Home > Research > Publications & Outputs > Transient Pc3 wave activity generated by a hot ...

Associated organisational unit

Electronic data

Links

Text available via DOI:

View graph of relations

Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations

Research output: Contribution to journalJournal articlepeer-review

Published

Standard

Transient Pc3 wave activity generated by a hot flow anomaly : Cluster, Rosetta, and ground-based observations. / Eastwood, J.P.; Schwartz, S.J.; Horbury, T. S.; Carr, C.M.; Glassmeier, K.-H.; Richte, I.; Koenders, C.; Plaschke, F.; Wild, James.

In: Journal of Geophysical Research, Vol. 116, No. A8, A08224, 27.08.2011.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Eastwood, JP, Schwartz, SJ, Horbury, TS, Carr, CM, Glassmeier, K-H, Richte, I, Koenders, C, Plaschke, F & Wild, J 2011, 'Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations', Journal of Geophysical Research, vol. 116, no. A8, A08224. https://doi.org/10.1029/2011JA016467

APA

Eastwood, J. P., Schwartz, S. J., Horbury, T. S., Carr, C. M., Glassmeier, K-H., Richte, I., Koenders, C., Plaschke, F., & Wild, J. (2011). Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations. Journal of Geophysical Research, 116(A8), [A08224]. https://doi.org/10.1029/2011JA016467

Vancouver

Eastwood JP, Schwartz SJ, Horbury TS, Carr CM, Glassmeier K-H, Richte I et al. Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations. Journal of Geophysical Research. 2011 Aug 27;116(A8). A08224. https://doi.org/10.1029/2011JA016467

Author

Eastwood, J.P. ; Schwartz, S.J. ; Horbury, T. S. ; Carr, C.M. ; Glassmeier, K.-H. ; Richte, I. ; Koenders, C. ; Plaschke, F. ; Wild, James. / Transient Pc3 wave activity generated by a hot flow anomaly : Cluster, Rosetta, and ground-based observations. In: Journal of Geophysical Research. 2011 ; Vol. 116, No. A8.

Bibtex

@article{879981b8c09240888021c0ab08535bb8,
title = "Transient Pc3 wave activity generated by a hot flow anomaly: Cluster, Rosetta, and ground-based observations",
abstract = "Pc3 pulsations are observed in the magnetosphere with wave periods of 10–45 s. Two distinct populations have been observed; one exhibits a frequency dependence on the solar wind magnetic field strength, whereas the other does not. The first population is explained in terms of a model where the bow shock reflects ions which generate upstream foreshock ULF waves. These waves are convected through the shock to the dayside magnetopause and thus to the magnetosphere. The source of the second population is not well understood. In this paper we examine the generation of a transient patch of Pc3 wave activity due to a hot flow anomaly (HFA) using a unique spacecraft conjunction that occurred during the first Earth flyby of the Rosetta spacecraft. Cluster, upstream of the bow shock and close to the Sun-Earth line observed an HFA. At this time Rosetta was nearing closest approach and together with ground magnetometer stations, observed a transient interval of Pc3 wave activity. Analysis also shows that the Pc3 waves occurred in the absence of a ULF wavefield just upstream of the bow shock. This result shows that HFAs can be a source of Pc3 wave activity, and may explain in part the origin of the second population of Pc3 waves. It also demonstrates in new detail the manner in which kinetic physics at the bow shock, driven by structure in the solar wind, can influence magnetospheric dynamics.",
author = "J.P. Eastwood and S.J. Schwartz and Horbury, {T. S.} and C.M. Carr and K.-H. Glassmeier and I. Richte and C. Koenders and F. Plaschke and James Wild",
year = "2011",
month = aug,
day = "27",
doi = "10.1029/2011JA016467",
language = "English",
volume = "116",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
publisher = "American Geophysical Union",
number = "A8",

}

RIS

TY - JOUR

T1 - Transient Pc3 wave activity generated by a hot flow anomaly

T2 - Cluster, Rosetta, and ground-based observations

AU - Eastwood, J.P.

AU - Schwartz, S.J.

AU - Horbury, T. S.

AU - Carr, C.M.

AU - Glassmeier, K.-H.

AU - Richte, I.

AU - Koenders, C.

AU - Plaschke, F.

AU - Wild, James

PY - 2011/8/27

Y1 - 2011/8/27

N2 - Pc3 pulsations are observed in the magnetosphere with wave periods of 10–45 s. Two distinct populations have been observed; one exhibits a frequency dependence on the solar wind magnetic field strength, whereas the other does not. The first population is explained in terms of a model where the bow shock reflects ions which generate upstream foreshock ULF waves. These waves are convected through the shock to the dayside magnetopause and thus to the magnetosphere. The source of the second population is not well understood. In this paper we examine the generation of a transient patch of Pc3 wave activity due to a hot flow anomaly (HFA) using a unique spacecraft conjunction that occurred during the first Earth flyby of the Rosetta spacecraft. Cluster, upstream of the bow shock and close to the Sun-Earth line observed an HFA. At this time Rosetta was nearing closest approach and together with ground magnetometer stations, observed a transient interval of Pc3 wave activity. Analysis also shows that the Pc3 waves occurred in the absence of a ULF wavefield just upstream of the bow shock. This result shows that HFAs can be a source of Pc3 wave activity, and may explain in part the origin of the second population of Pc3 waves. It also demonstrates in new detail the manner in which kinetic physics at the bow shock, driven by structure in the solar wind, can influence magnetospheric dynamics.

AB - Pc3 pulsations are observed in the magnetosphere with wave periods of 10–45 s. Two distinct populations have been observed; one exhibits a frequency dependence on the solar wind magnetic field strength, whereas the other does not. The first population is explained in terms of a model where the bow shock reflects ions which generate upstream foreshock ULF waves. These waves are convected through the shock to the dayside magnetopause and thus to the magnetosphere. The source of the second population is not well understood. In this paper we examine the generation of a transient patch of Pc3 wave activity due to a hot flow anomaly (HFA) using a unique spacecraft conjunction that occurred during the first Earth flyby of the Rosetta spacecraft. Cluster, upstream of the bow shock and close to the Sun-Earth line observed an HFA. At this time Rosetta was nearing closest approach and together with ground magnetometer stations, observed a transient interval of Pc3 wave activity. Analysis also shows that the Pc3 waves occurred in the absence of a ULF wavefield just upstream of the bow shock. This result shows that HFAs can be a source of Pc3 wave activity, and may explain in part the origin of the second population of Pc3 waves. It also demonstrates in new detail the manner in which kinetic physics at the bow shock, driven by structure in the solar wind, can influence magnetospheric dynamics.

U2 - 10.1029/2011JA016467

DO - 10.1029/2011JA016467

M3 - Journal article

VL - 116

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

IS - A8

M1 - A08224

ER -