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Directivity of low frequency solar type III radio bursts

✍ Scribed by R. J. Fitzenreiter; J. Fainberg; R. B. Bundy

Publisher
Springer
Year
1976
Tongue
English
Weight
443 KB
Volume
46
Category
Article
ISSN
0038-0938

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✦ Synopsis

The occurrence rate of type III solar bursts in the frequency range 4.9 MHz to 30 kHz is analyzed as a function of burst intensity and burst arrival direction. We find that (a) the occurrence rate of bursts falls off with increasing flux, S, according to the power law S -1s, and (b) the distribution of burst arrival directions at each frequency shows a significantly larger number of bursts observed west of the Earth-Sun line than east of it. This western excess in occurrence rate appears to be correlated wi~h the direction of the average interplanetary magnetic field, and is interpreted as beaming of the observed burst radiation along the magnetic field direction.

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