Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30356
Title: | Juno observations of spot structures and a split tail in Io-induced aurorae on Jupiter | Authors: | MURA, Alessandro ADRIANI, Alberto Connerney, J. E. P. Bolton, S. ALTIERI, FRANCESCA Bagenal, F. Bonfond, B. Dinelli, B. M. Gérard, J. -C. Greathouse, T. Grodent, D. Levin, S. Mauk, B. Moriconi, M. L. Saur, J. Waite, J. H. Amoroso, M. CICCHETTI, ANDREA Fabiano, F. FILACCHIONE, GIANRICO GRASSI, Davide MIGLIORINI, Alessandra NOSCHESE, RAFFAELLA Olivieri, A. PICCIONI, GIUSEPPE Plainaki, C. Sindoni, G. SORDINI, Roberto TOSI, Federico TURRINI, Diego |
Issue Date: | 2018 | Journal: | SCIENCE | Number: | 361 | Issue: | 6404 | First Page: | 774 | Abstract: | Jupiter’s aurorae are produced in its upper atmosphere when incoming high-energy electrons precipitate along the planet’s magnetic field lines. A northern and a southern main auroral oval are visible, surrounded by small emission features associated with the Galilean moons. We present infrared observations, obtained with the Juno spacecraft, showing that in the case of Io, this emission exhibits a swirling pattern that is similar in appearance to a von Kármán vortex street. Well downstream of the main auroral spots, the extended tail is split in two. Both of Ganymede’s footprints also appear as a pair of emission features, which may provide a remote measure of Ganymede’s magnetosphere. These features suggest that the magnetohydrodynamic interaction between Jupiter and its moon is more complex than previously anticipated. | URI: | http://hdl.handle.net/20.500.12386/30356 | URL: | https://science.sciencemag.org/content/361/6404/774 | ISSN: | 0036-8075 | DOI: | 10.1126/science.aat1450 | Bibcode ADS: | 2018Sci...361..774M | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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jiram.mura.v2.pdf | preprint | 9.24 MB | Adobe PDF | View/Open |
Science774.full.pdf | [Administrators only] | 651.08 kB | Adobe PDF |
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