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| Titel |
Low frequency wave sources in the outer magnetosphere, magnetosheath, and near Earth solar wind |
| VerfasserIn |
O. D. Constantinescu, K.-H. Glassmeier, P. M. E. Décréau, M. Franz, K.-H. Fornacon |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 25, no. 10 ; Nr. 25, no. 10 (2007-11-06), S.2217-2228 |
| Datensatznummer |
250015936
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| Publikation (Nr.) |
 copernicus.org/angeo-25-2217-2007.pdf |
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| Zusammenfassung |
| The interaction of the solar wind with the Earth magnetosphere generates a
broad variety of plasma waves through different mechanisms. The four Cluster
spacecraft allow one to determine the regions where these waves are generated
and their propagation directions. One of the tools which takes full
advantage of the multi-point capabilities of the Cluster mission is the wave
telescope technique which provides the wave vector using a plane wave
representation. In order to determine the distance to the wave sources, the
source locator – a generalization of the wave telescope to spherical waves
– has been recently developed. We are applying the source locator to
magnetic field data from a typical traversal of Cluster from the cusp region
and the outer magnetosphere into the magnetosheath and the near Earth solar
wind. We find a high concentration of low frequency wave sources in the
electron foreshock and in the cusp region. To a lower extent, low frequency
wave sources are also found in other magnetospheric regions. |
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