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21-cm hydrogen-line absorption in the spectra of discrete sources

Published online by Cambridge University Press:  14 August 2015

C. A. Muller
C. A. Muller*
Affiliation:
Radio Observatory, Dwingeloo, The Netherlands

Extract

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This paper is a short survey of the results obtained with the Dwingeloo 25-meter radio telescope (beamwidth 0°.56) and the 21-cm receiver on hydrogen-line absorption effects in the spectra of a number of strong point sources. Earlier work on this subject has been done by Hagen, Lilley, and McClain [1], and by Davies and Williams [2]. Some preliminary results of the first part of the present investigation were already published [3].

Type
Part III: Galactic and Extragalactic Radio Sources
Information
Symposium - International Astronomical Union , Volume 9: Paris Symposium on Radio Astronomy , 1959 , pp. 360 - 365
Copyright
Copyright © Stanford University Press 1959 

References

1. Hagen, J. P., Lilley, A. E., and McClain, E. F. Radio Astronomy (I.A.U. Symposium No. 4, 1955). Cambridge, England, 1957, p. 80.CrossRefGoogle Scholar
2. Davies, R. D., and Williams, D. R. W. Radio Astronomy (I.A.U. Symposium No. 4), p. 71.Google Scholar
3. Muller, C. A. Ap. J. 125, 830, 1957.CrossRefGoogle Scholar
4. van de Hulst, H.C., Raimond, E., and van Woerden, H. B.A.N. 14, 1, 1957.Google Scholar
5. Minkowski, R. Paper 61.Google Scholar
6. Rougoor, G. W., and Oort, J. H. Paper 77.Google Scholar