Article (Scientific journals)
Transient aurora on Jupiter from injections of magnetospheric electrons
Mauk, B. H.; Clarke, J. T.; Grodent, Denis et al.
2002In Nature, 415 (6875), p. 1003-1005
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Abstract :
[en] Energetic electrons and ions that are trapped in Earth's magnetosphere can suddenly be accelerated towards the planet(1-5). Some dynamic features of Earth's aurora (the northern and southern lights) are created by the fraction of these injected particles that travels along magnetic field lines and hits the upper atmosphere(4). Jupiter's aurora appears similar to Earth's in some respects; both appear as large ovals circling the poles and both show transient events(6-11). But the magnetospheres of Jupiter and Earth are so different-particularly in the way they are powered-that it is not known whether the magnetospheric drivers(12) of Earth's aurora also cause them on Jupiter. Here we show a direct relationship between Earth-like injections of electrons in Jupiter's magnetosphere and a transient auroral feature in Jupiter's polar region. This relationship is remarkably similar to what happens at Earth, and therefore suggests that despite the large differences between planetary magnetospheres, some processes that generate aurorae are the same throughout the Solar System.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Mauk, B. H.
Clarke, J. T.
Grodent, Denis  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Waite, J. H.
Paranicas, C. P.
Williams, D. J.
Language :
English
Title :
Transient aurora on Jupiter from injections of magnetospheric electrons
Publication date :
2002
Journal title :
Nature
ISSN :
0028-0836
eISSN :
1476-4687
Publisher :
Nature Publishing Group, Basingstoke, United Kingdom
Volume :
415
Issue :
6875
Pages :
1003-1005
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 January 2009

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