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29. The discrete source of radio waves at the galactic centre

Published online by Cambridge University Press:  14 August 2015

F. G. Smith ,
P. A. O'Brien  and
J. E. Baldwin
F. G. Smith
Affiliation:
Cavendish Laboratory, Cambridge, England
P. A. O'Brien
Affiliation:
Cavendish Laboratory, Cambridge, England
J. E. Baldwin
Affiliation:
Cavendish Laboratory, Cambridge, England

Extract

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The discrete source of radio emission in Sagittarius is among the most intense in the whole sky, but its situation in the belt of emission from ionized hydrogen and other sources associated with the galactic plane makes it difficult to observe. The observations described in this paper were made at frequencies of 38, 81·5, 210, and 500 Mc./s.; at these low frequencies it is particularly difficult to obtain sufficient aerial resolving power to distinguish the discrete source from the background. Interferometer aerials were therefore used, and at 38 and 210 Mc./s. spacings up to λ60 were used, sufficient to resolve the source completely. At 81·5 Mc./s. various sections of the large interferometer aerial were used.

Type
Part II: Point Sources: Individual Study and Physical Theory
Information
Symposium - International Astronomical Union , Volume 4: Radio Astronomy , 1957 , pp. 166 - 168
Copyright
Copyright © Cambridge University Press 1957 

References

References

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Reference

1. McGee, R. X., Slee, O. B. and Stanley, G. J. Aust. J. Phys. 8, 347 (no. 3), 1955.Google Scholar