Follow-up X-ray spectral analysis of XMM-Newton observations of the X-ray and Optical variable AGN in A2063

Actively accreting black holes in AGN are key tools for probing accretion physics, as well as black hole-galaxy formation and co-evolution. While using X-ray observation of clusters of galaxies to search for tidal disruption events, we uncovered the galaxy pair CGCG 077-102 NED01-NED02 embedded in the core of the cluster A2063, at z~0.03. NED02 - the sole X-ray bright galaxy of the pair - has been identified as an AGN via optical spectroscopy. With Chandra and XMM-Newton archival data, we have found that NED02 is variable in both the optical and X-rays. The X-ray luminosity corresponds to an ultra-luminous X-ray source (ULX) at ~10⁴² erg/s over the 0.5-7.0 keV band. Therefore, a lower mass limit estimate on the central black hole by the spherical Eddington limit is ~10⁴ solar masses — near the high end of the intermediate black hole mass range. As a follow-up to the initial study of NED02, we found that XMM-Newton spectral data revealed a redshifted, Fe-K emission line at ~6.7 keV. We present an up-to-date analysis of NED02's spectral features, as well as compare our results with prior measurements of fluorescent Fe lines from AGN spectral work and accretion disk models therein.