We are continuing our study of electron acceleration at a reconnection outflow termination shock (TS). We have identified the first event where we can observe the radio signature of the TS (which resembles a non-drifting type II burst) - the X17 flare of 2003 October 28. HXR and gamma-ray data from RHESSI as well as from INTEGRAL show a very good temporal correlation of the nonthermal emission with the radio signature of the TS. We are using data from RHESSI and INTEGRAL in order to determine the spectrum of the accelerated electrons, which we will then compare with spectra that are calculated by invoking relativistic shock-drift acceleration at the TS.
Participants: Henry Aurass, Gottfried Mann, Alexander Warmuth