What Does the Virial Coefficient of the \Hb Broad-Line Region Depend On?

Abstract

We combine our dynamical modeling black hole mass measurements from the Lick AGN Monitoring Project 2016 sample with measured cross-correlation time lags and line widths to recover individual scale factors, f, used in traditional reverberation mapping analyses. We extend our sample by including prior results from Code for AGN Reverberation and Modeling of Emission Lines (caramel) studies that have utilized our methods. Aiming to improve the precision of black hole mass estimates, as well as uncover any regularities in the behavior of the broad-line region (BLR), we search for correlations between f and other AGN/BLR parameters. We find (i) evidence for a correlation between the virial coefficient log10(fmean,σ) and black hole mass, (ii) marginal evidence for a similar correlation between log10(frms,σ) and black hole mass, (iii) marginal evidence for an anti-correlation of BLR disk thickness with log10(fmean,FWHM)and log10(frms,FWHM), and (iv) marginal evidence for an anti-correlation of inclination angle with log10(fmean,FWHM), log10(frms,σ), and log10(fmean,σ). Lastly, we find marginal evidence for a correlation between line-profile shape, when using the root-meansquare spectrum, log10(FWHM/σ)rms, and the virial coefficient, log10(frms,σ), and investigate how BLR properties might be related to line-profile shape using caramel models.

arXiv comment17 pages, 10 figures

References in corpus (45)

• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The Demography of Massive Dark Objects in Galaxy Centres
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database
• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• Supermassive Black Holes in Galactic Nuclei: Past, Present and Future Research
• Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
• Supermassive Black Holes in Active Galactic Nuclei. II. Calibration of the M-sigma Relationship for AGNs
• Systematic Effects in Measurement of Black Hole Masses by Emission-Line Reverberation of Active Galactic Nuclei: Eddington Ratio and Inclination
• An expanded M_bh-sigma diagram, and a new calibration of active galactic nuclei masses
• Reverberation Mapping Measurements of Black Hole Masses in Six Local Seyfert Galaxies
• Modeling reverberation mapping data II: dynamical modeling of the Lick AGN Monitoring Project 2008 dataset
• Spatially resolved rotation of the broad-line region of a quasar at sub-parsec scale
• The black hole mass - stellar velocity dispersion relation of narrow-line Seyfert 1 galaxies
• The Lick AGN Monitoring Project: The MBH - sigma Relation For Reverberation-Mapped Active Galaxies
• The Black Hole Mass - Galaxy Bulge Relationship for QSOs in the SDSS DR3
• Stellar Velocity Dispersion Measurements in High-Luminosity Quasar Hosts and Implications for the AGN Black Hole Mass Scale
• Reverberation mapping of Active Galactic Nuclei: from X-ray corona to dusty torus
• Reverberation Mapping Results for Five Seyfert 1 Galaxies
• A Reverberation-Based Mass for the Central Black Hole in NGC 4151
• The Lick AGN Monitoring Project 2011: Spectroscopic Campaign and Emission-Line Light Curves
• The mass relations between supermassive black holes and their host galaxies at 1<z<2 with HST-WFC3
• Cosmic Evolution of Black Holes and Spheroids. I: The M_BH-sigma Relation at z=0.36
• Cosmic Evolution of Black Holes and Spheroids. III. The M-sigma relation in the last six billion years
• Do quiescent and active galaxies have different M_BH-sigma relations?
• Mapping the radial structure of AGN tori
• Geometric and Dynamical Models of Reverberation Mapping Data
• The Structure of the Broad-Line Region In Active Galactic Nuclei. II. Dynamical Modeling of Data from the AGN10 Reverberation Mapping Campaign
• Recalibration of the virial factor and M-sigma relation for local active galaxies
• The Lick AGN Monitoring Project: Recalibrating Single-Epoch Virial Black Hole Mass Estimates
• Space Telescope and Optical Reverberation Mapping Project. V. Optical Spectroscopic Campaign and Emission-Line Analysis for NGC 5548
• Cosmic Evolution of Black Holes and Spheroids. IV. The BH Mass - Spheroid Luminosity Relation
• The broad emission-line region: the confluence of the outer accretion disc with the inner edge of the dusty torus
• The relation between black hole mass and velocity dispersion at z~0.37
• The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad-Line Region
• Selection effects in the black hole-bulge relation and its evolution
• The spatially resolved broad line region of IRAS 09149-6206
• The shape of broad-line profiles in AGN
• Recalibration of the $M_{BH}-{\sigma }_{\star }$ Relation for AGN
• The host galaxies and black-hole:galaxy mass ratios of luminous quasars at z~4
• Space Telescope and Optical Reverberation Mapping Project. XII. Broad-Line Region Modeling of NGC 5548
• The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies
• A recollimation shock 80 mas from the core in the jet of the radio galaxy 3C120: Observational evidence and modeling
• Robotic Reverberation Mapping of the Southern Seyfert NGC 3783

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• Precision near-IR spectroscopy for understanding AGN physics and shed light on the H0 tension -- SHARP Science Book