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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 opticalintegral field spectroscopy with the Gemini North Telescope, we present fluxdistributions, line-ratio maps, peak velocities and velocity dispersion maps aswell as channel maps with a spatial resolution of $\approx 955$ pc. We observehigh blueshifts of up to $\sim -650$ km s$^{-1}$, in a region $\sim 1''$ southof the nucleus (the southern knot, SK), which also presents high velocitydispersions ($\sim 250$ km s$^{-1}$), which we attribute to an outflow. Apossible redshifted counterpart is observed north from the nucleus (thenorthern knot, NK). We propose that these regions correspond to a bipolaroutflow 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 valuesare higher than usually observed in nearby active galaxies with the samebolometric luminosities and could imply a significant impact of the outflows inthe evolution of the host galaxy. The excitation is higher in the NK (thatcorrelates with extended X-ray emission, indicating the presence of hotter gas)than in the SK, supporting a scenario in which an obscuring dust lane isblocking part of the AGN radiation to reach the southern region of the galaxy.

Powerful ionized gas outflows in the interacting radio galaxy 4C +29.30