SM014-07
An overview of Jovian auroral acceleration processes: emphasis on energetic charged particle observations from NASA’s Juno mission

Wednesday, 9 December 2020: 04:24
Virtual
George B Clark1, Barry Mauk2, Frederic Allegrini3, Robert W Ebert4, Peter Kollmann5, Chris Paranicas1, Jamey R Szalay6, Ali H Sulaiman7, Daniel J Gershman8, Fragn Bagenal9, Scott J Bolton4, John E P Connerney8, Sadie Elliott10, Randy Gladstone4, Dennis K Haggerty11, William S Kurth7, Steven Levin12, Wen Li13, Abigail M Rymer14 and Joseph H Westlake15, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (3)Southwest Research Institute San Antonio, San Antonio, TX, United States, (4)Southwest Research Institute, San Antonio, TX, United States, (5)The Applied Physics Laboratory, John Hopkins University, Laurel, MD, United States, (6)Princeton University, Department of Astrophysical Sciences, Princeton, NJ, United States, (7)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (8)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (9)University of Colorado Boulder - LASP, Boulder, United States, (10)Augsburg College, Minneapolis, MN, United States, (11)Johns Hopkins Univ, Laurel, MD, United States, (12)Jet Propulsion Laboratory, Pasadena, CA, United States, (13)Boston University, Boston, MA, United States, (14)Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States, (15)JHUAPL, Laurel, MD, United States
Recorded Presentation
Abstract:
Jupiter’s auroral emissions are the manifestation of complex and diverse magnetospheric and ionospheric processes that occur over a vast volume of space with a broad range of spatial and temporal scales. These emissions are the result of charged particles bombarding the upper atmosphere of Jupiter, but many aspects on how they are accelerated and scattered into the atmosphere and away from the planet are still a big mystery today. The Juno mission – a Jupiter polar orbiting spacecraft – continues to fly through these regions and provides invaluable observations that are changing our fundamental understanding of Jovian auroral science. Juno has completed much of its prime mission and has made many discoveries that have led to a deeper understanding and new hypotheses. In this presentation, we provide an overview of the recent discoveries enabled by Juno’s observations with an emphasis on energetic charged particle measurements from the Jupiter Energetic particle Detector Instrument (JEDI). We will also discuss comparative aspects of particle acceleration among the auroral regions at Jupiter, Earth and Saturn and how these comparisons may be relevant to future exploration of Uranus and Neptune.
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