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Transpolar arc observation after solar wind entry into the high-latitude magnetosphere

Transpolar arc observation after solar wind entry into the high-latitude magnetosphere
Transpolar arc observation after solar wind entry into the high-latitude magnetosphere
Recently, Cluster observations have revealed the presence of new regions of solar wind plasma entry at the high-latitude magnetospheric lobes tailward of the cusp region, mostly during periods of northward interplanetary magnetic field. In this study, observations from the Global Ultraviolet Imager (GUVI) experiment on board the TIMED spacecraft and Wideband Imaging Camera imager on board the IMAGE satellite are used to investigate a possible link between solar wind entry and the formation of transpolar arcs in the polar cap. We focus on a case when transpolar arc formation was observed twice right after the two solar wind entry events were detected by the Cluster spacecraft. In addition, GUVI and IMAGE observations show a simultaneous occurrence of auroral activity at low and high latitudes after the second entry event, possibly indicating a two-part structure of the continuous band of the transpolar arc.
2169-9380
3525-3534
Mailyan, B.
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Shi, Q.Q.
cbfafb31-3489-424c-8014-2bb9ef9b8c22
Kullen, A.
9575b1dc-27c9-4367-b77a-045c1746ae39
Maggiolo, R.
fcff31b8-6923-4923-bec3-9fbe1ceb8cde
Zhang, Y.
c6568601-0e54-46d9-996e-564abd37fb83
Fear, R.C.
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Zong, Q.-G.
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Fu, S.Y.
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Gou, X.C.
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Cao, X.
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Yao, Z.H.
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Sun, W.J.
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Wei, Y.
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Pu, Z.Y.
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Mailyan, B.
29ccf113-4226-4468-8f03-b33083730ff7
Shi, Q.Q.
cbfafb31-3489-424c-8014-2bb9ef9b8c22
Kullen, A.
9575b1dc-27c9-4367-b77a-045c1746ae39
Maggiolo, R.
fcff31b8-6923-4923-bec3-9fbe1ceb8cde
Zhang, Y.
c6568601-0e54-46d9-996e-564abd37fb83
Fear, R.C.
8755b9ed-c7dc-4cbb-ac9b-56235a0431ab
Zong, Q.-G.
e9f22a15-b353-4a57-8e91-7075a2068c9d
Fu, S.Y.
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Gou, X.C.
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Cao, X.
eacd9887-ba51-4378-8eda-53d221172b47
Yao, Z.H.
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Sun, W.J.
957c48bb-2d5a-4e3f-b5be-8a53f3c655d2
Wei, Y.
93d12bb1-e36e-4cd7-ae6c-40a3c669fe4a
Pu, Z.Y.
8a9fcc4e-b433-4c73-8ef2-b50ecee6a077

Mailyan, B., Shi, Q.Q., Kullen, A., Maggiolo, R., Zhang, Y., Fear, R.C., Zong, Q.-G., Fu, S.Y., Gou, X.C., Cao, X., Yao, Z.H., Sun, W.J., Wei, Y. and Pu, Z.Y. (2015) Transpolar arc observation after solar wind entry into the high-latitude magnetosphere Journal of Geophysical Research: Space Physics, 120, (5), pp. 3525-3534.

Record type: Article

Abstract

Recently, Cluster observations have revealed the presence of new regions of solar wind plasma entry at the high-latitude magnetospheric lobes tailward of the cusp region, mostly during periods of northward interplanetary magnetic field. In this study, observations from the Global Ultraviolet Imager (GUVI) experiment on board the TIMED spacecraft and Wideband Imaging Camera imager on board the IMAGE satellite are used to investigate a possible link between solar wind entry and the formation of transpolar arcs in the polar cap. We focus on a case when transpolar arc formation was observed twice right after the two solar wind entry events were detected by the Cluster spacecraft. In addition, GUVI and IMAGE observations show a simultaneous occurrence of auroral activity at low and high latitudes after the second entry event, possibly indicating a two-part structure of the continuous band of the transpolar arc.

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Accepted/In Press date: 26 March 2015
Published date: 13 May 2015
Additional Information: Copyright (2016) American Geophysical Union. Further reproduction or electronic distribution is not permitted.
Organisations: Astronomy Group

Identifiers

Local EPrints ID: 394180
URI: http://eprints.soton.ac.uk/id/eprint/394180
ISSN: 2169-9380
PURE UUID: 7a5b8dba-a21e-4640-9d46-d5d8edd3b5b1
ORCID for R.C. Fear: ORCID iD orcid.org/0000-0003-0589-7147

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Date deposited: 12 May 2016 11:34
Last modified: 31 Oct 2017 04:55

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Contributors

Author: B. Mailyan
Author: Q.Q. Shi
Author: A. Kullen
Author: R. Maggiolo
Author: Y. Zhang
Author: R.C. Fear ORCID iD
Author: Q.-G. Zong
Author: S.Y. Fu
Author: X.C. Gou
Author: X. Cao
Author: Z.H. Yao
Author: W.J. Sun
Author: Y. Wei
Author: Z.Y. Pu

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