We investigate the ionized gas excitation and kinematics in the inner 4.3 \times 6.2 kpc ^ { 2 } of the merger radio galaxy 4C +29.30 .
Using optical integral field spectroscopy with the Gemini North Telescope , we present flux distributions , line-ratio maps , peak velocities and velocity dispersion maps as well as channel maps with a spatial resolution of \approx 955 pc .
We observe high blueshifts of up to \sim - 650 km s ^ { -1 } in a region \sim 1 ^ { \prime \prime } south of the nucleus ( the southern knot – SK ) , which also presents high velocity dispersions ( \sim 250 km s ^ { -1 } ) , which we attribute to an outflow .
A possible redshifted counterpart is observed north from the nucleus ( the northern knot – NK ) .
We propose that these regions correspond to a bipolar outflow possibly due to the interaction of the radio jet with the ambient gas .
We estimate a total ionized gas mass outflow rate of \dot { M } _ { out } = 25.4 \substack { +11.5 \ -7.5 } M _ { \odot } yr ^ { -1 } with a kinetic power of \dot { E } = 8.1 \substack { +10.7 \ -4.0 } \times 10 ^ { 42 } erg s ^ { -1 } , which represents 5.8 \substack { +7.6 \ -2.9 } \% of the AGN bolometric luminosity .
These values are higher than usually observed in nearby active galaxies with the same bolometric luminosities and could imply a significant impact of the outflows in the evolution of the host galaxy .
The excitation is higher in the NK – that correlates with extended X-ray emission , indicating the presence of hotter gas – than in the SK , supporting a scenario in which an obscuring dust lane is blocking part of the AGN radiation to reach the southern region of the galaxy .