Mrk\,622 is a Compton Thick AGN and a double-peaked narrow emission line galaxy, thus a dual AGN candidate. In this work, new optical long-slit spectroscopic observations clearly show that this object is rather a triple peaked narrow emission line galaxy, with both blue and red shifted narrow emission lines, as well as a much narrower emission line centred at the host galaxy systemic velocity. The average velocity offset between the blue and red shifted components is ∼500 km\,s−1, which is producing the apparent double-peaked emission lines. These two components are in the loci of AGN in the Baldwin, Phillips \& Terlevich (BPT) diagrams and are found to be spatially separated by ∼76 pc. Analysis of the optical spatially resolved spectroscopic observations presented in this work favours that Mrk\,622 is a system consisting of a Composite AGN amidst a binary AGN candidate, likely the result of a recent merger. This notwithstanding, outflows from a starburst, or single AGN could also explain the triple nature of the emission lines.
@article{arxiv.1711.06655,
title = {A possible binary AGN in Mrk\,622?},
author = {E. Benítez and J. M. Rodríguez-Espinosa and I. Cruz-González and O. González-Martín and C. A. Negrete and D. Ruschel-Dutra and L. Gutiérrez and E. Jiménez-Bailón},
journal= {arXiv preprint arXiv:1711.06655},
year = {2017}
}