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The tight correlations between the mass of supermassive black holes ($M_{\rmBH}$) and their host-galaxy properties have been of great interest to theastrophysical community, but a clear understanding of their origin andfundamental drivers still eludes us. The local relations for active galaxiesare interesting in their own right and form the foundation for any evolutionarystudy over cosmic time. We present Hubble Space Telescope optical imaging of asample of 66 local active galactic nuclei (AGNs); for 14 objects, we alsoobtained Gemini near-infrared images. We use state of the art methods toperform surface photometry of the AGN host galaxies, decomposing them inspheroid, disk and bar (when present) and inferring the luminosity and stellarmass of the components. We combine this information with spatially-resolvedkinematics obtained at the Keck Telescopes to study the correlations between$M_{\rm BH}$ (determined from single-epoch virial estimators) and host galaxyproperties. The correlations are uniformly tight for our AGN sample, withintrinsic scatter 0.2-0.4 dex, smaller than or equal to that of quiescentgalaxies. We find no difference between pseudo and classical bulges or barredand non-barred galaxies. We show that all the tight correlations can besimultaneously satisfied by AGN hosts in the 10$^7$-10$^9$ $M_{\odot}$ regime,with data of sufficient quality. The MBH-$\sigma$ relation is also in agreementwith that of AGNs with $M_{\rm BH}$ obtained from reverberation mapping,providing an indirect validation of single-epoch virial estimators of $M_{\rmBH}$.

astrophysical journal/the astrophysical journal

A local baseline of the black hole mass scaling relations for active  galaxies. IV. Correlations between $M_{\rm BH}$ and host galaxy $\sigma$,  stellar mass, and luminosity