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We have utilized high-resolution optical Hubble Space Telescope images anddeep, ground-based near-infrared images to examine the host-galaxies of 37active galactic nuclei with reverberation-based black hole masses. Usingtwo-dimensional image decompositions, we have separated the host galaxy fromthe bright central AGN, allowing a re-examination of the MBH-Lbulge andMBH-Lgalaxy relationships and the MBH-Mbulge and MBH-Mstars relationships usingV-H color to constrain the stellar mass-to-light ratio. We find clearcorrelations for all of these scaling relationships, and the best-fitcorrelations are generally in good agreement with the sample of early-typegalaxies with MBH from dynamical modeling and the sample of megamasers. We alsofind good agreement with the expectations from the Illustris simulations,although the agreement with other simulations is less clear because of thedifferent black hole mass ranges that are probed. MBH-Lbulge is found to havethe least scatter, and is therefore the best predictor of MBH among therelationships examined here. Large photometric surveys that rely on automatedanalysis and forego bulge-to-disk decompositions will achieve more accurate MBHpredictions if they rely on MBH-Mstars rather than MBH-Lgalaxy. Finally, wehave examined MBH/Mstars and find a clear trend with black hole mass but notgalaxy mass. This same trend is also exhibited by galaxies with MBH fromdynamical modeling and megamaser galaxies, as well as simulated galaxies fromIllustris, rising from ~0.01% at 10^6 Msun to ~1.0% at 10^10 Msun. This scalingshould be taken into account when comparing galaxy samples that are not matchedin MBH.

Black Hole - Galaxy Scaling Relationships for Active Galactic Nuclei with Reverberation Masses