Relative Positions of Fundamental and Second Harmonic Type III Bursts
- 1 July 1971
- journal article
- other
- Published by Cambridge University Press (CUP) in Publications of the Astronomical Society of Australia
- Vol. 2 (2) , 100-101
- https://doi.org/10.1017/s1323358000013059
Abstract
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.Keywords
This publication has 3 references indexed in Scilit:
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- On the Relative Position and Origin of Harmonics in the Spectra of Solar Radio Bursts of Spectral Types II And IIIAustralian Journal of Physics, 1962
- The Solar Corona in Active Regions and the Thermal Origin of the Slowly Varying Component of Solar Radio Radiation.The Astrophysical Journal, 1961