Reference : UV Io footprint leading spot: A key feature for understanding the UV Io footprint mul...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/3862
UV Io footprint leading spot: A key feature for understanding the UV Io footprint multiplicity?
English
Bonfond, Bertrand mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Grodent, Denis mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Gérard, Jean-Claude mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Radioti, Aikaterini mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Saur, Joachim [Universität zu Köln > Institut für Geophysik und Meteorologie > > >]
Jacobsen, Sven [Universität zu Köln > Institut für Geophysik und Meteorologie > > >]
2008
Geophysical Research Letters
American Geophysical Union
35
5
Yes (verified by ORBi)
International
0094-8276
Washington
DC
[en] Io ; Jupiter ; Io footprint ; Electron beams ; Hubble Space Telescope ; Leading spot
[en] The electromagnetic interaction between Io and the Jovian magnetosphere generates a UV auroral footprint in both Jovian hemispheres. Multiple spots were observed in the northern Jovian hemisphere when Io was in the northern part of the plasma torus and vice-versa for the South. Based on recent Hubble Space Telescope (HST) measurements, we report here the discovery of a UV leading spot, i.e., a faint emission located ahead of the main spot. The leading spot emerges at System III longitudes between 0 degrees and 100 degrees in the northern hemisphere and between 130 degrees and 300 degrees in the southern hemisphere, i. e., in one hemisphere when multiple spots are observed in the other hemisphere. We propose as one potential mechanism that electron beams observed near Io are related to the generation of the leading spot and the secondary spot in the opposite hemisphere.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/3862
10.1029/2007GL032418

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