Corpus ID: 19977838

Chaotic Motions of F-Ring Shepherds

@article{Goldreich2002ChaoticMO,
  title={Chaotic Motions of F-Ring Shepherds},
  author={P. Goldreich and N. Rappaport},
  journal={arXiv: Astrophysics},
  year={2002}
}
  • P. Goldreich, N. Rappaport
  • Published 2002
  • Physics
  • arXiv: Astrophysics
  • Recent HST images of the Saturnian satellites Prometheus and Pandora show that their longitudes deviate from predictions of ephemerides based on Voyager images. Currently Prometheus is lagging and Pandora leading these predictions by somewhat more than 20°. We show that these discrepancies are fully accounted for by gravitational interactions between the two satellites. These peak every 24.8 days at conjunctions and excite chaotic perturbations. The Lyapunov exponent for the Prometheus-Pandora… CONTINUE READING
    1 Citations

    Tables from this paper

    Coorbital Periodic Orbits in the Three Body Problem
    • 12
    • PDF

    References

    SHOWING 1-10 OF 25 REFERENCES
    The Dynamics of Planetary Rings
    • 289
    Observations of Saturn's Ring-Plane Crossings in August and November 1995
    • 131
    Orbits of Saturn's F ring and its shepherding satellites
    • 46
    Unsolved problems in planetary ring dynamics
    • 63