Reference : A possible auroral signature of a magnetotail reconnection process on Jupiter
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
A possible auroral signature of a magnetotail reconnection process on Jupiter
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.]
Clarke, J. T. [> > > >]
Gladstone, G. R. [> > > >]
Waite, J. H. [> > > >]
Journal of Geophysical Research. Space Physics
Amer Geophysical Union
Yes (verified by ORBi)
[en] aurora ; Jupiter ; reconnection ; Hubble ; STIS ; magnetosphere
[en] [1] Several theoretical models and in situ observations consistently suggest that the process of nightside reconnection associated with Earth's magnetospheric substorms is also taking place in the midnight tail region of Jupiter. We report the observation of a new auroral feature which takes the form of isolated spots appearing near the northern dusk-midnight limb, poleward of the main auroral oval. This feature was clearly detected in three HST-STIS data sets obtained on 14, 16, and 18 December 2000. Its position poleward of the main auroral oval, and lagging corotation, shows that it is magnetically connected to a distant region of the nightside magnetosphere. It is therefore suggested that these transient spots are the auroral signatures of reconnection processes occurring in the nightside tail of the distant Jovian magnetosphere. The cause of this reconnection is somewhat analogous to the case of a solar coronal mass ejection, so one may refer to it as a "Jovian mass ejection.''
Researchers ; Professionals ; Students

File(s) associated to this reference

Fulltext file(s):

Open access
grodent_etal_2004.pdfNo commentaryPublisher postprint429.57 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.