3C 180, HEG, 1″ = 3.37 kpc. The black circle in the first panel has a diameter of 3 times the seeing of the observations; the dashed line in the second panel marks the radio position angle. In the inner region the ionized gas is quite compact (up to ∼8.5 kpc from the nucleus), outside the central region (from ∼8.5 kpc to ∼15 kpc) the most distant gas is located in a larger area especially in the SE section, here the gas is dominated by high positive velocities that reach ∼2450 km s⁻¹. This represents the maximum velocity reached by the outflow in the whole sample and also by the 3C 79. In this area we observe a thin segment of gas characterized by negative velocities. The NW area is dominated by the blue component.