Spatially Resolved Kinematics of Ionized Gas with CFHT's SITELLE in the Merging Luminous Infrared Galaxy: Mrk 266 - Host of Dual-AGN
Andreea Petric
IfA/CFHT/MSE



We present the first wide-field study of the spatially resolved ionized gas kinematics in the well studied, nearby dual-AGN host Markarian 266 (Mrk 266, NGC 5256). Mrk 266 is a gas-rich luminous infrared galaxy (LIRG: galaxy with L IR > 10^11 L Sun merger at z~0.03 that hosts Mrk 266 SW - a Seyfert, and Mrk 266 NE - a LINER. Using the Canada France Hawaii Telescope's (CFHT's) SITELLE instrument we study the effect of dual-AGN on Mrk 266's ISM and the surrounding medium. We present the morphologies and kinematics of the H alpha, H beta, and [OIII] emission. Using emission line diagnostics, we find that more than 50% comes from shocked gas either associated with the AGNs or with the tidal disruption. Mrk 266's complex [OIII] dynamics allow us to speculate that Mrk 266 is analogous to some of the high redshift, dusty systems observed to have high velocity [OIII] outflows. We also suggest that galaxies like Mrk 266 enrich the circumgalactic medium (CGM) in agreement with theoretical work on the role of mergers in transporting metals to the CGM.