Prevalence of radio jets associated with galactic outflows and feedback
  from quasars
  We present 1-7 GHz high-resolution radio imaging (VLA and e-MERLIN) and
spatially-resolved ionized gas kinematics for ten z<0.2 type~2 `obscured'
quasars (log [L(AGN)/(erg/s)]>~45) with moderate radio luminosities (log
[L(1.4GHz)/(W/Hz)]=23.3-24.4). These targets were selected to have known
ionized outflows based on broad [OIII] emission-line components (FWHM~800-1800
km/s). Although `radio-quiet' and not `radio AGN' by many traditional criteria,
we show that for nine of the targets, star formation likely accounts for <~10
per cent of the radio emission. We find that ~80-90 per cent of these nine
targets exhibit extended radio structures on 1-25 kpc scales. The quasars'
radio morphologies, spectral indices and position on the radio size-luminosity
relationship reveals that these sources are consistent with being low power
compact radio galaxies. Therefore, we favour radio jets as dominating the radio
emission in the majority of these quasars. The radio jets we observe are
associated with morphologically and kinematically distinct features in the
ionized gas, such as increased turbulence and outflowing bubbles, revealing
jet-gas interaction on galactic scales. Importantly, such conclusions could not
have been drawn from current low-resolution radio surveys such as FIRST. Our
observations support a scenario where compact radio jets, with modest radio
luminosities, are a crucial feedback mechanism for massive galaxies during a
quasar phase.
