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Recurrent pulsations in Saturn’s high latitude magnetosphere

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Recurrent pulsations in Saturn’s high latitude magnetosphere. / Mitchell, D.G.; Carbary, J.F.; Bunce, E.J.; Radioti, A.; Badman, S.V.; Pryor, W.R.; Hospodarsky, G.B.; Kurth, W.S.

In: Icarus, Vol. 263, 01.01.2016, p. 94-100.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Mitchell, DG, Carbary, JF, Bunce, EJ, Radioti, A, Badman, SV, Pryor, WR, Hospodarsky, GB & Kurth, WS 2016, 'Recurrent pulsations in Saturn’s high latitude magnetosphere', Icarus, vol. 263, pp. 94-100. https://doi.org/10.1016/j.icarus.2014.10.028

APA

Mitchell, D. G., Carbary, J. F., Bunce, E. J., Radioti, A., Badman, S. V., Pryor, W. R., Hospodarsky, G. B., & Kurth, W. S. (2016). Recurrent pulsations in Saturn’s high latitude magnetosphere. Icarus, 263, 94-100. https://doi.org/10.1016/j.icarus.2014.10.028

Vancouver

Mitchell DG, Carbary JF, Bunce EJ, Radioti A, Badman SV, Pryor WR et al. Recurrent pulsations in Saturn’s high latitude magnetosphere. Icarus. 2016 Jan 1;263:94-100. https://doi.org/10.1016/j.icarus.2014.10.028

Author

Mitchell, D.G. ; Carbary, J.F. ; Bunce, E.J. ; Radioti, A. ; Badman, S.V. ; Pryor, W.R. ; Hospodarsky, G.B. ; Kurth, W.S. / Recurrent pulsations in Saturn’s high latitude magnetosphere. In: Icarus. 2016 ; Vol. 263. pp. 94-100.

Bibtex

@article{069bbce8b8a94e6fa45ccabae87c0144,
title = "Recurrent pulsations in Saturn{\textquoteright}s high latitude magnetosphere",
abstract = "Over the course of about 6 h on Day 129, 2008, the UV imaging spectrograph (UVIS) on the Cassini spacecraft observed a repeated intensification and broadening of the high latitude auroral oval into the polar cap. This feature repeated at least 5 times with about a 1 h period, as it rotated in the direction of corotation, somewhat below the planetary rotation rate, such that it moved from noon to post-dusk, and from roughly 77° to 82° northern latitudes during the observing interval. The recurring UV observation was accompanied by pronounced ∼1 h pulsations in auroral hiss power, magnetic perturbations consistent with small-scale field aligned currents, and energetic ion conics and electrons beaming upward parallel to the local magnetic field at the spacecraft location. The magnetic field and particle events are in phase with the auroral hiss pulsation. This event, taken in the context of the more thoroughly documented auroral hiss and particle signatures (seen on many high latitude Cassini orbits), sheds light on the possible driving mechanisms, the most likely of which are magnetopause reconnection and/or Kelvin Helmholtz waves.",
keywords = "Solar wind, Saturn, magnetosphere, Aurorae, Magnetospheres, Ionospheres",
author = "D.G. Mitchell and J.F. Carbary and E.J. Bunce and A. Radioti and S.V. Badman and W.R. Pryor and G.B. Hospodarsky and W.S. Kurth",
year = "2016",
month = jan,
day = "1",
doi = "10.1016/j.icarus.2014.10.028",
language = "English",
volume = "263",
pages = "94--100",
journal = "Icarus",
issn = "0019-1035",
publisher = "ELSEVIER ACADEMIC PRESS INC",

}

RIS

TY - JOUR

T1 - Recurrent pulsations in Saturn’s high latitude magnetosphere

AU - Mitchell, D.G.

AU - Carbary, J.F.

AU - Bunce, E.J.

AU - Radioti, A.

AU - Badman, S.V.

AU - Pryor, W.R.

AU - Hospodarsky, G.B.

AU - Kurth, W.S.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Over the course of about 6 h on Day 129, 2008, the UV imaging spectrograph (UVIS) on the Cassini spacecraft observed a repeated intensification and broadening of the high latitude auroral oval into the polar cap. This feature repeated at least 5 times with about a 1 h period, as it rotated in the direction of corotation, somewhat below the planetary rotation rate, such that it moved from noon to post-dusk, and from roughly 77° to 82° northern latitudes during the observing interval. The recurring UV observation was accompanied by pronounced ∼1 h pulsations in auroral hiss power, magnetic perturbations consistent with small-scale field aligned currents, and energetic ion conics and electrons beaming upward parallel to the local magnetic field at the spacecraft location. The magnetic field and particle events are in phase with the auroral hiss pulsation. This event, taken in the context of the more thoroughly documented auroral hiss and particle signatures (seen on many high latitude Cassini orbits), sheds light on the possible driving mechanisms, the most likely of which are magnetopause reconnection and/or Kelvin Helmholtz waves.

AB - Over the course of about 6 h on Day 129, 2008, the UV imaging spectrograph (UVIS) on the Cassini spacecraft observed a repeated intensification and broadening of the high latitude auroral oval into the polar cap. This feature repeated at least 5 times with about a 1 h period, as it rotated in the direction of corotation, somewhat below the planetary rotation rate, such that it moved from noon to post-dusk, and from roughly 77° to 82° northern latitudes during the observing interval. The recurring UV observation was accompanied by pronounced ∼1 h pulsations in auroral hiss power, magnetic perturbations consistent with small-scale field aligned currents, and energetic ion conics and electrons beaming upward parallel to the local magnetic field at the spacecraft location. The magnetic field and particle events are in phase with the auroral hiss pulsation. This event, taken in the context of the more thoroughly documented auroral hiss and particle signatures (seen on many high latitude Cassini orbits), sheds light on the possible driving mechanisms, the most likely of which are magnetopause reconnection and/or Kelvin Helmholtz waves.

KW - Solar wind

KW - Saturn

KW - magnetosphere

KW - Aurorae

KW - Magnetospheres

KW - Ionospheres

U2 - 10.1016/j.icarus.2014.10.028

DO - 10.1016/j.icarus.2014.10.028

M3 - Journal article

VL - 263

SP - 94

EP - 100

JO - Icarus

JF - Icarus

SN - 0019-1035

ER -