Identification of radio sources in clusters of galaxies

We have carried out a detailed identification of radio sources from the FIR ST catalog lying within the Abell radii of 26 rich galactic clusters with o ptical objects in the APM and DSS surveys. Of the 326 radio sources in the cluster fields, 99 are identified, 40 have probable identifications, and 18 7 are unidentified. Among these last sources, 20 are definitely located in the clusters and 34 are cluster members with high probability. Thus, approx imate to 30-40% of the FIRST radio sources could be identified using APM an d DSS data, and, on the average, there were two sources in each cluster.