Electron ``spike'' events and their association with type III bursts

A. Klassen, R. Gomez-Herrero

Institut fur Experimentelle und Angewandte Physik, Universitat Kiel, Germany

We have analyzed 20 impulsive near-relativistic (>0.25 MeV) solar electron bursts observed with the COSTEP/EPHIN instrument onboard the SOHO spacecraft. All events were associated with narrow CMEs and radio type III bursts and show anusual``spike'' time profiles with duration below 15 min. Because they show strong anisotropies, velocity dispersion and near ``scatterfree propagation'' from the Sun to the SOHO, we suggest that the observed electron spikes reflected the injection or acceleration profiles in the corona and that these unusual profiles are not due to interplanetary propagation.