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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e-mail: GMann@aip.de
Address: Astrophysikalisches Institut
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Germany