- [ONLINE] SM21A-08: Exploring the energy transfer of Alfven waves from the Io torus to the ionosphere of Jupiter
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Drew Coffin, Boston University (First Author, Presenting Author)
Paul Withers, Boston University
Dustin Buccino, Jet Propulsion Laboratory, California Institute of Technology
Marzia Parisi, Jet Propulsion Laboratory, California Institute of Technology
Andrea Caruso, Centro Interdipartimentale di Ricerca Industriale - Aerospaziale
Peter Delamere, University of Alaska Fairbanks
Peter Damiano, University of Alaska Fairbanks
Ryan Park, NASA Jet Propulsion Laboratory
Paul Steffes, Georgia Institute of Technology Main Campus
Scott Bolton, Southwest Research Institute
Jupiter's intensely volcanic moon Io puts out a ton per second of material that forms a torus (donut) of disk along its orbit, which is then turned into electrically charged plasma by interactions with charged particles in Jupiter's magnetosphere. The motion of the moon through this torus triggers waves that cascade through the torus and travel along magnetic field lines up to the planet where the energy is then deposited into the planet. Juno is a spacecraft in polar orbit around Jupiter, meaning frequent observation of the high-latitude parts of the planet including the deposition regions for Alfven waves, a bright auroral feature called the Io footprint. This presentation will aim to combine an equatorial chemistry model of the torus, a propagation model for Alfven waves along the field line, and simulations of the Jovian atmosphere with Juno-measured electron densities to present a complete simulation of interesting observed features in the electron profiles.
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