The Infrared Auroral Footprint Tracks of Io, Europa and Ganymede at Jupiter Observed by Juno‐JIRAM

Moirano, Alessandro; Mura, A.; Hue, V.; Bonfond, Bertrand; Head, Linus Alexander; Connerney, J. E. P.; Adriani, A.; Altieri, F.; Castagnoli, C.; Cicchetti, A.; Dinelli, B. M.; Grassi, D.; Migliorini, A.; Moriconi, M. L.; Noschese, R.; Piccioni, G.; Plainaki, C.; Scarica, P.; Sindoni, G.; Sordini, R.; Tosi, F.; Turrini, D.; Zambon, F.

doi:10.1029/2023je008130

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The Infrared Auroral Footprint Tracks of Io, Europa and Ganymede at Jupiter Observed by Juno‐JIRAM

Moirano, Alessandro; Mura, A.; Hue, V. et al.

2024 • In Journal of Geophysical Research. Planets, 129 (3)

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10.1029/2023je008130

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Space and Planetary Science; Earth and Planetary Sciences (miscellaneous); Geochemistry and Petrology; Geophysics

Abstract :

[en] AbstractThe electromagnetic coupling between the Galilean satellites at Jupiter and the planetary ionosphere generates an auroral footprint, which is detected with high spatial resolution in the infrared L band by the Jovian InfraRed Auroral Mapper (JIRAM) onboard the Juno spacecraft. We report the JIRAM data acquired since 27 August 2016 until 23 May 2022, which are used to compute the average position of the footprint tracks of Io, Europa and Ganymede. The result of the present analysis help to test the reliability of magnetic field models, to calibrate ground‐based observations and to highlight the variability in the footprint positions, which can be used to probe the plasma environment at the orbit of the satellites. The determination of the plasma properties around the moons is particularly relevant to complement the Juno flybys of the moons during its extended mission, and to support the future Juice and Europa Clipper missions. Lastly, we report no clear evidence of the auroral footprint of Callisto, which is likely due to a combination of its low expected brightness and its position very close to the main Jovian aurora.

Research Center/Unit :

STAR - Space sciences, Technologies and Astrophysics Research - ULiège

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Moirano, Alessandro ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy ; Sapienza University of Rome Rome Italy

Mura, A. ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy

Hue, V. ; Aix‐Marseille Université CNRS CNES Institut Origines LAM Marseille France ; Southwest Research Institute San Antonio TX USA

Bonfond, Bertrand ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)

Head, Linus Alexander ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)

Connerney, J. E. P. ; Space Research Corporation Annapolis MD USA

Adriani, A. ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy

Altieri, F. ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy

Castagnoli, C. ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy ; Institute of Atmospheric Sciences and Climate National Research Council (CNR ‐ ISAC) Bologna Italy ; University of Rome Tor Vergata Rome Italy

Cicchetti, A. ; Institute for Space Astrophysics and Planetology National Institute for Astrophysics (INAF—IAPS) Rome Italy

More authors (13 more)

Language :

English

Title :

The Infrared Auroral Footprint Tracks of Io, Europa and Ganymede at Jupiter Observed by Juno‐JIRAM

Publication date :

26 February 2024

Journal title :

Journal of Geophysical Research. Planets

ISSN :

2169-9097

eISSN :

2169-9100

Volume :

129

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2023JE008130

Funders :

ASI - Agenzia Spaziale Italiana
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
F.R.S.-FNRS - Fonds de la Recherche Scientifique

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