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Titel |
Plasmoid formation for multiple onset substorms: observations of the Japanese Lunar Mission "Kaguya" |
VerfasserIn |
T. Nagai, H. Tsunakawa, H. Shibuya, F. Takahashi, H. Shimizu, M. Matsushima, M. N. Nishino, Y. Yokota, K. Asamura, T. Tanaka, Y. Saito, O. Amm |
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 ; 27, no. 1 ; Nr. 27, no. 1 (2009-01-06), S.59-64 |
Datensatznummer |
250016355
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Publikation (Nr.) |
copernicus.org/angeo-27-59-2009.pdf |
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Zusammenfassung |
The Japanese Lunar Mission "Kaguya" carried out its first magnetic field
and plasma measurements in the Earth's magnetotail on 22 December 2007.
Fortuitously, three well-defined multiple onset substoms took place. Kaguya
was located in the premidnight magnetotail at radial distances of 56 RE and
observed plasmoids and/or traveling compression regions (TCRs). Although the
present study is based on limited data sets, important issues on multiple
onset substorms can be examined. Each onset in a series of onsets releases a
plasmoid, and magnetic reconnection likely proceeds to tail lobe field lines
for each onset. Since the duration of each plasmoid is less than 5 min,
these observations imply that magnetic reconnection for each onset can
develop fully to the tail lobe field lines and be quenched within this
timescale. |
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