Abstract
<p>The Juno Waves instrument measured plasma waves associated with Ganymede's magnetosphere during its flyby on 7 June, day 158, 2021.  Three distinct regions were identified including a magnetotail/wake, and nightside and dayside regions in the main magnetosphere distinguished by their electron densities and associated variability. The main magnetosphere includes electron cyclotron harmonic emissions including a band at the upper hybrid frequency, as well as whistler-mode chorus and hiss. These waves likely interact with energetic electrons in Ganymede’s magnetosphere by pitch angle scattering and/or accelerating the electrons.  The magnetotail/wake is accentuated by low-frequency turbulence and electrostatic solitary waves.   Radio emissions observed before and after the flyby likely have their source in Ganymede’s magnetosphere. </p>
Published Version
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