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    Rights statement: This is the peer reviewed version of the following article Martin, C. J., Arridge, C. S., Case, N. A., & Ray, L. C. ( 2019). Vertical current density structure of Saturn's equatorial current sheet. Journal of Geophysical Research: Space Physics, 124, 5097– 5106. https://doi.org/10.1029/2019JA026767 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JA026767 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Vertical Current Density Structure of Saturn's Equatorial Current Sheet

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Vertical Current Density Structure of Saturn's Equatorial Current Sheet. / Martin, Carley; Arridge, Chris; Case, Nathan et al.
In: Journal of Geophysical Research: Space Physics, Vol. 124, No. 7, 30.07.2019, p. 5097-5106.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Martin C, Arridge C, Case N, Ray LC. Vertical Current Density Structure of Saturn's Equatorial Current Sheet. Journal of Geophysical Research: Space Physics. 2019 Jul 30;124(7):5097-5106. Epub 2019 Jul 4. doi: 10.1029/2019JA026767

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Martin, Carley ; Arridge, Chris ; Case, Nathan et al. / Vertical Current Density Structure of Saturn's Equatorial Current Sheet. In: Journal of Geophysical Research: Space Physics. 2019 ; Vol. 124, No. 7. pp. 5097-5106.

Bibtex

@article{756a0dd30b0f463596f0e26095589308,
title = "Vertical Current Density Structure of Saturn's Equatorial Current Sheet",
abstract = "Routine spacecraft encounters with the Saturn current sheet due to the passage of aperiodic waves provide the opportunity to analyze the current sheet structure. The current density is expected to peak where the field strength reaches a minimum if approximated as a Harris current sheet. However, in Earth's magnetotail this is not always the case as the sheet is sometimes bifurcated (having two or more maxima in the current density). We utilize measurements of Saturn's magnetic field to estimate the current density during crossings of the current sheet by time differentiating the B a component of the field in a current sheet coordinate system, where B a is perpendicular to both the current and current sheet normal. This is then averaged and organized by the magnitude of B a. Using this method, we can identify a classical Harris-style or bifurcated current sheet as a peak at the center or two distinct maxima on either side of B a=0, respectively. We find that around 10% of current sheet profiles exhibit a bifurcated current sheet signature, which is substantially lower than an ∼25% occurrence rate at Earth. ",
author = "Carley Martin and Chris Arridge and Nathan Case and Ray, {Licia C}",
note = "This is the peer reviewed version of the following article Martin, C. J., Arridge, C. S., Case, N. A., & Ray, L. C. ( 2019). Vertical current density structure of Saturn's equatorial current sheet. Journal of Geophysical Research: Space Physics, 124, 5097– 5106. https://doi.org/10.1029/2019JA026767 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JA026767 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving. ",
year = "2019",
month = jul,
day = "30",
doi = "10.1029/2019JA026767",
language = "English",
volume = "124",
pages = "5097--5106",
journal = "Journal of Geophysical Research: Space Physics",
issn = "2169-9402",
publisher = "Blackwell Publishing Ltd",
number = "7",

}

RIS

TY - JOUR

T1 - Vertical Current Density Structure of Saturn's Equatorial Current Sheet

AU - Martin, Carley

AU - Arridge, Chris

AU - Case, Nathan

AU - Ray, Licia C

N1 - This is the peer reviewed version of the following article Martin, C. J., Arridge, C. S., Case, N. A., & Ray, L. C. ( 2019). Vertical current density structure of Saturn's equatorial current sheet. Journal of Geophysical Research: Space Physics, 124, 5097– 5106. https://doi.org/10.1029/2019JA026767 which has been published in final form at https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JA026767 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2019/7/30

Y1 - 2019/7/30

N2 - Routine spacecraft encounters with the Saturn current sheet due to the passage of aperiodic waves provide the opportunity to analyze the current sheet structure. The current density is expected to peak where the field strength reaches a minimum if approximated as a Harris current sheet. However, in Earth's magnetotail this is not always the case as the sheet is sometimes bifurcated (having two or more maxima in the current density). We utilize measurements of Saturn's magnetic field to estimate the current density during crossings of the current sheet by time differentiating the B a component of the field in a current sheet coordinate system, where B a is perpendicular to both the current and current sheet normal. This is then averaged and organized by the magnitude of B a. Using this method, we can identify a classical Harris-style or bifurcated current sheet as a peak at the center or two distinct maxima on either side of B a=0, respectively. We find that around 10% of current sheet profiles exhibit a bifurcated current sheet signature, which is substantially lower than an ∼25% occurrence rate at Earth.

AB - Routine spacecraft encounters with the Saturn current sheet due to the passage of aperiodic waves provide the opportunity to analyze the current sheet structure. The current density is expected to peak where the field strength reaches a minimum if approximated as a Harris current sheet. However, in Earth's magnetotail this is not always the case as the sheet is sometimes bifurcated (having two or more maxima in the current density). We utilize measurements of Saturn's magnetic field to estimate the current density during crossings of the current sheet by time differentiating the B a component of the field in a current sheet coordinate system, where B a is perpendicular to both the current and current sheet normal. This is then averaged and organized by the magnitude of B a. Using this method, we can identify a classical Harris-style or bifurcated current sheet as a peak at the center or two distinct maxima on either side of B a=0, respectively. We find that around 10% of current sheet profiles exhibit a bifurcated current sheet signature, which is substantially lower than an ∼25% occurrence rate at Earth.

U2 - 10.1029/2019JA026767

DO - 10.1029/2019JA026767

M3 - Journal article

VL - 124

SP - 5097

EP - 5106

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

SN - 2169-9402

IS - 7

ER -