A radio study of Abell clusters

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Clusters, Microwave Emission, Radio Sources (Astronomy), Astronomical Catalogs, Radio Astronomy, Stellar Luminosity

Scientific paper

A search for radio sources close to 247 clusters of galaxies in the Abell catalogue has been carried out at the Molonglo Radio Observatory at a frequency of 408 MHz. A list of 116 sources near 89 clusters is given, identifications have been made and criteria for cluster membership have been established. A cluster luminosity function is derived and spectra have been obtained for sources in 25 clusters utilizing published surveys made at other frequencies. It is found that there is no correlation between the richness of a cluster and its inclusion of at least one radio source, but those clusters containing multiple sources are significantly richer than average.

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