A Possible Unified Picture for the Connected Recurrent Magnetic Dipolarization, Quasi‐Periodic ENA Enhancement, SKR Low‐Frequency Extension and Narrowband Emission at Saturn

Physics

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Space and Planetary Physics

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https://doi.org/10.1029/2023ja031445
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Available under license: CC BY: Creative Commons Attribution 4.0 International License

Keywords

ENA, partial ring current, narrow band emission, dipolarization, SKR

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A Possible Unified Picture for the Connected Recurrent Magnetic Dipolarization, Quasi‐Periodic ENA Enhancement, SKR Low‐Frequency Extension and Narrowband Emission at Saturn. / Xu, Y.; Yao, Z. H.; Ye, S.‐Y. et al.
In: Journal of Geophysical Research: Space Physics, Vol. 128, No. 9, e2023JA031445, 30.09.2023.

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

Bibtex

@article{9f9173e0ff5d47bc8b37a4cd9171d21f,

title = "A Possible Unified Picture for the Connected Recurrent Magnetic Dipolarization, Quasi‐Periodic ENA Enhancement, SKR Low‐Frequency Extension and Narrowband Emission at Saturn",

abstract = "Magnetic Dipolarization, a hallmark indicator of the formation of field‐aligned currents, plays a crucial role in the energy dissipative processes that occur within planetary magnetospheres. Saturn's magnetic dipolarization was found to recur after one planetary rotation, suggesting a potential correlation with the corotating current systems. The observation of enhanced Energetic Neutral Atoms (ENA) within Saturn's inner magnetosphere serves as a diagnostic tool, revealing the existence of a rotating, dynamic Partial Ring Current (PRC) system. By utilizing multiple datasets from Cassini, this study advances the understanding of the interrelationship between ENA emission and magnetic dipolarization. Our results suggest the possibility of a coupling between the PRC system revealed by the ENA emission and magnetic dipolarization. Furthermore, a temporal correlation was found between the ENA emissions and two distinct radio emissions. This study discusses potential causal relationships among these phenomena and first time proposes a global unified physical picture.",

keywords = "ENA, partial ring current, narrow band emission, dipolarization, SKR",

author = "Y. Xu and Yao, {Z. H.} and S.‐Y. Ye and Badman, {S. V.} and K. Dialynas and N. Sergis and Ray, {L. C.} and Guo, {R. L.} and Pan, {D. X.} and Dunn, {W. R.} and B. Zhang and A. Bader and J. Kinrade and Wu, {S. Y.} and Coates, {A. J.} and Mitchell, {D. G.} and Y. Wei",

year = "2023",

month = sep,

day = "30",

doi = "10.1029/2023ja031445",

language = "English",

volume = "128",

journal = "Journal of Geophysical Research: Space Physics",

issn = "2169-9402",

publisher = "Blackwell Publishing Ltd",

number = "9",

}

RIS

TY - JOUR

T1 - A Possible Unified Picture for the Connected Recurrent Magnetic Dipolarization, Quasi‐Periodic ENA Enhancement, SKR Low‐Frequency Extension and Narrowband Emission at Saturn

AU - Xu, Y.

AU - Yao, Z. H.

AU - Ye, S.‐Y.

AU - Badman, S. V.

AU - Dialynas, K.

AU - Sergis, N.

AU - Ray, L. C.

AU - Guo, R. L.

AU - Pan, D. X.

AU - Dunn, W. R.

AU - Zhang, B.

AU - Bader, A.

AU - Kinrade, J.

AU - Wu, S. Y.

AU - Coates, A. J.

AU - Mitchell, D. G.

AU - Wei, Y.

PY - 2023/9/30

Y1 - 2023/9/30

N2 - Magnetic Dipolarization, a hallmark indicator of the formation of field‐aligned currents, plays a crucial role in the energy dissipative processes that occur within planetary magnetospheres. Saturn's magnetic dipolarization was found to recur after one planetary rotation, suggesting a potential correlation with the corotating current systems. The observation of enhanced Energetic Neutral Atoms (ENA) within Saturn's inner magnetosphere serves as a diagnostic tool, revealing the existence of a rotating, dynamic Partial Ring Current (PRC) system. By utilizing multiple datasets from Cassini, this study advances the understanding of the interrelationship between ENA emission and magnetic dipolarization. Our results suggest the possibility of a coupling between the PRC system revealed by the ENA emission and magnetic dipolarization. Furthermore, a temporal correlation was found between the ENA emissions and two distinct radio emissions. This study discusses potential causal relationships among these phenomena and first time proposes a global unified physical picture.

AB - Magnetic Dipolarization, a hallmark indicator of the formation of field‐aligned currents, plays a crucial role in the energy dissipative processes that occur within planetary magnetospheres. Saturn's magnetic dipolarization was found to recur after one planetary rotation, suggesting a potential correlation with the corotating current systems. The observation of enhanced Energetic Neutral Atoms (ENA) within Saturn's inner magnetosphere serves as a diagnostic tool, revealing the existence of a rotating, dynamic Partial Ring Current (PRC) system. By utilizing multiple datasets from Cassini, this study advances the understanding of the interrelationship between ENA emission and magnetic dipolarization. Our results suggest the possibility of a coupling between the PRC system revealed by the ENA emission and magnetic dipolarization. Furthermore, a temporal correlation was found between the ENA emissions and two distinct radio emissions. This study discusses potential causal relationships among these phenomena and first time proposes a global unified physical picture.

KW - ENA

KW - partial ring current

KW - narrow band emission

KW - dipolarization

KW - SKR

U2 - 10.1029/2023ja031445

DO - 10.1029/2023ja031445

M3 - Journal article

VL - 128

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

SN - 2169-9402

IS - 9

M1 - e2023JA031445

ER -

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