The Angular Size of Short-Lived Solar Radio Disturbances.

A wide-band two-element adding interferometer which accepts simultaneously the radiation in the range 105-140 Mc/s was used to observe short-lived solar disturbances. The angular size of type I bursts was found to be less than 1.6 minutes of arc. The average angular size of tvpe III bursts in three clusters was 3.2 minutes, and for four other clusters an average lower limit of 3.3 minutes was obtained. The theory of these measurements is explained.