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Interaction of the solar wind and stream particles, results from the Cassini dust detector

Interaction of the solar wind and stream particles, results from the Cassini dust detector
Interaction of the solar wind and stream particles, results from the Cassini dust detector

The stream particles are nanometer-size dust particles ejected from the jovian and the saturnian systems with velocities greater than 100kms -1. Due to their small size, stream particles are more sensitive to the electromagnetic force than to gravity. It has been shown by the simulations that the stream - particle dynamics in interplanetary space should be dominated by the interplanetary magnetic field (IMF) [15]. Based on the measurements by the dust detector on board the Cassini spacecraft, we found that the detection patterns of the stream particles are well correlated with the IMF structures. As the spacecraft crosses the compression regions of the Co - rotation Interaction Regions (CIRs), not only the directionality of the impacts changes with the field direction, but also the impact signal and rate vary with an increase of field strength. By understanding the interaction of stream particles and the solar wind, the data provide important insight to the formation environments of the stream particles and is an unique opportunity to study the dust-moon-magnetosphere system of Jupiter and Saturn.

Magnetic fields, Saturn, Solar wind
1551-7616
510-513
Hsu, Hsiang Wen
c64ba3e4-d55b-4871-98da-94a38dc480d6
Kempf, Sascha
101173f0-b948-4ae5-b3fd-d089dd51f0c9
Postberg, Frank
e7618ffc-2dd2-4b77-8933-7bb081095849
Srama, Ralf
17057dd2-6ab6-4fac-8c92-efa3d70e030d
Jackman, Caitriona M.
9bc3456c-b254-48f1-ade0-912c5b8b4529
Moragas-Klostermeyer, Georg
aec89adf-df2e-451b-bef5-15d52562b5f4
Helfert, Stefan
4efcb8bb-3a22-42f1-9376-6dd58f59b412
Grün, Eberhard
e0b591e6-3120-4502-a197-b266a84658ff
Hsu, Hsiang Wen
c64ba3e4-d55b-4871-98da-94a38dc480d6
Kempf, Sascha
101173f0-b948-4ae5-b3fd-d089dd51f0c9
Postberg, Frank
e7618ffc-2dd2-4b77-8933-7bb081095849
Srama, Ralf
17057dd2-6ab6-4fac-8c92-efa3d70e030d
Jackman, Caitriona M.
9bc3456c-b254-48f1-ade0-912c5b8b4529
Moragas-Klostermeyer, Georg
aec89adf-df2e-451b-bef5-15d52562b5f4
Helfert, Stefan
4efcb8bb-3a22-42f1-9376-6dd58f59b412
Grün, Eberhard
e0b591e6-3120-4502-a197-b266a84658ff

Hsu, Hsiang Wen, Kempf, Sascha, Postberg, Frank, Srama, Ralf, Jackman, Caitriona M., Moragas-Klostermeyer, Georg, Helfert, Stefan and Grün, Eberhard (2010) Interaction of the solar wind and stream particles, results from the Cassini dust detector. AIP Conference Proceedings, 1216 (1), 510-513. (doi:10.1063/1.3395914).

Record type: Article

Abstract

The stream particles are nanometer-size dust particles ejected from the jovian and the saturnian systems with velocities greater than 100kms -1. Due to their small size, stream particles are more sensitive to the electromagnetic force than to gravity. It has been shown by the simulations that the stream - particle dynamics in interplanetary space should be dominated by the interplanetary magnetic field (IMF) [15]. Based on the measurements by the dust detector on board the Cassini spacecraft, we found that the detection patterns of the stream particles are well correlated with the IMF structures. As the spacecraft crosses the compression regions of the Co - rotation Interaction Regions (CIRs), not only the directionality of the impacts changes with the field direction, but also the impact signal and rate vary with an increase of field strength. By understanding the interaction of stream particles and the solar wind, the data provide important insight to the formation environments of the stream particles and is an unique opportunity to study the dust-moon-magnetosphere system of Jupiter and Saturn.

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More information

Published date: 14 May 2010
Venue - Dates: 12th International Solar Wind Conference, , Saint-Malo, France, 2009-06-20 - 2009-06-25
Keywords: Magnetic fields, Saturn, Solar wind

Identifiers

Local EPrints ID: 437322
URI: http://eprints.soton.ac.uk/id/eprint/437322
ISSN: 1551-7616
PURE UUID: ee81ced7-4efc-48db-9feb-d7b50bade67d
ORCID for Caitriona M. Jackman: ORCID iD orcid.org/0000-0003-0635-7361

Catalogue record

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

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Contributors

Author: Hsiang Wen Hsu
Author: Sascha Kempf
Author: Frank Postberg
Author: Ralf Srama
Author: Georg Moragas-Klostermeyer
Author: Stefan Helfert
Author: Eberhard Grün

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