  We present an analysis of Chandra observations of the galaxy clusters A2670
and A2107. Their cD galaxies have large peculiar velocities (>200km/s) and thus
the clusters appear to be undergoing mergers. In A2670, we find a comet-like
structure around one of the brightest galaxies. At the leading edge of the
structure, there is a cold front. The mass of the X-ray gas in the comet-like
structure suggests that the galaxy was in a small cluster or group, and its
intracluster medium (ICM) is being stripped by ram-pressure. The regions of
cool interstellar medium (ISM) of the cD galaxies in A2670 and A2107 are very
compact. This is similar to the brightest galaxies in the Coma cluster, which
is also a merging cluster. In each galaxy, the short cooling time of the ISM
requires a heating source; the compact nature of the ISM makes it unlikely that
the heating source is a central active galactic nucleus (AGN).
