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Astrophysics Colloquium

The Radiation Belts of Jupiter Inward of Europa's Orbit: Recent Discoveries and Remaining Mysteries, Importance for Space Plasma Physics, Planetary Science and Radiation Risk Assessment
Presented by Quentin Nenon
University of California, Berkeley

Thursday, October 22, 2020
Virtual Event starts at 11:00 A.M.

Abstract
The radiation belts of Jupiter offer a unique laboratory to understand the dynamics, acceleration and loss of charged particles throughout the Universe. In addition, they alter moon surfaces and represent a major threat to artificial satellites. In this seminar, we will give an overview of recent advances on our understanding of the radiation belts located inward of Europa's orbit. The presented results rely on the physics-based model "Salammbo", developed by ONERA in France, used in conjunction with the measurements gathered in situ by Pioneer 10-11, Voyager 1, Galileo (atmospheric probe and orbiter), and Juno. We will in particular highlight that electromagnetic waves are a major loss process for the electron and proton radiation belts of Jupiter. We will finally discuss the overarching fundamental questions which remain open but could be answered by a dedicated space mission (White Paper submitted to the Astrobiology and Planetary Science decadal survey).

JPL Contact: Jamie Jasinski


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