Evidence for low density holes in Jupiter's ionosphere

Masafumi Imai; Ivana Kolmašová; William S Kurth; Ondřej Santolík; George B Hospodarsky; Donald A Gurnett; Shannon T Brown; Scott J Bolton; John E P Connerney; Steven M Levin

doi:10.1038/s41467-019-10708-w

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Evidence for low density holes in Jupiter's ionosphere

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Evidence for low density holes in Jupiter's ionosphere

Masafumi Imai, Ivana Kolmašová, William S Kurth, Ondřej Santolík, George B Hospodarsky, Donald A Gurnett, Shannon T Brown, Scott J Bolton, John E P Connerney and Steven M Levin

Nature communications, Vol.10(1), pp.2751-6

06/21/2019

DOI: 10.1038/s41467-019-10708-w

PMCID: PMC6588597

PMID: 31227707

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https://doi.org/10.1038/s41467-019-10708-wView

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Abstract

Intense electromagnetic impulses induced by Jupiter's lightning have been recognised to produce both low-frequency dispersed whistler emissions and non-dispersed radio pulses. Here we report the discovery of electromagnetic pulses associated with Jovian lightning. Detected by the Juno Waves instrument during its polar perijove passes, the dispersed millisecond pulses called Jupiter dispersed pulses (JDPs) provide evidence of low density holes in Jupiter's ionosphere. 445 of these JDP emissions have been observed in snapshots of electric field waveforms. Assuming that the maximum delay occurs in the vicinity of the free space ordinary mode cutoff frequency, we estimate the characteristic plasma densities (5.1 to 250 cm ) and lengths (0.6 km to 1.3 × 10 km) of plasma irregularities along the line of propagation from lightning to Juno. These irregularities show a direct link to low plasma density holes with ≤250 cm in the nightside ionosphere.

Details

Title: Subtitle: Evidence for low density holes in Jupiter's ionosphere
Creators: Masafumi Imai - University of Iowa
Ivana Kolmašová - Czech Academy of Sciences, Institute of Atmospheric Physics
William S Kurth - University of Iowa
Ondřej Santolík - Charles University
George B Hospodarsky - University of Iowa
Donald A Gurnett - University of Iowa
Shannon T Brown - Jet Propulsion Laboratory
Scott J Bolton - Southwest Research Institute
John E P Connerney - Goddard Space Flight Center
Steven M Levin - Jet Propulsion Laboratory
Resource Type: Journal article
Publication Details: Nature communications, Vol.10(1), pp.2751-6
DOI: 10.1038/s41467-019-10708-w
PMID: 31227707
PMCID: PMC6588597
NLM abbreviation: Nat Commun
ISSN: 2041-1723
eISSN: 2041-1723
Grant note: 699041X / National Aeronautics and Space Administration (NASA)
Language: English
Date published: 06/21/2019
Academic Unit: Physics and Astronomy
Record Identifier: 9984455364802771

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