New Dust Belts of Uranus: One Ring, Two Ring, Red Ring, Blue Ring

@article{Pater2006NewDB,
  title={New Dust Belts of Uranus: One Ring, Two Ring, Red Ring, Blue Ring},
  author={I. de Pater and H. Hammel and S. Gibbard and M. Showalter},
  journal={Science},
  year={2006},
  volume={312},
  pages={92 - 94}
}
We compared near-infrared observations of the recently discovered outer rings of Uranus with Hubble Space Telescope results. We find that the inner ring, R/2003 U 2, is red, whereas the outer ring, R/2003 U 1, is very blue. Blue is an unusual color for rings; Saturn's enigmatic E ring is the only other known example. By analogy to the E ring, R/2003 U 1 is probably produced by impacts into the embedded moon Mab, which apparently orbits at a location where nongravitational perturbations favor… Expand
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