Two stage electron acceleration at Earth’s bow shock

Martin Lindberg, KTH Royal Institute of Technology, Stockholm, Sweden, Andris Vaivads, School of Electrical Engineering and Computer Science, Royal Institute of Technology, Department of Space and Plasma Physics, Stockholm, Sweden, Savvas Raptis, KTH Royal Institute of Technology, Division of Space and Plasma Physics, Stockholm, Sweden and Tomas Karlsson, Royal Institute of Technology, Stockholm, Sweden