Abstract
We compare the flux of fast solar electrons and the intensity of the type III radio emission generated by these particles at 1 AU. We find that there are two regimes in the generation of type III radiation: one where the radio intensity is linearly proportional to the electron flux, and the second regime, which occurs above a threshold electron flux, where the radio intensity is proportional to the ∼2.4 power of the electron flux. This threshold appears to reflect a transition to a different emission mechanism.
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Fitzenreiter, R.J., Evans, L.G. & Lin, R.P. Quantitative comparisons of type III radio burst intensity and fast electron flux at 1 AU. Sol Phys 46, 437–446 (1976). https://doi.org/10.1007/BF00149865
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DOI: https://doi.org/10.1007/BF00149865