Periodic features in Saturn's F ring - Evidence for nearby moonlets

Details Periodic features in Saturn's F ring - Evidence for nearby moonlets Periodic features in Saturn's F ring - Evidence for nearby moonlets

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.345..695k&link_type=abstract

Nature (ISSN 0028-0836), vol. 345, June 21, 1990, p. 695-697. Research supported by NASA.

Physics

32

Gravitational Effects, Moonlets, Planetary Orbits, Saturn Rings, Perturbation Theory, Spatial Distribution, Voyager Project, Saturn, Rings, F Ring, Periodicity, Features, Moonlets, Prometheus, Shepherd Satellites, Pandora, Satellites, Spacecraft Observations, Voyager Mission, Wavelengths, Waves, Origin, Formation, Perturbations, Gravity Effects, Particles, Structure, Procedure, Brightness, Waves

Scientific paper

The Saturn F ring's shepherd satellites, Pandora and Prometheus, have been suspected of causing the periodicities observed in the ring. To test this idea, a selection of the best available Voyager images of the ring were examined by applying an FFT technique to azimuthal profiles from spacecraft ring images. Only a few distinct periodic signals, including one due to the inner shepherd, are visible. It is suggested that these periodic signatures provide evidence for so-far-undiscovered satellites next to this puzzling ring.

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