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Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements

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Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements. / Yao, Z. H.; Radioti, A.; Rae, I. J. et al.
In: Geophysical Research Letters, Vol. 44, No. 22, 28.11.2017, p. 11,217-11,228.

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

Harvard

Yao, ZH, Radioti, A, Rae, IJ, Liu, J, Grodent, D, Ray, LC, Badman, SV, Coates, AJ, Gérard, JC, Waite, JH, Yates, JN, Shi, QQ, Wei, Y, Bonfond, B, Dougherty, MK, Roussos, E, Sergis, N & Palmaerts, B 2017, 'Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements', Geophysical Research Letters, vol. 44, no. 22, pp. 11,217-11,228. https://doi.org/10.1002/2017GL075108

APA

Yao, Z. H., Radioti, A., Rae, I. J., Liu, J., Grodent, D., Ray, L. C., Badman, S. V., Coates, A. J., Gérard, J. C., Waite, J. H., Yates, J. N., Shi, Q. Q., Wei, Y., Bonfond, B., Dougherty, M. K., Roussos, E., Sergis, N., & Palmaerts, B. (2017). Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements. Geophysical Research Letters, 44(22), 11,217-11,228. https://doi.org/10.1002/2017GL075108

Vancouver

Yao ZH, Radioti A, Rae IJ, Liu J, Grodent D, Ray LC et al. Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements. Geophysical Research Letters. 2017 Nov 28;44(22):11,217-11,228. Epub 2017 Nov 18. doi: 10.1002/2017GL075108

Author

Yao, Z. H. ; Radioti, A. ; Rae, I. J. et al. / Mechanisms of Saturn's Near-Noon Transient Aurora : In Situ Evidence From Cassini Measurements. In: Geophysical Research Letters. 2017 ; Vol. 44, No. 22. pp. 11,217-11,228.

Bibtex

@article{548793ccbe4e4657ad869e30f91a09f6,
title = "Mechanisms of Saturn's Near-Noon Transient Aurora: In Situ Evidence From Cassini Measurements",
abstract = "Although auroral emissions at giant planets have been observed for decades, the physical mechanisms of aurorae at giant planets remain unclear. One key reason is the lack of simultaneous measurements in the magnetosphere while remote sensing of the aurora. We report a dynamic auroral event identified with the Cassini Ultraviolet Imaging Spectrograph (UVIS) at Saturn on 13 July 2008 with coordinated measurements of the magnetic field and plasma in the magnetosphere. The auroral intensification was transient, only lasting for ∼30 min. The magnetic field and plasma are perturbed during the auroral intensification period. We suggest that this intensification was caused by wave mode conversion generated field-aligned currents, and we propose two potential mechanisms for the generation of this plasma wave and the transient auroral intensification. A survey of the Cassini UVIS database reveals that this type of transient auroral intensification is very common (10/11 time sequences, and ∼10% of the total images).",
keywords = "Aurora, Cassini, Field-aligned current, Plasma wave, Saturn",
author = "Yao, {Z. H.} and A. Radioti and Rae, {I. J.} and J. Liu and D. Grodent and Ray, {L. C.} and Badman, {S. V.} and Coates, {A. J.} and G{\'e}rard, {J. C.} and Waite, {J. H.} and Yates, {J. N.} and Shi, {Q. Q.} and Y. Wei and B. Bonfond and Dougherty, {M. K.} and E. Roussos and N. Sergis and B. Palmaerts",
year = "2017",
month = nov,
day = "28",
doi = "10.1002/2017GL075108",
language = "English",
volume = "44",
pages = "11,217--11,228",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "22",

}

RIS

TY - JOUR

T1 - Mechanisms of Saturn's Near-Noon Transient Aurora

T2 - In Situ Evidence From Cassini Measurements

AU - Yao, Z. H.

AU - Radioti, A.

AU - Rae, I. J.

AU - Liu, J.

AU - Grodent, D.

AU - Ray, L. C.

AU - Badman, S. V.

AU - Coates, A. J.

AU - Gérard, J. C.

AU - Waite, J. H.

AU - Yates, J. N.

AU - Shi, Q. Q.

AU - Wei, Y.

AU - Bonfond, B.

AU - Dougherty, M. K.

AU - Roussos, E.

AU - Sergis, N.

AU - Palmaerts, B.

PY - 2017/11/28

Y1 - 2017/11/28

N2 - Although auroral emissions at giant planets have been observed for decades, the physical mechanisms of aurorae at giant planets remain unclear. One key reason is the lack of simultaneous measurements in the magnetosphere while remote sensing of the aurora. We report a dynamic auroral event identified with the Cassini Ultraviolet Imaging Spectrograph (UVIS) at Saturn on 13 July 2008 with coordinated measurements of the magnetic field and plasma in the magnetosphere. The auroral intensification was transient, only lasting for ∼30 min. The magnetic field and plasma are perturbed during the auroral intensification period. We suggest that this intensification was caused by wave mode conversion generated field-aligned currents, and we propose two potential mechanisms for the generation of this plasma wave and the transient auroral intensification. A survey of the Cassini UVIS database reveals that this type of transient auroral intensification is very common (10/11 time sequences, and ∼10% of the total images).

AB - Although auroral emissions at giant planets have been observed for decades, the physical mechanisms of aurorae at giant planets remain unclear. One key reason is the lack of simultaneous measurements in the magnetosphere while remote sensing of the aurora. We report a dynamic auroral event identified with the Cassini Ultraviolet Imaging Spectrograph (UVIS) at Saturn on 13 July 2008 with coordinated measurements of the magnetic field and plasma in the magnetosphere. The auroral intensification was transient, only lasting for ∼30 min. The magnetic field and plasma are perturbed during the auroral intensification period. We suggest that this intensification was caused by wave mode conversion generated field-aligned currents, and we propose two potential mechanisms for the generation of this plasma wave and the transient auroral intensification. A survey of the Cassini UVIS database reveals that this type of transient auroral intensification is very common (10/11 time sequences, and ∼10% of the total images).

KW - Aurora

KW - Cassini

KW - Field-aligned current

KW - Plasma wave

KW - Saturn

U2 - 10.1002/2017GL075108

DO - 10.1002/2017GL075108

M3 - Journal article

VL - 44

SP - 11,217-11,228

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 22

ER -