A strong electron acceleration event is observed around the interplanetary shock on Feb. 21,1994 on the GEOTAIL satellite. Behavior of the energetic electrons is consistent with the standard Fermi shock acceleration theory, if we include a modification due to the expansion effect of the downstream plasma flow. As far as we know, there has been no observational report which clealy indicates stochastic Fermi shock acceleration mechanism working on electrons at 1AU. We report here details of the electron acceleration phenomenon and related topics.
惑星間空間衝撃波による電子フェルミ加速
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