Abstract
THE observation of radio emission from the Comet Arend-Roland has been reported1 at 600 Mc./s. and2 at 27.6 Mc./s. The reported flux densities are of the order of 5 × 10−23 (private communication) and 5 × 10−22 W.m.−2 (c./s.)−1 respectively, or about 2 per cent and 3,000 per cent of the flux density of the quiet Sun. Observations3 at 400 Mc./s. failed to detect any emission, though the sensitivity was high enough to detect a flux density less than 10−24 W.m.−2 (c./s.)−1.
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References
Koeckelenbergh, A., Int. Astro. Union Circ. 1594 (1957).
Kraus, J. D., Int. Astro. Union Circ. 1596 (1957).
Seeger, Ch. L., Westerhout, G., and Conway, R. G., Int. Astro. Union Circ. 1599 (1957).
Hewish, A., Proc. Roy. Soc., A, 228, 238 (1955).
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WHITFIELD, G., HÖGBOM, J. Radio Observations of the Comet Arend-Roland. Nature 180, 602 (1957). https://doi.org/10.1038/180602a0
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DOI: https://doi.org/10.1038/180602a0
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