Abstract
The spectral indices of microwave and hard X-ray emissions of a solar flare are found to correlate. Their observed values are in agreement with the expected relation from synchrotron and bremsstrahlung theory. These results are considered as strong evidence for the synchrotron mechanism in the microwave flare, contrary to recent alternative suggestions.
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Benz, A.O. Synchrotron or plasma emission in solar microwave flares?. Sol Phys 94, 161–163 (1984). https://doi.org/10.1007/BF00154817
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DOI: https://doi.org/10.1007/BF00154817