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Relative Positions of Fundamental and Second Harmonic Type III Bursts

Published online by Cambridge University Press:  25 April 2016

R. T. Stewart
R. T. Stewart*
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Extract

Observations of the relative positions of fundamental and second harmonic bursts can be used to study refraction and scattering effects in the corona. Smerd, Wild and Sheridan have pointed out that the observed positions of type II bursts can be interpreted as favouring the backward emission of the second harmonic in a smooth corona. In this case the harmonic is seen after reflection from near the fundamental plasma level. Several other examples of type II and type III bursts have been reported which show this effect. We wish to present further evidence from a recent study of a large number of type III bursts observed with the 80 MHz heliograph and 158 MHz interferometer.

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Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 2 , March 1972 , pp. 100 - 101
Copyright
Copyright © Astronomical Society of Australia 1972

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References

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