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31. Apparent intensity variations of the radio source Hydra A

Published online by Cambridge University Press:  14 August 2015

J. G. Bolton
Affiliation:
Radiophysics Laboratory, Commonwealth Scientific and Industrial Research Organisation, Sydney, Australia
O. B. Slee
Affiliation:
Radiophysics Laboratory, Commonwealth Scientific and Industrial Research Organisation, Sydney, Australia

Extract

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During the course of a survey for radio sources using a sea interferometer changes in the apparent intensity of the source Hydra A were observed. The intensities on two consecutive days differed by more than 30 % although the intensities of sources appearing earlier and later on the same records showed no significant changes. The position of this source given by Mills (1952) [2] is r.a. 09h 15m 46s, dec. − 11° 55′ (epoch 1950) and its I.A.U. number 09S1A.

Type
Part II: Point Sources: Individual Study and Physical Theory
Copyright
Copyright © Cambridge University Press 1957 

References

1. Slee, O. B. Aust. J. Phys. 8, 487, 1955.Google Scholar
2. Mills, B. Y. Aust. J. Sci. Res. A , 5, 266, 1952.Google Scholar
3. Mills, B. Y., Little, A. G. and Sheridan, K. V. (in preparation). ‘A high resolution radio telescope for use at a wave-length of 3·5 metres.’ Google Scholar