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A belt of moonlets in Saturn’s A ring

Author

Listed:
  • Miodrag Sremčević

    (Laboratory for Atmospheric and Space Physics, University of Colorado at Boulder, 392 UCB, Boulder, Colorado 80309-0392, USA)

  • Jürgen Schmidt

    (Nonlinear Dynamics, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany)

  • Heikki Salo

    (University of Oulu)

  • Martin Seiß

    (Nonlinear Dynamics, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany)

  • Frank Spahn

    (Nonlinear Dynamics, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany)

  • Nicole Albers

    (Laboratory for Atmospheric and Space Physics, University of Colorado at Boulder, 392 UCB, Boulder, Colorado 80309-0392, USA)

Abstract

Propelled to prominence The observation of four propeller-shaped disturbances in Saturn's A ring, detected in two Cassini images taken in 2004, was evidence for the presence of small boulder-sized moons embedded in the ring. There would be more, it was thought. There are more: eight new propeller features have been found in a later Cassini image sequence that covers the complete A ring. The moonlets causing these disturbances have radii of 30 to 70 metres, and may be remnants of the break up of a larger embedded moon that once orbited Saturn's ring at this location.

Suggested Citation

  • Miodrag Sremčević & Jürgen Schmidt & Heikki Salo & Martin Seiß & Frank Spahn & Nicole Albers, 2007. "A belt of moonlets in Saturn’s A ring," Nature, Nature, vol. 449(7165), pages 1019-1021, October.
    • Handle: RePEc:nat:nature:v:449:y:2007:i:7165:d:10.1038_nature06224
    DOI: 10.1038/nature06224
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