Reference : Equatorward diffuse auroral emissions at Jupiter: Simultaneous HST and Galileo observati...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/20793
Equatorward diffuse auroral emissions at Jupiter: Simultaneous HST and Galileo observations
English
Radioti, Aikaterini mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Tomás, Ana Teresa [GeoForschungZentrum, Potzdam, Germany > > > >]
Grodent, Denis mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Gérard, Jean-Claude mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Gustin, Jacques mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Bonford, Bertrand [Université de Liège - ULG > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) > >]
Krupp, Norbert [Max-Planck-Institut fuer Sonnensystemforschung, Katlenburg-Lindau, Germany > > > >]
Woch, Joachim [Max-Planck-Institut fuer Sonnensystemforschung, Katlenburg-Lindau, Germany > > > >]
Menietti, John Douglas [University of Iowa, Iowa City, USA > Departement pf Physics and Astronomy > > > >]
2-Apr-2009
Geophysical Research Letters
American Geophysical Union
36
07101
Yes (verified by ORBi)
International
0094-8276
Washington
DC
[en] Magnetospheric Physics: Auroral phenomena (2407) ; Magnetospheric Physics: Magnetosphere/ionosphere interactions (2431) ; Magnetospheric Physics: Energetic particles: precipitating ; Magnetospheric Physics: Planetary magnetospheres (5443 ; 5737 ; 6033)
[en] We study the auroral emissions equatorward of the main oval based on Hubble Space Telescope (HST) observations of both Jovian hemispheres on September 20, 1997. On the same day, Galileo observed changes in the electron pitch angle distribution between the inner and middle magnetosphere (PAD boundary), indicative of electron diffusion. This region, magnetically maps to the equatorward diffuse emissions on both hemispheres. Whistler mode waves, observed simultaneously, can scatter electrons into the loss cone and lead to electron precipitation in the ionosphere. Based on simultaneous HST FUV and Galileo wave and electron data we test the conditions for electron scattering by whistler mode waves and derive the energy flux precipitated in the ionosphere. The comparison of the derived precipitation energy flux with the observed auroral brightness indicates that the energy contained in the PAD boundary can account for the auroral emissions.
http://hdl.handle.net/2268/20793
10.1029/2009GL037857
http://adsabs.harvard.edu/abs/2009GeoRL..3607101R

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