VLA resolves unexpected radio structures in the Perseus cluster of
  galaxies
  We present new deep, high-resolution, 1.5 GHz observations of the
prototypical nearby Perseus galaxy cluster from the Karl G. Jansky Very Large
Array. We isolate for the first time the complete tail of radio emission of the
bent-jet radio galaxy NGC 1272, which had been previously mistaken to be part
of the radio mini-halo. The possibility that diffuse radio galaxy emission
contributes to mini-halo emission may be a general phenomenon in relaxed
cool-core clusters, and should be explored. The collimated jets of NGC 1272
initially bend to the west, and then transition eastward into faint, 60
kpc-long extensions with eddy-like structures and filaments. We suggest
interpretations for these structures that involve bulk motions of intracluster
gas, the galaxy's orbit in the cluster including projection effects, and the
passage of the galaxy through a sloshing cold front. Instabilities and
turbulence created at the surface of this cold front and in the turbulent wake
of the infalling host galaxy most likely play a role in the formation of the
observed structures. We also discover a series of faint rings, south-east of
NGC 1272, which are a type of structure that has never been seen before in
galaxy clusters.
