Ejection of chromospheric material associated with injection of electrons in the solar corona

Observations of a type III radio event and of concurrent H absorbing features are related. They were obtained with the Nançay Radioheliograph and the Multichannel Subtractive Double Pass spectrograph operating in H at Meudon. We are looking for the signature at chromosphere levels of the acceleration of the elctron beams triggering the type III bursts. Some promising results are pointed out: the relationship between velocities in H and the occurrence of the type III bursts, the shape of H line which reveals turbulent motions, the presence of parasitic magnetic polarity and the probable existence of a shock wave. A schematic scenario of the phenomenon is proposed, taking into account the observational constraints.