Article (Scientific journals)
Ultraviolet imaging of the Jovian aurora with the Hubble Space Telescope
Dols, V.; Gérard, Jean-Claude; Paresce, F. et al.
1992In Geophysical Research Letters, 19, p. 1803-1806
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Keywords :
AURORA; HUBBLE SPACE TELESCOPE; JUPITER ATMOSPHERE; LYMAN ALPHA RADIATION; ULTRAVIOLET EMISSION; FAINT OBJECT CAMERA; PARTICLE PRECIPITATION
Abstract :
[en] We present here for the first time a Lyman-alpha image of the north polar region of Jupiter obtained with the Faint Object Camera on board the Hubble Space Telescope a few hours after the encounter of the ULYSSES spacecraft with Jupiter. The presence of high latitude regions of enhanced emission is clearly observed. A comparison with the location of the 'UVS oval', the Io (L = 6) and high-latitude field-line footprints shows that the best agreement is obtained with the L not less than 15 footprint and the UVS oval which are close to each other for the particular longitudinal sector observed. These two L-shells correspond to two possible sources of precipitation: particles originating respectively from the region of the plasma torus of Io in a distorted magnetic field or particles from the distant magnetosphere by analogy with the terrestrial aurora.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Dols, V.;  Liege Univ., Belgium
Gérard, Jean-Claude  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Paresce, F.;  Space Telescope Science Inst., Baltimore, MD
Prange, R.;  Inst. d'Astrophysique Spatiale, Orsay ; CNRS, Inst. d'Astrophysique, Paris, France
Vidal-Madjar, A.;  CNRS, Inst. d'Astrophysique, Paris, France
Language :
English
Title :
Ultraviolet imaging of the Jovian aurora with the Hubble Space Telescope
Publication date :
01 September 1992
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
American Geophysical Union, Washington, United States
Volume :
19
Pages :
1803-1806
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 03 November 2009

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