Earth, Moon, and Planets

, Volume 97, Issue 3–4, pp 189–201 | Cite as

Analysing the New Saturnian Rings, R/2004 S1 and R/2004 S2

  • S. M. Giuliatti Winter
  • R. Sfair
  • D. C. Mourão
  • T. A. Bastos


The Cassini-Huygens arrival into the Saturnian system brought a large amount of data about the satellites and rings. Two diffuse rings were found in the region between the A ring and Prometheus. R/2004 S1 is coorbital to Atlas and R/2004 S2 is close to Prometheus. In this work we analysed the closest approach between Prometheus and both rings. As a result we found that the satellite removes particles from R/2004 S2 ring. Long-term numerical simulations showed that some particles can cross the F ring region . The well known region of the F ring, where small satellites are present and particles are being taking from the ring, gains a new insight with the presence of particles from R/2004 S2 ring. The computation of the Lyapunov Characteristic Exponent reveled that the R/2004 S2 ring lies in a chaotic region while R/2004 S1 ring and Atlas are in a stable region. Atlas is responsible for the formation of three regimes in the R/2004 S1 ring, as expected for a satellite embedded in a ring.


Lyapunov Characteristic Exponent numerical simulations planetary rings 


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SMGW thanks FUNDUNESP, RS and DCM thank CNPq and TAB thanks PAE/UNESP for the financial support.


  1. Borderies N. et al. (1983) Icarus 53:84–89CrossRefADSGoogle Scholar
  2. Dermott S. F., Murray C. D. (1981). Icarus 48:1–11CrossRefADSGoogle Scholar
  3. Giuliatti Winter S. M., et al. (2000) Plan. Space Sci. 48:817–827CrossRefADSGoogle Scholar
  4. Giuliatti Winter S. M., et al. (2004). Astron. Astrophys. 418:759–764zbMATHCrossRefADSGoogle Scholar
  5. Goldreich P., Tremaine S. (1979) Nature 277:97–99CrossRefADSGoogle Scholar
  6. Hänninen J. (1993) Icarus 103:104–123CrossRefADSGoogle Scholar
  7. Lissauer J. J., Peale S. S. (1986). Icarus 67:358–374CrossRefADSGoogle Scholar
  8. Murray C. D., Dermott S. (1999). Solar System Dynamics. Cambridge Univ Press, LondonzbMATHGoogle Scholar
  9. Murray C. D., Giuliatti Winter S. M. (1996). Nature 380:139–141CrossRefADSGoogle Scholar
  10. Murray C. D. et al. (1997). Icarus 129:304–316CrossRefADSGoogle Scholar
  11. Murray C. D. et al. (2005) Nature 437:1326–1329CrossRefADSGoogle Scholar
  12. Null G. W. et al. (1981). Astron. J. 86:456–468CrossRefADSGoogle Scholar
  13. Press, W. H., et al.: 1990, Numerical Recipes, Cambridge University Press, CambridgeGoogle Scholar
  14. Porco C. C. et al. (2005). Science 307:1226–1236CrossRefADSGoogle Scholar
  15. Showalter M. R., Burns J. A. (1982) Icarus 52:526–544CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • S. M. Giuliatti Winter
    • 1
  • R. Sfair
    • 1
  • D. C. Mourão
    • 1
  • T. A. Bastos
    • 1
  1. 1.UNESP – Campus de GuaratinguetáGuaratinguetaSão PauloBrazil

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