Physics
Scientific paper
Aug 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979m%26p....21....3h&link_type=abstract
Moon and the Planets, vol. 21, Aug. 1979, p. 3-16.
Physics
35
Charged Particles, Earth Magnetosphere, Gas Giant Planets, Interplanetary Dust, Planetary Atmospheres, Brightness, Electrostatics, Galilean Satellites, Jupiter Atmosphere, Trapped Particles
Scientific paper
Typical interplanetary grains (Brownlee types) and the physical and dynamical processes associated with their entry into the Jovian magnetosphere are discussed. The charging and subsequent distribution of interplanetary dust grains entering the magnetosphere as well as the basic aspects of orbital dynamics of charged grains are examined. Results showed that all negatively charged fragments are strongly attracted towards the planet by the radial corotational electric field, while some are stably trapped, suggesting that the sudden enhancement by about two orders of magnitude of the interplanetary dust flux, measured at 30 Jupiter radii by Pioneer 10, is a combination of these two results. The similarity in brightness asymmetries between the Jovian and Saturnian satellites leads to the expectation that Saturn's magnetic moment and spin are parallel with the limit of plasma corotational lying between satellites Rhea and Iapetus.
Hill Richard J.
Mendis Asoka D.
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