The interaction between rising bubbles and cold fronts in cool core
  clusters
  We investigate whether the swirling cold front in the core of the Perseus
Cluster of galaxies has affected the outer buoyant bubbles that originated from
jets from the Active Galactic Nucleus in the central galaxy NGC1275. The inner
bubbles and the Outer Southern bubble lie along a North-South axis through the
nucleus, whereas the Outer Northern bubble appears rotated about 45 deg from
that axis. Detailed numerical simulations of the interaction indicates that the
Outer Northern bubble may have been pushed clockwise accounting for its current
location. Given the common occurrence of cold fronts in cool core clusters, we
raise the possibility that the lack of many clear outer bubbles in such
environments may be due to their disruption by cold fronts.
