Apparent thickness of Saturn's rings

Details Apparent thickness of Saturn's rings Apparent thickness of Saturn's rings

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.289..447b&link_type=abstract

Nature, vol. 289, Feb. 5, 1981, p. 447-450. Centre National de la Recherche Scientifique

Astronomy and Astrophysics

Astronomy

32

Astronomical Photometry, Saturn Rings, Thickness, Charge Coupled Devices, Electronography, Inelastic Collisions, Particle Collisions, Radiant Flux Density, Saturn, Rings, Thickness, Dynamics, Evolution, Particles, Collisions, Photometry, Earth-Based Observations, Brightness, E Ring, Data, Observations, Mass, Size, Velocity, Satellites, Perturbations, Energy

Scientific paper

The determination of the physical thickness of Saturn's rings is crucial for a better understanding of the nature, the dynamics and the evolution of a system of colliding ring particles. Ground-based observations with electronographic cameras and CCD during the transit of the earth through the ring plane in March 1980, reveal a photometric apparent thickness of 1.4 + or - 0.3 km. This value is only an upper limit of the local ring thickness, which is not observable from the earth or from flybys. The observed brightness includes the contribution of the E ring, of large chunks and condensations and of the warping of the disk. Theory predicts a local thickness of the order of only a few mean particles radii.

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