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Plasma Oscillations and the Emissivity of Type III Radio Bursts

Published online by Cambridge University Press:  14 August 2015

D. A. Gurnett ,
R. R. Anderson  and
R. L. Tokar
D. A. Gurnett
Affiliation:
Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242
R. R. Anderson
Affiliation:
Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242
R. L. Tokar
Affiliation:
Department of Physics and Astronomy, The University of Iowa, Iowa City, Iowa 52242

Abstract

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Plasma wave electric field measurements with the solar orbiting Helios spacecraft have shown that intense electron plasma oscillations occur in association with type III solar radio bursts, thereby confirming a well known mechanism for generating solar radio emissions first proposed by Ginzburg and Zheleznyakov in 1958. In this paper we review the principal characteristics of these plasma oscillations and compare the observed plasma oscillation intensities with recent measurements of the emissivity of type III radio bursts. The observed emissivities are shown to be in good agreement with two current models for the conversion of electrostatic plasma oscillations to electromagnetic radiation.

Type
Session VI - Solar Bursts - Decimeter and Low Frequency Observations
Information
Symposium - International Astronomical Union , Volume 86: Radio Physics of the Sun , 1980 , pp. 369 - 379
Copyright
Copyright © Reidel 1980 

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