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Motivated by recent achievements of a full general relativistic method inestimating the black hole (BH) parameters, we continue to estimate themass-to-distance ratio of a set of supermassive BHs hosted at the core of theactive galactic nuclei (AGNs) of NGC 1320, NGC 1194, NGC 5495, Mrk 1029, andJ1346+5228. We also include the $x_0$-offset of BHs as well as recessionalredshifts of host galaxies produced by peculiar motion and cosmologicalexpansion of the Universe in our estimation. In order to perform calculations,we use a general relativistic model and a Bayesian fitting method. We find thatthis model allows us to estimate the central BH mass-to-distance ratio ofJ1346+5228 for the first time. Finally, we calculate the gravitational redshiftof the closest maser to the BH for each AGN. This gravitational redshift is ageneral relativistic effect produced by the gravitational field that is nowproperly included in the modeling.

A general relativistic mass-to-distance ratio for a set of megamaser AGN black holes II