babylonpolice.com

PBC J2333.9-2343 is a giant radio galaxy at z = 0.047 with a bright central
core associated to a blazar nucleus. If the nuclear blazar jet is a new phase
of the jet activity, then the small orientation angle suggest a dramatic change
of the jet direction. We present observations obtained between September 2018
and January 2019 (cadence larger than three days) with Effeslberg, SMARTS-1.3m,
ZTF, ATLAS, Swift, and Fermi-LAT, and between April-July 2019 (daily cadence)
with SMARTS-1.3m and ATLAS. Large (>2x) flux increases are observed on
timescales shorter than a month, which are interpreted as flaring events. The
cross correlation between the SMARTS-1.3m monitoring in the NIR and optical
shows that these data do not show significant time lag within the measured
errors. A comparison of the optical variability properties between non-blazars
and blazars AGN shows that PBC J2333.9-2343 has properties more comparable to
the latter. The SED of the nucleus shows two peaks, that were fitted with a one
zone leptonic model. Our data and modelling shows that the high energy peak is
dominated by External Compton from the dusty torus with mild contribution from
Inverse Compton from the jet. The derived jet angle of 3 degrees is also
typical of a blazar. Therefore, we confirm the presence of a blazar-like core
in the center of this giant radio galaxy, likely a Flat Spectrum Radio Quasar
with peculiar properties.