Is there a Blazar Nested in the Core of the Radio Galaxy 3C 411?
  Previous spectral energy distribution modeling based on XMM-Newton X-ray
observation of the classical double-lobed radio galaxy 3C 411 left the
possibility open for the presence of a blazar-like core. We investigated this
scenario by characterizing the radio brightness distribution in the inner
~10-pc region of the source. We applied the very long baseline interferometry
(VLBI) technique at four different frequencies from 1.7 to 7.6 GHz. We analyzed
archival data from the Very Long Baseline Array (VLBA) taken in 2014, and data
from the European VLBI Network (EVN) obtained in 2017. The VLBI images reveal
pc-scale extended structure in the core of 3C 411 that can be modeled with
multiple jet components. The measured core brightness temperatures indicate no
Doppler enhancement that would be expected from a blazar jet pointing close to
the line of sight. While there is no blazar-type core in 3C 411, we found
indication of flux density variability. The overall morphology of the source is
consistent with a straight jet with ~50{\deg} inclination angle at all scales
from pc to kpc.
