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In situ observations of the effect of a solar wind compression on Saturn's magnetotail

In situ observations of the effect of a solar wind compression on Saturn's magnetotail
In situ observations of the effect of a solar wind compression on Saturn's magnetotail

In this paper we explore the dynamic response of Saturn's magnetotail to an episode of solar wind compression that took place while Cassini was sampling Saturn's nightside equatorial magnetosphere in 2006. Following an initial increase in solar wind dynamic pressure the magnetosphere was compressed, but over several subsequent days the flaring of the tail increased as open flux built up in the tail lobes. Several days later the current sheet was displaced southward from its previously hinged position, and magnetic signatures consistent with the passage of a plasmoid were observed. Concurrently, Saturn's kilometric radio emissions were enhanced and the spectrum displayed a continuous extension to lower frequency, corresponding to radio sources detected at higher altitudes. We suggest that all of the above features are a common consequence of the impact of a solar wind compression on Saturn's magnetosphere.

2169-9380
Jackman, C.M.
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Arridge, C.S.
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Slavin, J.A.
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Milan, S.E.
b6dd5367-b0c4-4f30-953a-f2d13078d656
Lamy, L.
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Dougherty, M.K.
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Coates, A.J.
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Jackman, C.M.
9bc3456c-b254-48f1-ade0-912c5b8b4529
Arridge, C.S.
2efb7acf-be5b-41b4-bade-8b4ff0d78236
Slavin, J.A.
18c6ffa4-123f-47db-a157-2d8865090bbd
Milan, S.E.
b6dd5367-b0c4-4f30-953a-f2d13078d656
Lamy, L.
aad11182-ba51-4937-99f3-cf983891abdd
Dougherty, M.K.
aa297043-7e86-4501-952b-a6363edaaba8
Coates, A.J.
61022799-2e2b-46da-a964-23d9aaebe455

Jackman, C.M., Arridge, C.S., Slavin, J.A., Milan, S.E., Lamy, L., Dougherty, M.K. and Coates, A.J. (2010) In situ observations of the effect of a solar wind compression on Saturn's magnetotail. Journal of Geophysical Research: Space Physics, 115 (10), [A10240]. (doi:10.1029/2010JA015312).

Record type: Article

Abstract

In this paper we explore the dynamic response of Saturn's magnetotail to an episode of solar wind compression that took place while Cassini was sampling Saturn's nightside equatorial magnetosphere in 2006. Following an initial increase in solar wind dynamic pressure the magnetosphere was compressed, but over several subsequent days the flaring of the tail increased as open flux built up in the tail lobes. Several days later the current sheet was displaced southward from its previously hinged position, and magnetic signatures consistent with the passage of a plasmoid were observed. Concurrently, Saturn's kilometric radio emissions were enhanced and the spectrum displayed a continuous extension to lower frequency, corresponding to radio sources detected at higher altitudes. We suggest that all of the above features are a common consequence of the impact of a solar wind compression on Saturn's magnetosphere.

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Published date: October 2010

Identifiers

Local EPrints ID: 437319
URI: http://eprints.soton.ac.uk/id/eprint/437319
ISSN: 2169-9380
PURE UUID: 2ce2dc57-43c2-4e1f-9e5c-51b3627d39b2
ORCID for C.M. Jackman: ORCID iD orcid.org/0000-0003-0635-7361

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Date deposited: 24 Jan 2020 17:31
Last modified: 10 Nov 2021 03:35

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Contributors

Author: C.M. Jackman ORCID iD
Author: C.S. Arridge
Author: J.A. Slavin
Author: S.E. Milan
Author: L. Lamy
Author: M.K. Dougherty
Author: A.J. Coates

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