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Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft
Sergeev, V. Semenov, V. Kubyshkina, M. Ivanova, V. Baumjohann, W. Nakamura, R. Penz, T. Runov, A. Zhang, T. L. Glassmeier, K. H. Angelopoulos, V. Frey, H. Sauvaud, J. A. Daly, P. Cao, J. B. Singer, H. Lucek, E.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationGeophysical Research Letters
2007
Volume34Issue:2Pages:L02103
ISSN0094-8276
Language英语
KeywordSolar-wind Control Magnetic Reconnection Current Disruption Substorm Onset Magnetotail Dynamics Location Event
AbstractWe report strong repeated magnetic reconnection pulses that occurred deep inside closed plasma sheet flux tubes at r <= 14Re. They have been observed with a fortuitous spacecraft constellation during three consecutive turbulent magnetic dipolarizations, accompanied by localized auroral brightenings near the equatorward edge of a wide auroral oval. The reconnection separatrix was mapped to similar to 64 degrees CGLat in the ionosphere, where a very energetic and narrow energy-dispersed ion injection with unusually steep dispersion slope was observed. Reconstruction of the reconnection rate from magnetic waveforms at Cluster provided a reconnection pulse duration (similar to 1 min) and peak strength (E-R similar to 8 mV/m) consistent with direct observations in the reconnection outflow region. The magnetic activity was rather weak, although the concurrent solar wind flow pressure was above the norm. We suggest that near-Earth reconnection events may be a phenomenon more frequent than generally thought. We also confirm that reconnection and the growth of strong turbulence in the near tail are strongly coupled together in near-Earth reconnection events.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1059
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Sergeev, V. Semenov, V. Kubyshkina, M. Ivanova, V. Baumjohann, W. Nakamura, R. Penz, T. Runov, A. Zhang, T. L. Glassmeier, K. H. Angelopoulos, V. Frey, H. Sauvaud, J. A. Daly, P. Cao, J. B. Singer, H. Lucek, E.,北京8701信箱. Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft[J]. Geophysical Research Letters,2007,34(2):L02103.
APA Sergeev, V. Semenov, V. Kubyshkina, M. Ivanova, V. Baumjohann, W. Nakamura, R. Penz, T. Runov, A. Zhang, T. L. Glassmeier, K. H. Angelopoulos, V. Frey, H. Sauvaud, J. A. Daly, P. Cao, J. B. Singer, H. Lucek, E.,&北京8701信箱.(2007).Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft.Geophysical Research Letters,34(2),L02103.
MLA Sergeev, V. Semenov, V. Kubyshkina, M. Ivanova, V. Baumjohann, W. Nakamura, R. Penz, T. Runov, A. Zhang, T. L. Glassmeier, K. H. Angelopoulos, V. Frey, H. Sauvaud, J. A. Daly, P. Cao, J. B. Singer, H. Lucek, E.,et al."Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft".Geophysical Research Letters 34.2(2007):L02103.
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