NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-17 T11:43:08 PDT
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For refcode 2018ApJ...864..146B:
Retrieve 37 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2018ApJ...864..146B Black Hole--Galaxy Scaling Relationships for Active Galactic Nuclei with Reverberation Masses Bentz, Misty C.; Manne-Nicholas, Emily Abstract. We have utilized high-resolution optical Hubble Space Telescope images and deep, ground-based near-infrared images to examine the host galaxies of 37 active galactic nuclei (AGNs) with reverberation-based black hole masses. Using two-dimensional image decompositions, we have separated the host galaxy from the bright central AGN, allowing a re-examination of the {M}_BH_}{--}{L}_bulge_} and {M}_BH_}{--}{L}_galaxy_} relationships and the {M}_BH_}{--}{M}_bulge_} and {M}_BH_}{--}{M}_stars_} relationships using V-H color to constrain the stellar mass-to-light ratio. We find clear correlations for all of these scaling relationships, and the best-fit correlations are generally in good agreement with the sample of early-type galaxies with M_BH_ from dynamical modeling and the sample of megamasers. We also find good agreement with the expectations from the Illustris simulations, although the agreement with other simulations is less clear because of the different black hole mass ranges that are probed. {M}_BH_}{--}{L}_bulge_} is found to have the least scatter, and is therefore the best predictor of M_BH_ among the relationships examined here. Large photometric surveys that rely on automated analysis and forego bulge-to-disk decompositions will achieve more accurate M_BH_ predictions if they rely on {M}_BH_}{--}{M}_stars_} rather than {M}_BH_}{--}{L}_galaxy_}. Finally, we have examined M_BH_/M_stars_ and find a clear trend with black hole mass but not galaxy mass. This trend is also exhibited by galaxies with M_BH_ from dynamical modeling and megamaser galaxies, as well as simulated galaxies from Illustris, rising from ~0.01% at 10^6^ M_sun_ to ~1.0% at 10^10^ M_sun_. This scaling should be taken into account when comparing galaxy samples that are not matched in M_BH_. Key words: galaxies: active, galaxies: photometry, galaxies: Seyfert, quasars: supermassive black holes
Retrieve 37 NED objects in this reference.
Please click here for ADS abstract

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