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Title:
Jupiter's ring system - New results on structure and particle properties
Authors:
SHOWALTER, M. R.; BURNS, J. A.; CUZZI, J. N.; POLLACK, J. B.
Affiliation:
AB(Cornell University, Ithaca, NY) AD(NASA, Ames Research Center, Moffett Field, CA)
Journal:
Icarus (ISSN 0019-1035), vol. 69, March 1987, p. 458-498.
Publication Date:
03/1987
Category:
Lunar and Planetary Exploration; Jupiter
Origin:
STI; LPI [AN-870151%J]
NASA/STI Keywords
JUPITER RINGS, PARTICLE SIZE DISTRIBUTION, PLANETARY STRUCTURE, IMAGE ANALYSIS, SATELLITE IMAGERY, VOYAGER PROJECT
Bibliographic Code:
1987Icar...69..458S

Abstract

Jupiter's diffuse ring system is upon reexamination of Voyager images noted to be composed of a relatively bright narrow ring and an inner toroidal halo as well as the 'gossamer' exterior ring, while the previously suspected inner disk is missing. Several narrow, bright features are visible in the main ring, and are suggested to be related in some way to Adrastea and Metis. The smallest ring particles and the dark, rough, red largest bodies both have total optical depths of 1-6 x 10 to the -6th. After arising at the bright ring's inner boundary, the halo rapidly expands inward to a 20,000-km thickness, and disappears at a radius of 90,000 km halfway between the main ring and the planet's cloudtops. 
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