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A Preliminary Study of Magnetosphere-Ionosphere-Thermosphere Coupling at Jupiter: Juno Multi-Instrument Measurements and Modeling Tools
Gérard, Jean-Claude; André, Nicolas; Louarn, Philippe +20 more
The dynamics of the Jovian magnetosphere are controlled by the interplay of the planet's fast rotation, its main iogenic plasma source and its interaction with the solar wind. Magnetosphere-Ionosphere-Thermosphere (MIT) coupling processes controlling this interplay are significantly different from their Earth and Saturn counterparts. At the ionosp…
Modeling of Possible Plume Mechanisms on Europa
Wurz, Peter; Vorburger, Audrey
Plumes spewing water high above Europa's surface have been inferred from several observation campaigns in the past decade. Whereas the occasional existence of plumes on Europa has thus been confirmed, the origin of the plumes remains uncertain. Most notably, it is still unclear whether the inferred plumes are of oceanic origin, possibly containing…
Morphology of Jupiter's Polar Auroral Bright Spot Emissions via Juno UVS Observations
Bonfond, B.; Vogt, M. F.; Gérard, J. -C. +12 more
Since 2016, the Juno UVS (Ultraviolet Spectrograph) instrument has been taking spectral images of Jupiter's auroras in their full extent, including the nightside, which cannot be viewed from Earth. We present a systematic analysis of features in Jupiter's polar auroras called auroral bright spots, which were observed by Juno UVS during the first 2…
Simultaneous Observation of an Auroral Dawn Storm With the Hubble Space Telescope and Juno
Wilson, R. J.; Kurth, W. S.; Bagenal, F. +7 more
On July 13, 2016, the Hubble Space Telescope observed the onset of a dawn storm in Jupiter's northern ultraviolet aurora, while the NASA Juno spacecraft simultaneously traversed the dawnside outer magnetosphere. This represents the first concurrent auroral and in situ magnetospheric observations of the onset of a dawn storm at Jupiter. Mapping the…
The 3D Structure of Saturn Magnetospheric Neutral Tori Produced by the Enceladus Plumes
Richardson, John D.; Smith, Howard Todd
This research provides updated and validated spatial distributions of Enceladus generated H2O, OH, and O neutral tori. These tori are produced by the primary neutral source, Enceladus, and consist of populations of coorbiting neutral particles that provide the bulk of heavy molecules to Saturn's (neutral particle dominant) magnetosphere…