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Observations of magnetic flux ropes during magnetic reconnection in the Earth's magnetotail

机译:地球磁尾磁重连接过程中的磁通绳观测

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摘要

We present an investigation of magnetic flux ropes observed by the four Cluster spacecraft during periods of magnetic reconnection in the Earth's magnetotail. Using a list of 21 Cluster encounters with the reconnection process in the period 2001-2006 identified in Borg et al. (2012), we present the distribution and characteristics of the flux ropes. We find 27 flux ropes embedded in the reconnection outflows of only 11 of the 21 reconnection encounters. Reconnection processes associated with no flux rope observations were not distinguishable from those where flux ropes were observed. Only 7 of the 27 flux ropes show evidence of enhanced energetic electron flux above 50 keV, and there was no clear signature of the flux rope in the thermal particle measurements. We found no clear correlation between the flux rope core field and the prevailing IMF B_y direction.
机译:我们提出了对四个星团航天器在地球磁尾磁重新连接期间观察到的磁通量绳索的研究。使用在Borg等人(2001年)中确定的2001年至2006年期间重新连接过程的21个集群遭遇列表。 (2012年),我们介绍了助焊剂钢丝绳的分布和特征。我们发现,在21次重连遇到中只有11条重连流出中嵌入了27条通量绳。没有观察到通量绳的重新连接过程与观察到通量绳的过程没有区别。 27条通量绳中只有7条显示出在50 keV以上能量能电子通量得到增强的证据,在热粒子测量中通量绳没有明显的特征。我们发现磁通量绳芯场与主要的IMF B_y方向之间没有明确的相关性。

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