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The statistical morphology of Saturn's equatorial energetic neutral atom emission

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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The statistical morphology of Saturn's equatorial energetic neutral atom emission. / Kinrade, Joe; Bader, Alexander; Badman, Sarah et al.
In: Geophysical Research Letters, Vol. 48, No. 11, e2020GL091595, 16.06.2021.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Kinrade, J, Bader, A, Badman, S, Paranicas, C, Mitchell, DG, Constable, DA, Arridge, C, Cowley, SWH & Provan, G 2021, 'The statistical morphology of Saturn's equatorial energetic neutral atom emission', Geophysical Research Letters, vol. 48, no. 11, e2020GL091595. https://doi.org/10.1029/2020GL091595

APA

Kinrade, J., Bader, A., Badman, S., Paranicas, C., Mitchell, D. G., Constable, DA., Arridge, C., Cowley, S. W. H., & Provan, G. (2021). The statistical morphology of Saturn's equatorial energetic neutral atom emission. Geophysical Research Letters, 48(11), Article e2020GL091595. https://doi.org/10.1029/2020GL091595

Vancouver

Kinrade J, Bader A, Badman S, Paranicas C, Mitchell DG, Constable DA et al. The statistical morphology of Saturn's equatorial energetic neutral atom emission. Geophysical Research Letters. 2021 Jun 16;48(11):e2020GL091595. Epub 2021 Jun 3. doi: 10.1029/2020GL091595

Author

Kinrade, Joe ; Bader, Alexander ; Badman, Sarah et al. / The statistical morphology of Saturn's equatorial energetic neutral atom emission. In: Geophysical Research Letters. 2021 ; Vol. 48, No. 11.

Bibtex

@article{3a1e6c9b82c64d37ac5cdb38ccbbaa9d,
title = "The statistical morphology of Saturn's equatorial energetic neutral atom emission",
abstract = "Saturn'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{\textquoteright}s Ion Neutral Camera (INCA) to characterise Saturn{\textquoteright}s average ENA morphology. Concentric tori are formed around the planet by oxygen and hydrogen ENAs, with intensity peaks between 7-10 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.",
keywords = "Cassini INCA, energetic neutral atoms, Saturn{\textquoteright}s magnetosphere",
author = "Joe Kinrade and Alexander Bader and Sarah Badman and C. Paranicas and Mitchell, {Donald. G.} and DA Constable and Chris Arridge and S.W.H. Cowley and G. Provan",
year = "2021",
month = jun,
day = "16",
doi = "10.1029/2020GL091595",
language = "English",
volume = "48",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "11",

}

RIS

TY - JOUR

T1 - The statistical morphology of Saturn's equatorial energetic neutral atom emission

AU - Kinrade, Joe

AU - Bader, Alexander

AU - Badman, Sarah

AU - Paranicas, C.

AU - Mitchell, Donald. G.

AU - Constable, DA

AU - Arridge, Chris

AU - Cowley, S.W.H.

AU - Provan, G.

PY - 2021/6/16

Y1 - 2021/6/16

N2 - Saturn'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 (INCA) to characterise Saturn’s average ENA morphology. Concentric tori are formed around the planet by oxygen and hydrogen ENAs, with intensity peaks between 7-10 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.

AB - Saturn'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 (INCA) to characterise Saturn’s average ENA morphology. Concentric tori are formed around the planet by oxygen and hydrogen ENAs, with intensity peaks between 7-10 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.

KW - Cassini INCA

KW - energetic neutral atoms

KW - Saturn’s magnetosphere

U2 - 10.1029/2020GL091595

DO - 10.1029/2020GL091595

M3 - Journal article

VL - 48

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 11

M1 - e2020GL091595

ER -