Response of Jupiter's auroras to conditions in the interplanetary medium as measured by the Hubble Space Telescope and Juno

Nichols, J. D.; Badman, S. V.; Bagenal, F.; Bolton, S. J.; Bonfond, Bertrand; Bunce, E. J.; Clarke, J. T.; Connerney, J. E. P.; Cowley, S. W. H.; Ebert, R. W.; Fujimoto, M.; Gérard, Jean-Claude; Gladstone, G. R.; Grodent, Denis; Kimura, T.; Kurth, W. S.; Mauk, B. H.; Murakami, G.; McComas, D. J.; Orton, G. S.; Radioti, Aikaterini; Stallard, T. S.; Tao, C.; Valek, P. W.; Wilson, R. J.; Yamazaki, A.; Yoshikawa, I.

doi:10.1002/2017GL073029

Article (Scientific journals)

Response of Jupiter's auroras to conditions in the interplanetary medium as measured by the Hubble Space Telescope and Juno

Nichols, J. D.; Badman, S. V.; Bagenal, F. et al.

2017 • In Geophysical Research Letters

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DOI
10.1002/2017GL073029

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Keywords :

Auroral phenomena; Solar wind/magnetosphere interactions; Aurorae; Magnetospheres; Jupiter; Juno; Hubble Space Telescope; Aurora; Magnetosphere; Solar Wind

Abstract :

[en] We present the first comparison of Jupiter's auroral morphology with an extended, continuous and complete set of near-Jupiter interplanetary data, revealing the response of Jupiter's auroras to the interplanetary conditions. We show that for ∼1-3 days following compression region onset the planet's main emission brightened. A duskside poleward region also brightened during compressions, as well as during shallow rarefaction conditions at the start of the program. The power emitted from the noon active region did not exhibit dependence on any interplanetary parameter, though the morphology typically differed between rarefactions and compressions. The auroras equatorward of the main emission brightened over ∼10 days following an interval of increased volcanic activity on Io. These results show that the dependence of Jupiter's magnetosphere and auroras on the interplanetary conditions are more diverse than previously thought.

Research Center/Unit :

STAR - Space sciences, Technologies and Astrophysics Research - ULiège

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Nichols, J. D.

Badman, S. V.

Bagenal, F.

Bolton, S. J.

Bonfond, Bertrand ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)

Bunce, E. J.

Clarke, J. T.

Connerney, J. E. P.

Cowley, S. W. H.

Ebert, R. W.

More authors (17 more)

Language :

English

Title :

Response of Jupiter's auroras to conditions in the interplanetary medium as measured by the Hubble Space Telescope and Juno

Publication date :

2017

Journal title :

Geophysical Research Letters

ISSN :

0094-8276

eISSN :

1944-8007

Publisher :

American Geophysical Union, Washington, United States - District of Columbia

Pages :

n/a-n/a

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://dx.doi.org/10.1002/2017GL073029

Funders :

BELSPO - Service Public Fédéral de Programmation Politique scientifique

Commentary :

2017GL073029

Available on ORBi :

since 26 May 2017

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