Conclusions

• Cluster central radio sources and X-ray-emitting ICM profoundly affect one another: the ICM confines and distorts radio lobes while the radio lobes blow bubbles in the ICM.

• Central radio sources are at least part of the solution to the problem with the standard cooling flow model (with additional contributions from, i.e., inhomogeneous abundances and conduction). Energy is released into the ICM and dispersed through buoyancy; strong shocks are not seen.

• Since distorted radio sources often attain their morphologies from interaction with the ICM, they can be used as tracers for distant clusters and groups of galaxies for studies of cosmology and galaxy evolution.