Survey and Analysis of Whistler- and Z-Mode Emission in the Juno Extended Mission

J. D. Menietti; T. F. Averkamp; W. S. Kurth; J. B. Faden; S. J. Bolton

doi:10.1029/2023JA032037

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Survey and Analysis of Whistler- and Z-Mode Emission in the Juno Extended Mission

Journal article

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Survey and Analysis of Whistler- and Z-Mode Emission in the Juno Extended Mission

J. D. Menietti, T. F. Averkamp, W. S. Kurth, J. B. Faden and S. J. Bolton

Journal of geophysical research. Space physics, Vol.128(12), e2023JA032037

12/04/2023

DOI: 10.1029/2023JA032037

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Abstract

Whistler-mode and Z-mode waves may have significant impact on electron scattering and acceleration at Jupiter as recent stochastic models indicate. New observations of these waves in the Juno extended mission expand the orbital coverage from previous surveys, extending especially to smaller radial distances near the magnetic equator, and to extended ranges of dusk-side magnetic local time. M-shells transiting the Io torus and the orbit of Europa are recognized as a significant source region for whistler-mode lower and upper band chorus emission with intensity peaks near 9 RJ. Ganymede is a significant source of intense whistler-mode chorus confined to the local moon environment. New Z-mode observations now extend from a few kHz to over 80 kHz. Inferred source regions for Z-mode are consistent with the outer edge of the Io torus and with auroral field lines that may also support broadband kilometric or decametric emission. Whistler-mode lower and upper band chorus intensities are surveyed in the extended Juno mission, increasing orbital coverageZ-mode intensity distributions are re-analyzed with improved plasma density evaluationsMixed Z-mode, O-mode, and W-mode emission challenges discrete mode identification

Physical Sciences

Astronomy & Astrophysics

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Details

Title: Subtitle: Survey and Analysis of Whistler- and Z-Mode Emission in the Juno Extended Mission
Creators: J. D. Menietti - University of Iowa
T. F. Averkamp - University of Iowa
W. S. Kurth - University of Iowa
J. B. Faden - University of Iowa
S. J. Bolton - Southwest Research Institute
Resource Type: Journal article
Publication Details: Journal of geophysical research. Space physics, Vol.128(12), e2023JA032037
DOI: 10.1029/2023JA032037
ISSN: 2169-9380
eISSN: 2169-9402
Publisher: Wiley
Number of pages: 11
Grant note: 699041X / NASA; National Aeronautics & Space Administration (NASA) NASA New Frontiers Program 80NSSC19K1262 / National Aeronautics and Space Administration; National Aeronautics & Space Administration (NASA) Roy J. Carver Charitable Trust
Language: English
Date published: 12/04/2023
Academic Unit: Physics and Astronomy
Record Identifier: 9984534273602771

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