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Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection

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Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection. / Jackman, C. M.; Thomsen, M. F.; Mitchell, D. G. et al.
In: Journal of Geophysical Research: Space Physics, Vol. 120, No. 5, 05.2015, p. 3603-3617.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Jackman, CM, Thomsen, MF, Mitchell, DG, Sergis, N, Arridge, CS, Felici, M, Badman, SV, Paranicas, C, Jia, X, Hospodarksy, GB, Andriopoulou, M, Khurana, KK, Smith, AW & Dougherty, MK 2015, 'Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection', Journal of Geophysical Research: Space Physics, vol. 120, no. 5, pp. 3603-3617. https://doi.org/10.1002/2015JA020995

APA

Jackman, C. M., Thomsen, M. F., Mitchell, D. G., Sergis, N., Arridge, C. S., Felici, M., Badman, S. V., Paranicas, C., Jia, X., Hospodarksy, G. B., Andriopoulou, M., Khurana, K. K., Smith, A. W., & Dougherty, M. K. (2015). Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection. Journal of Geophysical Research: Space Physics, 120(5), 3603-3617. https://doi.org/10.1002/2015JA020995

Vancouver

Jackman CM, Thomsen MF, Mitchell DG, Sergis N, Arridge CS, Felici M et al. Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection. Journal of Geophysical Research: Space Physics. 2015 May;120(5):3603-3617. Epub 2015 May 19. doi: 10.1002/2015JA020995

Author

Jackman, C. M. ; Thomsen, M. F. ; Mitchell, D. G. et al. / Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts : evidence of quasi-steady reconnection. In: Journal of Geophysical Research: Space Physics. 2015 ; Vol. 120, No. 5. pp. 3603-3617.

Bibtex

@article{214fc9da86e7467fa3c1c7bda082554b,
title = "Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts: evidence of quasi-steady reconnection",
abstract = "We present a case study of an event from 20 August (day 232) of 2006, when the Cassini spacecraft was sampling the region near 32 R-S and 22 h LT in Saturn's magnetotail. Cassini observed a strong northward-to-southward turning of the magnetic field, which is interpreted as the signature of dipolarization of the field as seen by the spacecraft planetward of the reconnection X line. This event was accompanied by very rapid (up to similar to 1500 km s(-1)) thermal plasma flow toward the planet. At energies above 28 keV, energetic hydrogen and oxygen ion flow bursts were observed to stream planetward from a reconnection site downtail of the spacecraft. Meanwhile, a strong field-aligned beam of energetic hydrogen was also observed to stream tailward, likely from an ionospheric source. Saturn kilometric radiation emissions were stimulated shortly after the observation of the dipolarization. We discuss the field, plasma, energetic particle, and radio observations in the context of the impact this reconnection event had on global magnetospheric dynamics.",
keywords = "SHEET BOUNDARY-LAYER, PLASMA SHEET, MAGNETIC-FIELD, MAGNETOSPHERIC SUBSTORMS, NIGHTSIDE MAGNETOSPHERE, ALIGNED BEAMS, ELECTRON, DYNAMICS, DISTRIBUTIONS, SPECTROMETER",
author = "Jackman, {C. M.} and Thomsen, {M. F.} and Mitchell, {D. G.} and N. Sergis and Arridge, {C. S.} and M. Felici and Badman, {S. V.} and C. Paranicas and X. Jia and Hospodarksy, {G. B.} and M. Andriopoulou and Khurana, {K. K.} and Smith, {A. W.} and Dougherty, {M. K.}",
note = "{\textcopyright}2015. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.",
year = "2015",
month = may,
doi = "10.1002/2015JA020995",
language = "English",
volume = "120",
pages = "3603--3617",
journal = "Journal of Geophysical Research: Space Physics",
issn = "2169-9380",
publisher = "Blackwell Publishing Ltd",
number = "5",

}

RIS

TY - JOUR

T1 - Field dipolarization in Saturn's magnetotail with planetward ion flows and energetic particle flow bursts

T2 - evidence of quasi-steady reconnection

AU - Jackman, C. M.

AU - Thomsen, M. F.

AU - Mitchell, D. G.

AU - Sergis, N.

AU - Arridge, C. S.

AU - Felici, M.

AU - Badman, S. V.

AU - Paranicas, C.

AU - Jia, X.

AU - Hospodarksy, G. B.

AU - Andriopoulou, M.

AU - Khurana, K. K.

AU - Smith, A. W.

AU - Dougherty, M. K.

N1 - ©2015. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

PY - 2015/5

Y1 - 2015/5

N2 - We present a case study of an event from 20 August (day 232) of 2006, when the Cassini spacecraft was sampling the region near 32 R-S and 22 h LT in Saturn's magnetotail. Cassini observed a strong northward-to-southward turning of the magnetic field, which is interpreted as the signature of dipolarization of the field as seen by the spacecraft planetward of the reconnection X line. This event was accompanied by very rapid (up to similar to 1500 km s(-1)) thermal plasma flow toward the planet. At energies above 28 keV, energetic hydrogen and oxygen ion flow bursts were observed to stream planetward from a reconnection site downtail of the spacecraft. Meanwhile, a strong field-aligned beam of energetic hydrogen was also observed to stream tailward, likely from an ionospheric source. Saturn kilometric radiation emissions were stimulated shortly after the observation of the dipolarization. We discuss the field, plasma, energetic particle, and radio observations in the context of the impact this reconnection event had on global magnetospheric dynamics.

AB - We present a case study of an event from 20 August (day 232) of 2006, when the Cassini spacecraft was sampling the region near 32 R-S and 22 h LT in Saturn's magnetotail. Cassini observed a strong northward-to-southward turning of the magnetic field, which is interpreted as the signature of dipolarization of the field as seen by the spacecraft planetward of the reconnection X line. This event was accompanied by very rapid (up to similar to 1500 km s(-1)) thermal plasma flow toward the planet. At energies above 28 keV, energetic hydrogen and oxygen ion flow bursts were observed to stream planetward from a reconnection site downtail of the spacecraft. Meanwhile, a strong field-aligned beam of energetic hydrogen was also observed to stream tailward, likely from an ionospheric source. Saturn kilometric radiation emissions were stimulated shortly after the observation of the dipolarization. We discuss the field, plasma, energetic particle, and radio observations in the context of the impact this reconnection event had on global magnetospheric dynamics.

KW - SHEET BOUNDARY-LAYER

KW - PLASMA SHEET

KW - MAGNETIC-FIELD

KW - MAGNETOSPHERIC SUBSTORMS

KW - NIGHTSIDE MAGNETOSPHERE

KW - ALIGNED BEAMS

KW - ELECTRON

KW - DYNAMICS

KW - DISTRIBUTIONS

KW - SPECTROMETER

U2 - 10.1002/2015JA020995

DO - 10.1002/2015JA020995

M3 - Journal article

VL - 120

SP - 3603

EP - 3617

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

SN - 2169-9380

IS - 5

ER -