Saturn’s Curiously Corrugated C Ring

@article{Hedman2011SaturnsCC,
  title={Saturn’s Curiously Corrugated C Ring},
  author={Matthew M. Hedman and Joseph A. Burns and Michael W. Evans and Matthew S. Tiscareno and Carolyn C. Porco},
  journal={Science},
  year={2011},
  volume={332},
  pages={708 - 711}
}
Spacecraft observations show that Saturn’s and Jupiter’s rings preserve records of recent interplanetary debris collisions. In August 2009 the Sun illuminated Saturn’s rings from almost exactly edge-on, revealing a subtle corrugation that extends across the entire C ring. This corrugation’s amplitude is 2 to 20 meters and its wavelength is 30 to 80 kilometers. Radial trends in the corrugation’s wavelength indicate that this structure—like a similar corrugation previously identified in the D… Expand

Topics from this paper

Corrugations and eccentric spirals in Saturn's D ring: New insights into what happened at Saturn in 1983
Abstract Previous investigations of Saturn’s outer D ring (73,200–74,000 km from Saturn’s center) identified periodic brightness variations whose radial wavenumber increased linearly over time. ThisExpand
The Impact of Comet Shoemaker-Levy 9 Sends Ripples Through the Rings of Jupiter
TLDR
Jupiter’s main ring shows vertical corrugations reminiscent of those recently detected in the rings of Saturn, and the dominant pattern originated between July and October 1994, when the entire ring was tilted by about 2 kilometers. Expand
Cassini microwave observations provide clues to the origin of Saturn's C ring
Abstract Despite considerable study, Saturn's rings continue to challenge current theories for their provenance. Water ice comprises the bulk of Saturn's rings, yet it is the small fraction ofExpand
Observations of Ejecta Clouds Produced by Impacts onto Saturn’s Rings
TLDR
Observations of dusty clouds in Saturn's rings are reported, which are interpreted as resulting from impacts onto the rings that occurred between 1 and 50 hours before the clouds were observed, and the largest of these clouds was observed twice; its brightness and cant angle evolved in a manner consistent with this hypothesis. Expand
A new pattern in Saturn’s D ring created in late 2011
Abstract Images obtained by the Cassini spacecraft between 2012 and 2015 reveal a periodic brightness variation in a region of Saturn’s D ring that previously appeared to be rather featureless.Expand
Noncircular features in Saturn’s rings II: The C ring
Abstract We present a comprehensive survey of sharp-edged features in Saturn’s C ring, using data from radio and stellar occultation experiments carried out by the Cassini spacecraft over a period ofExpand
A new pattern in Saturn’s D ring created in late 2011
Images obtained by the Cassini spacecraft between 2012 and 2015 reveal a periodic brightness variation in a region of Saturn’s D ring that previously appeared to be rather featureless. Furthermore,Expand
KRONOSEISMOLOGY: USING DENSITY WAVES IN SATURN'S C RING TO PROBE THE PLANET'S INTERIOR
Saturn's C ring contains multiple spiral patterns that appear to be density waves driven by periodic gravitational perturbations. In other parts of Saturn's rings, such waves are generated byExpand
Chemical interactions between Saturn’s atmosphere and its rings
TLDR
The Cassini Ion Neutral Mass Spectrometer (INMS) measured the composition of Saturn’s upper atmosphere and its chemical interactions with material originating in the rings, finding a large mass of infalling material that has implications for ring evolution. Expand
Changes in a Dusty Ringlet in the Cassini Division after 2010
A dusty ringlet designated R/2006 S3, also known as the "Charming Ringlet", is located around 119,940 km from the center of Saturn within the Laplace Gap in the Cassini Division. Prior to 2010, theExpand
...
1
2
3
...

References

SHOWING 1-10 OF 41 REFERENCES
The Impact of Comet Shoemaker-Levy 9 Sends Ripples Through the Rings of Jupiter
TLDR
Jupiter’s main ring shows vertical corrugations reminiscent of those recently detected in the rings of Saturn, and the dominant pattern originated between July and October 1994, when the entire ring was tilted by about 2 kilometers. Expand
The Structure of Jupiter's Ring System as Revealed by the Galileo Imaging Experiment
The jovian ring system was observed during four orbits of Galileo's nominal mission, when 25 clear-filter images of the rings were taken at spatial resolutions of 23 to 134 km/pixel; the ringExpand
Saturn's dynamic D ring
The Cassini spacecraft has provided the first clear images of the D ring since the Voyager missions. These observations show that the structure of the D ring has undergone significant changes overExpand
Resonance structures in Saturn's rings probed by radio occultation: II. Results and interpretation
Abstract Twenty-nine wave features in the Voyager 1 radio occultation profiles of Saturn's rings are examined, individually and comparatively, by the wavelength dispersion and waveform modelingExpand
Resonance structures in Saturn's rings probed by radio occultation. I - Methods and examples
Abstract Optical depth profiles of Saturn's rings derived from Voyager 1 radio occultation reveal a remarkable array of wave-like features. Many are the signatures of spiral density waves and bendingExpand
Saturn's rings: Particle size distributions for thin layer models
Abstract The small physical thickness of Saturn's rings requires that radio occultation observations be interpreted using scattering models with limited amounts of multiple scatter. A new model inExpand
Planetary Rings
Planetary rings are those strikingly flat and circular appendages embracing all the giant planets in the outer Solar System: Jupiter, Saturn, Uranus, and Neptune. Like their cousins, the spiralExpand
Density waves in Cassini UVIS stellar occultations: 1. The Cassini Division
Abstract We analyze density waves in the Cassini Division of Saturn's rings revealed by multiple stellar occultations by Saturn's rings observed with the Cassini Ultraviolet Imaging Spectrograph. TheExpand
The Titan -1:0 Nodal Bending Wave in Saturn's Ring C
TLDR
The most prominent oscillatory feature observed in the Voyager 1 radio occultation of Saturn's rings is identified as a one-armed spiral bending wave excited by Titan's -1:0 nodal inner vertical resonance, which suggests that surface mass density is not constant in the wave region. Expand
Observation of a tilt of Titan's middle-atmospheric superrotation
Maps of isotherms on surfaces of constant pressure in Titan's middle atmosphere encircle the poles but show an offset, implying that the mean zonal flow has an axis of symmetry that is tiltedExpand
...
1
2
3
4
5
...