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Faculté des Sciences
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Analysis of the dawn-dusk asymmetry in Jupiter's main auroral emission using Juno-UVS

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Groulard, Antoine ULiège
Promotor(s) : Bonfond, Bertrand ULiège
Date of defense : 5-Sep-2022/6-Sep-2022 • Permalink : http://hdl.handle.net/2268.2/15539
Details
Title : Analysis of the dawn-dusk asymmetry in Jupiter's main auroral emission using Juno-UVS
Translated title : [fr] Utilisation de Juno-UVS pour l'analyse de l'asymétrie aube-crépuscule dans l'émission aurorale principale de Jupiter
Author : Groulard, Antoine ULiège
Date of defense  : 5-Sep-2022/6-Sep-2022
Advisor(s) : Bonfond, Bertrand ULiège
Committee's member(s) : Grodent, Denis ULiège
Van Grootel, Valérie ULiège
Orban De Xivry, Gilles ULiège
Language : English
Keywords : [en] Juno
[en] Jupiter
[en] Aurora
[en] UV
Discipline(s) : Physical, chemical, mathematical & earth Sciences > Space science, astronomy & astrophysics
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en sciences spatiales, à finalité approfondie
Faculty: Master thesis of the Faculté des Sciences

Abstract

[fr] Theoretical works on the main auroral UV emission at Jupiter suggest that the dawn region must be more powerful than the dusk one. However, a study made with the Hubble Space Telescope (HST) has shown the opposite, with a dusk region about 3 times more powerful than the dawn one.

In this thesis, new data obtained with UVS, the UV spectra-imager onboard Juno, are used to create comprehensive brightness maps of the 39 first perijoves of the spacecraft in both hemispheres. These main emission is then isolated on these maps using 4 different methods. Finally, the dusk and dawn regions are found, and the emitted power in these regions are computed. A statistical analyses of the power thus obtained is performed to found if the results from the HST study could be retrieved.


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Author

  • Groulard, Antoine ULiège Université de Liège > Master sc. spatiales, à fin.

Promotor(s)

Committee's member(s)

  • Grodent, Denis ULiège Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
    ORBi View his publications on ORBi
  • Van Grootel, Valérie ULiège Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
    ORBi View his publications on ORBi
  • Orban De Xivry, Gilles ULiège Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab
    ORBi View his publications on ORBi
  • Total number of views 34
  • Total number of downloads 27










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