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Field-Aligned Electrons in Polar Region Observed by Cluster on 30 September 2001

Shi, Jian-Kui; Cheng, Zheng-Wei; Zhang, Zi-Ying +1 more

The physical process in the Earth's polar region is very complex and still needs to be further studied. Using the data from Cluster satellite measurement, an analysis on field-aligned electrons in the mid-latitude cusp on 30 September 2001 has been performed. The satellite observed a down-flowing electron event in the low-latitude boundary and a s…

Anomalous Resistivity Associated with Secondary Islands in the Reconnection Region

Zhou, Meng; Deng, Xiao-Hua; Su, Wei +1 more

We calculate the anomalous resistivity (AR) due to electrostatic waves, including possibly the lower hybrid wave and electron beam mode, around the secondary islands in the reconnection region observed by the Cluster spacecraft. Our main findings are: AR is important on the reconnection separatrix layer but heavily suppressed at the central curren…