Radio sources not selected to reside in rich cluster environments are known to be hosted by elliptical galaxies (e.g. Heckman et al., 1986). Host galaxies in rich clusters are more homogeneous in nature and show a lower frequency of merger activity (Ledlow and Owen, 1995). However, recently many examples of powerful radio sources have been found where the host galaxy shows appreciable deviation from being an elliptical. One important distinguishing feature between ellipticals and non-ellipticals is the presence of a disk. In this chapter we study the morphology of the radio galaxies as well as the control galaxies with prominent disks.
We present data on
five radio galaxies from our sample with prominent disks. We present the
images and obtain bulge and disk scale lengths ( 
and 
)
as well as the relative strengths of the two components (D/B)
using the profile fitting technique described in
Chapter 
. We also introduce in this chapter
the morphological gradient filter which is especially useful in
locating disks in galaxies.