The GOES M8.2 flare on 10 April 2002 at ~ 1230 UT was observed at X-ray wavelengths by RHESSI and at metric/decimetric wavelengths by the Nançay Radioheliograph (NRH). We analyse the time evolutions of the X-ray images in different energy bands observed by RHESSI and of the time evolution of the radio emission sites at 5 frequencies in the 150-450 MHz range observed by the NRH. We shall investigate whether the evolution in space and time of X-ray and radio sources are related to any spectral evolution of the energetic particles. We shall also investigate the magnetic structures at different spatial scales in which accelerated electrons propagate from the flare region as well as the existence of coronal acceleration regions remote from the flare site.
Participants: Nicole Vilmer, Gérard Trottet, Sam Krucker , R. P. Lin