正 A brief review of our courrent understanding of the interaction between the innermost Galilean satellite,Io,and Jupiter’s magnetosphere is presented.Particular consideration is given to the neutral clouds and lo plasma torus which have been monitored by ground-based and Earth-orbiting observations for the past 25 years.Detailed investigation of observed phenomena in the neutral clouds has revealed several processes which have a direct bearing on the nature of the interaction and suggest that a revision of the existing concept is necessary.Similarly.observed variability in the torus indicates the presence of complex plasma processes which at present remain unexplained.Areas where further research is necessary are outlined.
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