Reference : Variability of Jupiter’s Main Auroral Emission in Response to Magnetospheric Hot Plas...
Scientific congresses and symposiums : Poster
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
Variability of Jupiter’s Main Auroral Emission in Response to Magnetospheric Hot Plasma Injections
Badman, Sarah []
Bonfond, Bertrand mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Fujimoto, Masaki []
Kagitani, Masato []
Kasaba, Yasumasa []
Kasahara, Satoshi []
Kimura, Tomoki []
Melin, Henrik []
Murakami, Go []
Nichols, Jonathan []
Sakanoi, Takeshi []
Steffl, Andrew []
Tao, Chihiro []
Tsuchiya, Fuminori []
Uno, Takeru []
Yamazaki, Atsushi []
Yoneda, Mizuki []
Yoshikawa, Ichiro []
Yoshioka, Kazuo []
American Geophysical Union Fall Meeting 2014
du 15 décembre 2014 au 19 décembre 2014
American Geophysical Union
San Francisco
[en] Jupiter ; Hubble Space Telescope ; Hisaki ; Lisri
[en] We present observations of Jupiter’s FUV aurora acquired by the Hubble Space Telescope during a two-week interval in January 2014. The variability of the main auroral emission was studied using latitudinal profiles of intensity. The main oval intensity was found to be reduced when bright patches of diffuse emission were present at lower latitudes. These low latitude emissions are interpreted as the signatures of hot plasma injections from the outer magnetosphere, a process which has previously been related to interchange between the flux tubes from the outer magnetosphere and outward-moving flux tubes loaded with iogenic plasma. The main emission was also observed to broaden and shift in latitude, and occasionally display a double peak structure. These observations are interpreted with reference to the expected changes in auroral field-aligned currents associated with the replacement of the radially-stretched, mass-loaded flux tubes in the middle magnetosphere by more dipolar flux tubes containing rarefied hot plasma.
Liège Space Research Institute - LiSRI
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals

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