Blue lobe galaxies in the cooling flow clusters Abell 1795 and Abell 2597

We present CCD color imagery for the centrally dominant galaxies in the clusters A1795 and A2597. These objects, which reside at the centers of large cluster cooling flows, have unusually blue central colors, spatially extended emission-line structures, and strong radio sources. Using difference images formed by modeling and subtracting the background galaxy from our U-band and Stromgren b-band images, we find prominent lobelike continuum structures in their central 10-20 kpc. In addition, we find absorption features which can be plausibly attributed to dust. Using U-I color maps, we show that the continuum lobes are very blue and occur on or near bright radio-source structures.