Electron Acceleration at Coronal Shock Waves

Gottfried Mann

Abstract

In the solar corona shock waves are generated by flares and/or coronal mass ejection and manifest themselves in type II radio bursts. The nonthermal radio radiation of coronal shock waves reveals that they are able to accelerate electrons up to suprathermal velocities. The observational features of these radio bursts are briefly reviewed. Various theoretical models of electron acceleration at shock waves are discussed by comparing their results with the observations. Especially, a mechanism, which is able to produce high energetic electrons by coronal shock waves, is presented. It bases on the interaction of electrons with the strong magnetic field turbulence in the vicinity of quasi-parallel shock waves.
 

  Organization: Astrophysikalisches Institut Potsdam
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