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We present Integral Field Spectroscopic (IFS) observations of the nearby($z\sim0.03$) dual Active Galactic Nuclei (AGN) Mrk 739, whose projectednuclear separation is $\sim$3.4~kpc, obtained with the Multi Unit SpectroscopicExplorer (MUSE) at the Very Large Telescope (VLT). We find that the galaxy hasan extended AGN-ionized emission-line region extending up to $\sim 20$ kpc awayfrom the nuclei, while star-forming regions are more centrally concentratedwithin 2 - 3 kpc. We model the kinematics of the ionized gas surrounding theEast nucleus using a circular disk profile, resulting in a peak velocity of$237^{+26}_{-28}$ km s$^{-1}$ at a distance of $\sim 1.2$ kpc. The encloseddynamical mass within 1.2 kpc is $\log M(M_{\odot})=10.20\pm0.06$, $\sim$1,000times larger than the estimated supermassive black hole (SMBH) mass of Mrk739E. The morphology and dynamics of the system are consistent with an earlystage of the collision, where the foreground galaxy (Mrk 739W) is a youngstar-forming galaxy in an ongoing first passage with its background companion(Mrk 739E). Since the SMBH in Mrk 739W does not show evidence of being rapidlyaccreting, we claim that the northern spiral arms of Mrk 739W are ionized bythe nuclear activity of Mrk 739E.

The Complex Gaseous and Stellar environments of the nearby dual AGN Mrk 739