High-resolution VLA low radio frequency observations of the Perseus
  cluster: radio lobes, mini-halo and bent-jet radio galaxies
  We present the first high-resolution 230-470 MHz map of the Perseus cluster
obtained with the Karl G. Jansky Very Large Array. The high dynamic range and
resolution achieved has allowed the identification of previously-unknown
structures in this nearby galaxy cluster. New hints of sub-structures appear in
the inner radio lobes of the brightest cluster galaxy NGC 1275. The spurs of
radio emission extending into the outer X-ray cavities, inflated by past
nuclear outbursts, are seen for the first time at these frequencies, consistent
with spectral aging. Beyond NGC 1275, we also analyze complex radio sources
harbored in the cluster. Two new distinct, narrowly-collimated jets are visible
in IC 310, consistent with a highly-projected narrow-angle tail radio galaxy
infalling into the cluster. We show how this is in agreement with its
blazar-like behavior, implying that blazars and bent-jet radio galaxies are not
mutually exclusive. We report the presence of filamentary structures across the
entire tail of NGC 1265, including two new pairs of long filaments in the
faintest bent extension of the tail. Such filaments have been seen in other
cluster radio sources such as relics and radio lobes, indicating that there may
be a fundamental connection between all these radio structures. We resolve the
very narrow and straight tail of CR 15 without indication of double jets, so
that the interpretation of such head-tail sources is yet unclear. Finally, we
note that only the brightest western parts of the mini-halo remain, near NGC
1272 and its bent double jets.
