At the request of the conference attendees, we have compiled a classification
of extended radio sources in clusters. These range from scales of tens of
parsecs to over a megaparsec in scale, and include both sources associated with
AGN and sources thought to derive from the electron population in the ionized
ICM. We pay special attention to distinguishing between the types of AGN in the
cores of cooling flow clusters and between the multiple classes of objects
referred to over the years as ``radio relics.'' We suggest new names based on
physical arguments for some of these classes of objects where their commonly
used names are inappropriate or confusing.Comment: 5 pages, to appear in "The Riddle of Cooling Flows in Galaxies and
Clusters of Galaxies," held in Charlottesvile, VA, May 31 - June 4, 2003, ed.
T. H. Reiprich, J. C. Kempner, and N. Soker,
http://www.astro.virginia.edu/coolflow
