Jupiter's ring system - New results on structure and particle properties

Details Jupiter's ring system - New results on structure and particle properties Jupiter's ring system - New results on structure and particle properties

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...69..458s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 69, March 1987, p. 458-498.

Physics

64

Jupiter Rings, Particle Size Distribution, Planetary Structure, Image Analysis, Satellite Imagery, Voyager Project, Jupiter, Rings, Structure, Particles, Physical Properties, Comparisons, Voyager Missions, Imagery, Size, Thickness, Width, Radius, Boundaries, Features, Brightness, Distribution, Optical Properties, Depth, Grains, Halos, Symmetry, Scattering, Analysis, Techniques, Photometry, Diagrams, Models, Shadows, Intensity, Color, Spacecraft Observations, Diffusion

Scientific paper

A reexamination of the Voyager images has yielded a refined understanding of Jupiter's diffuse ring system. The system is composed of a relatively bright narrow ring and inner toroidal halo, in addition to the exterior "gossamer" ring discussed elsewhere. The main ring is ≡7000 km wide and has an abrupt outer boundary at a radius of 129,130±100 km. The smallest ring particles obey a power law size distribution, and have an optical depth of 1 - 6×10-6 for grains up to 100 μm in radius. The largest bodies are dark, rough, and red, and of comparable total optical depth. The halo arises at the bright ring's inner boundary and rapidly expands inward to a ≡20,000 km full thickness, but remains symmetric about the ring plane. It disappears from sight at a radius of 90,000 km. The halo particles appear to obey a size distribution similar to that of the micron-sized population in the main ring, and comprise a similar optical depth.

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