Recurrent mass ejection associated with flare behind the limb on 1978 December 20

Abstract

An interesting solar flare occured on 1978 December 20 behind the north-west limb, in the McMath active region no. 15700, as inferred from the observed associated energtic mass ejections, strong x-rays, decimetric and metric type II radio bursts. In this paper a detailed study of the spray and surge activities associated with this flare is presented.