Frequency Splitting of Solar Radio Bursts

Abstract

Solar radio bursts showing frequency splitting have been observed regularly below 60 MHz. The bursts have a duration of 1-2 sec and a frequency interval between their elements of 0·1-1·0 MHz. Their wave frequency generally decreases with time at about O· 1 MHz/sec. The bursts may occur either in isolation, in chains associated with type III bursts, or in large numbers during noise storms. Triple splitting is observed in about 10% of the bursts. The properties of the bursts are not inconsistent with those expected from magnetic splitting of the radiation.