Program: GN-2023A-DD-103

The coalescence of binary supermassive black holes in galaxy mergers is thought to constitute the strongest source of gravitational waves, however, crucial information about the population of inpsiraling SMBH pairs at the few hundred pc to few kpc scale that are observable as dual AGN is only possible in nearby AGN. The Seyfert galaxy CGCG341-006 has recently been found to host a hidden nuclear merger in NIR adaptive optics separated by 1.6'' (1.5 kpc) at redshift z=0.046, which shows some evidence of a dual AGN (9 counts in secondary). In conjunction with approved Chandra and VLA observations, we request 2 hours on GMOS to measure the velocity dispersion using the calcium triplet (redshifted to 8890-9060 Ang), which is critical to estimate the black hole mass via velocity dispersion, which provides insight for future sensitivities to this type of source with LISA.