Stabilization of Electron Streams in Type III Solar Radio Bursts

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UMBC Goddard Planetary Heliophysics Institute (GPHI)

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https://orcid.org/0000-0002-5317-988X

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1974-05

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journal articles
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Papadopoulos, Konstantinos, Melvyn L. Goldstein, and Robert A. Smith. “Stabilization of Electron Streams in Type III Solar Radio Bursts.” The Astrophysical Journal 190 (May 1, 1974): 175–86. https://doi.org/10.1086/152862.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

We show that the electron streams that give rise to type III solar radio bursts are stable and will not be decelerated while propagating out of the solar corona. The stabilization mechanism depends on the parametric oscillating two-stream instability. Radiation is produced near the fundamental and second harmonic of the local electron plasma frequency. Estimates of the emission at the second harmonic indicate that the wave spectra created by the oscillating two-stream instability can account for the observed intensities of type III bursts. Subject headings: corona, solar - plasmas - radio radiation, solar