Preliminary JIRAM results from Juno polar observations: 2. Analysis of the Jupiter southern H3 + emissions and comparison with the north aurora

peer reviewed The Jupiter InfraRed Auroral Mapper (JIRAM) aboard Juno observed the Jovian South Pole aurora during the first orbit of the mission. H3 + (trihydrogen cation) and CH4 (methane) emissions have been identified and measured. The observations have been carried out in nadir and slant viewin...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Adriani, Alberto, Mura, Alessandro, Moriconi, M. L., Dinelli, B. M., Fabiano, F., Altieri, Francesca, Sindoni, Bolton, Scott J., Connerney, John E.P., Atreya, Sushil K., Bagenal, Fran, Gérard, Jean-Claude, Filacchione, Gianrico, Tosi, Federico, Migliorini, Alessandra, Grassi, Davide, Piccioni, Giuseppe, Noschese, Raffaella, Cicchetti, Andrea, Gladstone, G. Randall, Hansen, Candice J., Kurth, W. S, Levin, Steven M., Mauk, Barry H., McComas, David John, Olivieri, A., Turrini, Diego, Stefani, Stefania, Amoroso, M.
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union 2017
Subjects:
JIRAM spectrometer
Juno mission
Jupiter aurora
Physical
chemical
mathematical & earth Sciences
Space science
astronomy & astrophysics
Physique
chimie
mathématiques & sciences de la terre
Aérospatiale
astronomie & astrophysique
South pole
Online Access:https://orbi.uliege.be/handle/2268/213260
https://orbi.uliege.be/bitstream/2268/213260/1/Adriani_1492070025.pdf
https://doi.org/10.1002/2017GL072905
Description
Summary:peer reviewed The Jupiter InfraRed Auroral Mapper (JIRAM) aboard Juno observed the Jovian South Pole aurora during the first orbit of the mission. H3 + (trihydrogen cation) and CH4 (methane) emissions have been identified and measured. The observations have been carried out in nadir and slant viewing both by a L-filtered imager and a 2–5 μm spectrometer. Results from the spectral analysis of the all observations taken over the South Pole by the instrument are reported. The coverage of the southern aurora during these measurements has been partial, but sufficient to determine different regions of temperature and abundance of the H3 + ion from its emission lines in the 3–4 μm wavelength range. Finally, the results from the southern aurora are also compared with those from the northern ones from the data taken during the same perijove pass and reported by Dinelli et al. (2017). ©2017. American Geophysical Union. All Rights Reserved.

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