Jupiter's X-Ray and UV Dark Polar Region.
Chandra X‐ray Observatory
Hubble Space Telescope
Jupiter
aurora
dark polar region
magnetosphere
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 Jun 2022
16 Jun 2022
Historique:
received:
16
12
2021
revised:
18
05
2022
accepted:
20
05
2022
entrez:
22
7
2022
pubmed:
23
7
2022
medline:
23
7
2022
Statut:
ppublish
Résumé
We present 14 simultaneous Chandra X-ray Observatory (CXO)-Hubble Space Telescope (HST) observations of Jupiter's Northern X-ray and ultraviolet (UV) aurorae from 2016 to 2019. Despite the variety of dynamic UV and X-ray auroral structures, one region is conspicuous by its persistent absence of emission: the dark polar region (DPR). Previous HST observations have shown that very little UV emission is produced by the DPR. We find that the DPR also produces very few X-ray photons. For all 14 observations, the low level of X-ray emission from the DPR is consistent (within 2-standard deviations) with scattered solar emission and/or photons spread by Chandra's Point Spread Function from known X-ray-bright regions. We therefore conclude that for these 14 observations the DPR produced no statistically significant detectable X-ray signature.
Identifiants
pubmed: 35865009
doi: 10.1029/2021GL097390
pii: GRL64305
pmc: PMC9287093
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e2021GL097390Informations de copyright
© 2022. The Authors.
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