune's ring arcs obtained by a ground-based telescope}, author={Bruno Sicardy and François J. Roddier and Claude A. Roddier and Ettore Perozzi and John e. Graves and Olivier Guyon and Malcolm Northcott}, journal={Nature}, year={1999}, volume={400}, pages={731-733} }
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 occultations in 1984, they appear to have persisted, perhaps through a gravitational resonance effect involving the satellite Galatea. Here we report ground-based observations of the ring arcs, obtained using an adaptive optics system. Our data, and those obtained using the Hubble Space Telescope…
45 Citations
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