Abstract
AbstractBanded energy distributions of H+, O++, S+++, and O+ or S++ ions between 100 eV and ∼20 keV are consistently observed in Jupiter's magnetosphere mapping to M‐shells between M = 10–20. The bands correspond to flux enhancements at similar speeds for different ion species, providing the first evidence of simultaneous bounce‐resonant acceleration of multiple ion species in Jupiter's magnetosphere. Ion enhancements occur for energies at which the bounce frequencies of the trapped ions matched integer harmonics of the System‐III corotation frequency. The observations highlight a previously unknown interaction between corotation and bounce motion of <10 keV energy ions that is a fundamental and persistent process occurring in Jupiter's magnetosphere.
Published Version
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