Abstract
IN a recent communication, Basu and Castelli1 described observations at wave-lengths of 10 cm and 25 cm of the occultation of the radio source in Taurus, the Crab Nebula, by the solar corona in June 1962. The results were interpreted as indicating a progressive increase in the angular diameter of the source with decreasing angular distance from the Sun, due to scattering by irregularities of electron density in a non-uniform corona.
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Basu, S., and Castelli, J., Nature, 197, 885 (1963).
Hewish, A., Proc. Roy. Soc., A, 228, 238 (1955).
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Vitkevitch, V. V., Astro. J., U.S.S.R., 37, 32, 961 (1960).
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WYNDHAM, J., CLARK, B. Occupation of the Crab Nebula by the Solar Corona in June 1963. Nature 200, 766 (1963). https://doi.org/10.1038/200766a0
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DOI: https://doi.org/10.1038/200766a0
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