Comparing Electron Energetics and UV Brightness in Jupiter's Northern Polar Region During Juno Perijove 5.

Juno Jupiter's aurora electron energy flux polar UV emissions polar auroral region precipitating electrons

Journal

Geophysical research letters
ISSN: 0094-8276
Titre abrégé: Geophys Res Lett
Pays: United States
ID NLM: 9882887

Informations de publication

Date de publication:
16 Jan 2019
Historique:
received: 29 10 2018
revised: 14 12 2018
accepted: 20 12 2018
entrez: 5 3 2019
pubmed: 5 3 2019
medline: 5 3 2019
Statut: ppublish

Résumé

We compare electron and UV observations mapping to the same location in Jupiter's northern polar region, poleward of the main aurora, during Juno perijove 5. Simultaneous peaks in UV brightness and electron energy flux are identified when observations map to the same location at the same time. The downward energy flux during these simultaneous observations was not sufficient to generate the observed UV brightness; the upward energy flux was. We propose that the primary acceleration region is below Juno's altitude, from which the more intense upward electrons originate. For the complete interval, the UV brightness peaked at ~240 kilorayleigh (kR); the downward and upward energy fluxes peaked at 60 and 700 mW/m

Identifiants

pubmed: 30828110
doi: 10.1029/2018GL081129
pii: GRL58442
pmc: PMC6378591
doi:

Types de publication

Journal Article

Langues

eng

Pagination

19-27

Références

Geophys Res Lett. 2019 Jan 16;46(1):19-27
pubmed: 30828110
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Auteurs

R W Ebert (RW)

Southwest Research Institute San Antonio TX USA.
Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX USA.

T K Greathouse (TK)

Southwest Research Institute San Antonio TX USA.

G Clark (G)

Johns Hopkins University Applied Physics Lab Laurel MD USA.

F Allegrini (F)

Southwest Research Institute San Antonio TX USA.
Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX USA.

F Bagenal (F)

Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA.

S J Bolton (SJ)

Southwest Research Institute San Antonio TX USA.

J E P Connerney (JEP)

NASA Goddard Space Flight Center Greenbelt MD USA.

G R Gladstone (GR)

Southwest Research Institute San Antonio TX USA.
Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX USA.

M Imai (M)

Department of Physics and Astronomy University of Iowa Iowa City IA USA.

V Hue (V)

Southwest Research Institute San Antonio TX USA.

W S Kurth (WS)

Department of Physics and Astronomy University of Iowa Iowa City IA USA.

S Levin (S)

Jet Propulsion Laboratory Pasadena CA USA.

P Louarn (P)

Institut de Recherche en Astrophysique et Planétologie Toulouse France.

B H Mauk (BH)

Johns Hopkins University Applied Physics Lab Laurel MD USA.

D J McComas (DJ)

Southwest Research Institute San Antonio TX USA.
Department of Astrophysical Sciences Princeton University Princeton NJ USA.

C Paranicas (C)

Johns Hopkins University Applied Physics Lab Laurel MD USA.

J R Szalay (JR)

Department of Astrophysical Sciences Princeton University Princeton NJ USA.

M F Thomsen (MF)

Planetary Science Institute Tucson AZ USA.

P W Valek (PW)

Southwest Research Institute San Antonio TX USA.

R J Wilson (RJ)

Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA.

Classifications MeSH