Io-Jupiter decametric arcs observed by Juno/Waves compared to ExPRES simulations

Corentin K. Louis; L. Lamy; P. Zarka; B. Cecconi; M. Imai; William S. Kurth; G. Hospodarsky; S. L. G. Hess; X. Bonnin; S. Bolton; J. E. P. Connerney; S. M. Levin

doi:10.1002/2017GL073036

Back

Io-Jupiter decametric arcs observed by Juno/Waves compared to ExPRES simulations

Journal article

Open access

Peer reviewed

Io-Jupiter decametric arcs observed by Juno/Waves compared to ExPRES simulations

Corentin K. Louis, L. Lamy, P. Zarka, B. Cecconi, M. Imai, William S. Kurth, G. Hospodarsky, S. L. G. Hess, X. Bonnin, S. Bolton, …

Geophysical research letters, Vol.44(18), pp.9225-9232

09/28/2017

DOI: 10.1002/2017GL073036

Files and links (1)

url

https://doi.org/10.1002/2017GL073036View

Published (Version of record) Open Access

Abstract

We compare observations from the Juno/Waves radio experiment with simulations of radio <> in the time-frequency plane resulting from the Io-Jupiter interaction, performed with the ExPRES code. We identify the hemisphere of origin of the observed arcs directly from simulations and confirm this identification through comparison with Juno, Nancay, and Wind observations. The occurrence and shape of observed arcs are well modeled, at low latitudes with their usual shapes as seen from Earth, as well as at high latitudes with longer, bowl-shaped, arcs observed for the first time. Predicted emission is actually observed only when the radio beaming angle theta = (k,B) > or = 70 degrees + or - 5 degrees , providing new constraints on the generation of the decameter emission by the Cyclotron Maser Instability. Further improvements of ExPRES are outlined, which will then be applied to Juno and Earth-based observations of radio emissions induced by other Galilean satellites or associated to the main auroral oval. Abstract Copyright (2017), . American Geophysical Union. All Rights Reserved.

electrical field

Exoplanetary and Planetary Radio Emissions Simulator

experimental studies

Extraterrestrial geology

Galilean satellites

giant planets

Io Satellite

Juno/Waves

Jupiter

Nancay Decameter Array

outer planets

planets

programs

radio-wave methods

satellites

simulation

spacecraft

Details

Title: Subtitle: Io-Jupiter decametric arcs observed by Juno/Waves compared to ExPRES simulations
Creators: Corentin K. Louis - Délégation Paris 7
L. Lamy - Délégation Paris 7
P. Zarka - Délégation Paris 7
B. Cecconi - Délégation Paris 7
M. Imai - University of Iowa
William S. Kurth - University of Iowa
G. Hospodarsky - University of Iowa
S. L. G. Hess
X. Bonnin - Délégation Paris 7
S. Bolton - Southwest Research Institute
J. E. P. Connerney - Goddard Space Flight Center
S. M. Levin - Jet Propulsion Laboratory
Resource Type: Journal article
Publication Details: Geophysical research letters, Vol.44(18), pp.9225-9232
Publisher: American Geophysical Union
DOI: 10.1002/2017GL073036
ISSN: 0094-8276
eISSN: 1944-8007
Grant note: DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: 699041X; DOI: 10.13039/501100001665, name: Agence Nationale de la Recherche, award: ANR‐11‐IDEX‐0004‐02
Language: English
Date published: 09/28/2017
Academic Unit: Physics and Astronomy
Record Identifier: 9984455280002771

Metrics

1 Record Views

19 Times Cited - Web of Science

See more details