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Geophysical Research Letters
Article . 2021 . Peer-reviewed
License: CC BY
Data sources: Crossref
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Geophysical Research Letters
Article
License: CC BY
Data sources: UnpayWall
Lancaster EPrints
Article . 2021 . Peer-reviewed
Data sources: Lancaster EPrints
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The Statistical Morphology of Saturn’s Equatorial Energetic Neutral Atom Emission

Authors: J. Kinrade; A. Bader; S. V. Badman; C. Paranicas; D. G. Mitchell; D. Constable; C. S. Arridge; +2 Authors

The Statistical Morphology of Saturn’s Equatorial Energetic Neutral Atom Emission

Abstract

AbstractSaturn’s magnetosphere is an efficient emitter of energetic neutral atoms (ENAs), created through charge exchange of energetic ions with the extended neutral cloud originating from the icy moon Enceladus. We present an analysis using the complete image set captured by Cassini’s Ion Neutral Camera to characterize Saturn’s average ENA morphology. Concentric tori are formed around the planet by oxygen and hydrogen ENAs, with intensity peaks between 7 and 10 RS radial distance, with a ∼1–2 RS dayside offset. Nightside intensity is brighter than the dayside, likely the result of enhancements following large‐scale plasma injections from the magnetotail, and influence of the noon‐midnight electric field. Global intensity is clearly modulated with the near‐planetary rotation period. This Cassini‐era profile of Saturn’s ENA emission advances our understanding of how volcanic moons can influence plasma dynamics in giant magnetospheres and is timely ahead of the planned JUICE mission, which carries the first dedicated ENA detector to Jupiter.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Average
Green
gold