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On the Fundamental and Harmonic Components of Low-Frequency Type III Solar Radio Bursts

Published online by Cambridge University Press:  25 April 2016

S. Suzuki  and
K.V. Sheridan
S. Suzuki
Affiliation:
Division of Radiophysics, CSIRO, Sydney
K.V. Sheridan
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Extract

Ground-based observations of Type III bursts made with spectrographs and spectro-polarimeters, at frequencies above the ionospheric cut-off, reveal that most bursts (excluding storm Type IIIs) have fundamental (F) and harmonic (H) structure (Wild et al. 1959; Dulk and Suzuki 1980). An example of F-H bursts is given by Sheridan (1978). Such bursts are produced by streams of electrons travelling along open magnetic field lines and exciting plasma oscillations which are converted to electro-magnetic waves at both the F and H frequencies of the local plasma frequency in the corona.

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Contributions
Information
Publications of the Astronomical Society of Australia , Volume 4 , Issue 4 , 1982 , pp. 382 - 386
Copyright
Copyright © Astronomical Society of Australia 1982

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