Description
Radio observations were used to detect the "active" galaxy population within rich clusters of galaxies in a nonbiased manner that is not plagued by dust extinction or the K-correction. We present wide-field radio, optical (imaging and spectroscopy), and ROSAT All-Sky Survey (RASS, Cat. <IX/10>) X-ray data for a sample of 30 very rich Abell (R>=2) cluster with z<=0.25. The VLA radio data samples the ultrafaint radio (L(1.4GHz)>=2x10^22^W/Hz) galaxy population within these extremely rich clusters for galaxies with RMAG<=-21. This is the largest sample of low-luminosity 20 cm radio galaxies within rich Abell clusters collected to date.
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