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Evolutional Features of Solar Microwave Type IV Bursts

Published online by Cambridge University Press:  25 April 2016

K. Kai
K. Kai*
Affiliation:
Tokyo Astronomical Observatory, University of Tokyo
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Extract

Large outbursts from the Sun which are widely extended over centimetre and decimetre ranges and show smooth time variations in intensity have been called microwave type IV bursts (μ-IV). Those bursts generally consist of more than two successive components, the spectra of which move progressively towards the lower frequencies. Furthermore there is a tendency for the decay times, which are defined as the times occupied by the decreasing parts of the bursts, to become successively longer. It seems worth while to make a quantitative study of the time variation of the decay times and flux densities of μ-IV burst spectra and to infer how the physical conditions in the source change with time.

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Contributions
Information
Publications of the Astronomical Society of Australia , Volume 1 , Issue 2 , November 1967 , pp. 49 - 51
Copyright
Copyright © Astronomical Society of Australia 1967

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References

1 Wild, J. P., J. Phys. Soc. Japan, 17, Suppl. A-II, 249 (1962).Google Scholar
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