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| Titel |
Structure of the near-Earth plasma sheet during tailward flows |
| VerfasserIn |
A. Runov, I. Voronkov, Y. Asano, W. Baumjohann, M. Fujimoto, R. Nakamura, T. Takada, M. Volwerk, Z. Vörös, M. Meurant, A. Fazakerley, H. Rème, A. Balogh |
| 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 ; 26, no. 3 ; Nr. 26, no. 3 (2008-03-26), S.709-724 |
| Datensatznummer |
250016055
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| Publikation (Nr.) |
 copernicus.org/angeo-26-709-2008.pdf |
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| Zusammenfassung |
| A detailed analysis of successive tailward flow bursts in the near-Earth
magnetotail (X~−19 RE) plasma sheet is performed on the basis of
in-situ multi-point observations by the Cluster spacecraft on 15 September
2001. The tailward flows were detected during a northward IMF interval, 2.5 h
after a substorm expansion. Each flow burst (Vx<300 km/s) was
associated with local auroral activation. Enhancements of the parallel and
anti-parallel ~1 keV electron flux were detected during the flows. The
spacecraft configuration enables to monitor the neutral sheet (Bx≈0)
and the level of Bx≈10–15 nT simultaneously, giving a
possibility to distinguish between closed plasmoid-like structures and open
NFTE-like surges. The data analysis shows NFTE-like structures and localized
current filaments embedded into the tailward plasma flow. 3-D shapes of the
structures were reconstructed using the four-point magnetic filed
measurements and the particle data. |
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