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Radio Data on Clusters of Galaxies from the Culgoora Circular Array

Published online by Cambridge University Press:  25 April 2016

O. B. Slee  and
Betty C. Siegman
O. B. Slee
Affiliation:
Division of Radiophysics, CSIRO, Sydney
Betty C. Siegman
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Extract

The Culgoora circular array (CCA) is a 3-km-diameter ring of 96 reflectors operating at 80, 160 and 327 MHz. It has an effective collecting area of ~ 6000 m2 and achieves angular resolutions (full half-power beamwidths) of 3’.70, 1 ‘.85 and 0’.92 at the three operating frequencies. During the interval 1978-1981 we have used the CCA to make 80 and 160 MHz measurements of a comprehensive selection of radio sources which were detected during various complete surveys of clusters of galaxies (see Table 1). We have combined our low-frequency intensity measurements with other available higher-frequency flux data to compute accurate radio spectra. The 160 MHz contour maps for many of the cluster fields were used to find positions and angular sizes for the associated radio sources.

Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 5 , Issue 1 , 1983 , pp. 114 - 129
Copyright
Copyright © Astronomical Society of Australia 1983

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Slee and Siegman supplementary material

Supplementary Material

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Supplementary material: PDF

Slee and Siegman supplementary material

Supplementary Material

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