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Relative Times of Arrival of Bursts of Solar Noise on Different Radio Frequencies


It is becoming recognized that on metre wave, lengths solar noise from the disturbed sun is characterized by the occurrence of sudden large increases in intensity of a duration of several seconds or minutes. Bowen1, of this Laboratory, has reported that these increases of intensity are not necessarily coincident in time or shape when observed on different radio frequencies. The present communication describes observations, chiefly during July and August 1946, of the relative times of arrival of such bursts on 200, 75 and 60 Mc./s., with a few observations on 30 Mc./s. For each frequency a separate receiving system, actuating its own recording meter, was used. Loud-speakers were also connected giving aural confirmation of the recorded data.

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PAYNE-SCOTT, R., YABSLEY, D. & BOLTON, J. Relative Times of Arrival of Bursts of Solar Noise on Different Radio Frequencies. Nature 160, 256–257 (1947).

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