Abstract
THE general radio emission, from the Galaxy has now been accounted for as the synchrotron radiation of high-energy electrons in a magnetic field. An unsatisfactory aspect of this explanation is the relation between the observed radio spectral index α, where radio flux is proportional to (wave-length)α, and the expected energy spectrum of the cosmic-ray electrons, the number density of which should also vary exponentially according to (energy)−(1+S). In these circumstances the indices are related by α = S/2.
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SMITH, F. Spectrum of Galactic Radio Emission. Nature 191, 1381 (1961). https://doi.org/10.1038/1911381a0
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DOI: https://doi.org/10.1038/1911381a0
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