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The structure of the Cassiopeia A and Cygnus A radio sources measured at 127 Mc/s and 3000 Mc/s

Published online by Cambridge University Press:  14 August 2015

R. C. Jennison
R. C. Jennison*
Affiliation:
Jodrell Bank Experimental Station, University of Manchester, England

Extract

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The brightness distribution across the Cassiopeia A source in position angle 90 degrees consists of a primary region of emission 4.1 minutes of arc in width, with a much fainter extension offset from the main region of emission and having a brightness of only 10 per cent of that of the main component. Measurements were made up to the third maximum of the transform (2160 λ), and the position of the first zero was determined at 840 λ.

Type
Part III: Galactic and Extragalactic Radio Sources
Information
Symposium - International Astronomical Union , Volume 9: Paris Symposium on Radio Astronomy , 1959 , pp. 309 - 314
Copyright
Copyright © Stanford University Press 1959 

References

1. Jennison, R. C., and Das Gupta, M. K. Nature , 172, 996, 1953.CrossRefGoogle Scholar
2. Jennison, R. C., and Das Gupta, M. K. Phil. Mag. 1 (Ser. 8), 55, 1956.CrossRefGoogle Scholar
3. Jennison, R. C. M.N.R.A.S. 111, 1958.Google Scholar
4. Jennison, R. C. Radio Astronomy (I.A.U. Symposium No. 4, 1955). Cambridge, England, 1957, p. 159.Google Scholar