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Charged dust in the outer planetary magnetospheres. III - Satellite impact geometriesInterplanetary dust grains entering the Jovian plasmasphere become charged, and those in a certain size range get magneto-gravitationally trapped in the corotating plasmasphere. The trajectories of such dust grains intersect the orbits of one or more of the Galilean satellites. Orbital calculations of micron sized dust grains show that they impact the outermost satellite Callisto predominantly on its leading face, while they impact the inner three - Io, Europa and Ganymede - predominantly on the trailing face. These results are offered as an explanation of the observed brightness asymmetry between the leading and trailing faces of the outer three Galilean satellites. The albedo of Io is likely to be determined by its volcanism.
Document ID
19820030795
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hill, J. R.
(California Univ., San Diego La Jolla, CA, United States)
Mendis, D. A.
(California, University La Jolla, CA, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1981
Publication Information
Publication: Moon and the Planets
Volume: 25
Subject Category
Lunar And Planetary Exploration
Accession Number
82A14330
Funding Number(s)
CONTRACT_GRANT: NSG-7102
Distribution Limits
Public
Copyright
Other

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