Jena 2013 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 9: Sonne und Heliosphäre II

EP 9.4: Vortrag

Freitag, 1. März 2013, 10:15–10:30, HS 9

Shock accelerated electrons in the solar corona — •Mann Gottfried, Braune Stephan, and Aurass Henry — Leibniz-Institut für Astrophysik Potsdam, Potsdam, Germany

In the solar corona, shocks are generated either by flares or by coronal mass ejections. They appear as type II bursts in dynamic spectra of the solar radio radiation. The energetic electrons are regarded to be generated by shock drift acceleration resulting in the production of beams of energetic electrons in the upstream region. These electrons excite Landmuir waves, which convert into escaping radio waves as observed as type II radio bursts. The aim of this talk is to discuss, what can we learn from both observations and theory for a better understanding of shock acceleration of electrons in the solar corona. In result, a consistent picture of type II radio bursts and the associated shocks are obtained by this study.