Magnetohydrodynamic DiscWinds and LineWidth Distributions.II

Abstract

We study AGN emission line profiles combining an improved version of the accretion disc-wind model of Murray & Chiang with the magneto-hydrodynamic model of Emmering et al. (1992). Here we extend our previous work to consider central objects with different masses and/or luminosities. We have compared the dispersions in our model C IV linewidth distributions to observational upper limit on that dispersion, considering both smooth and clumpy torus models. Following Fine et al., we transform that scatter in the profile line-widths into a constraint on the torus geometry and show how the half-opening angle of the obscuring structure depends on the mass of the central object and the accretion rate. We find that the results depend only mildly on the dimensionless angular momentum, one of the two integrals of motion that characterise the dynamics of the self-similar ideal MHD outflows

17 pages, 14 figures, to appear in MNRAS

References in corpus (45)

• Composite Quasar Spectra From the Sloan Digital Sky Survey
• The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
• On the Black Hole Mass - Bulge Mass Relation
• The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
• Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships
• Cosmological Evolution of the Hard X-ray AGN Luminosity Function and the Origin of the Hard X-ray Background
• A Structure for Quasars
• Foundations of Black Hole Accretion Disk Theory
• AGN Dusty Tori: I. Handling of Clumpy Media
• Systematic Effects in Measurement of Black Hole Masses by Emission-Line Reverberation of Active Galactic Nuclei: Eddington Ratio and Inclination
• Reverberation Mapping of High-Luminosity Quasars: First Results
• The Discovery of the First "Changing Look" Quasar: New Insights into the Physics & Phenomenology of AGN
• X-ray spectral properties of AGN in the Chandra Deep Field South
• Evidence for Supermassive Black Holes in Active Galactic Nuclei from Emission-Line Reverberation
• The luminosity dependence of the Type 1 AGN fraction
• Completion of a Survey and Detailed Study of Double-Peaked Emission Lines in Radio-Loud AGNs
• Torus and AGN properties of nearby Seyfert galaxies: Results from fitting IR spectral energy distributions and spectroscopy
• A strong redshift dependence of the broad absorption line quasar fraction
• Dusty Structure Around Type-I Active Galactic Nuclei: Clumpy Torus Narrow Line Region and Near-Nucleus Hot Dust
• On the Disappearance of the Broad-Line Region in Low-Luminosity Agns
• The Structure of the Broad Line Region in AGN: I. Reconstructed Velocity-Delay Maps
• What broad emission lines tell us about how active galactic nuclei work
• Radiative Transfer and Acceleration in Magnetocentrifugal Winds
• Evolution of Broad-line Emission from Active Galactic Nuclei
• Black Hole Mass Estimates Based on CIV are Consistent with Those Based on the Balmer Lines
• HST STIS Ultraviolet Spectral Evidence of Outflow in Extreme Narrow-line Seyfert 1 Galaxies: II. Modeling and Interpretation
• Obscuration in extremely luminous quasars
• AGN dust tori at low and high luminosities
• Dynamics of Broad-Emission Line Region in NGC 5548: Hydromagnetic Wind Model versus Observations
• A New Catalogue of Type 1 AGN and its Implication on the AGN Unified Model
• The broad emission-line region: the confluence of the outer accretion disc with the inner edge of the dusty torus
• Line-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer
• AGN Obscuration and the Unified Model
• Are Outflows Biasing Single-Epoch CIV Black Hole Mass Estimates?
• XMM and Chandra measurements of the AGN intrinsic absorption: dependence on luminosity and redshift
• On the geometry of broad emission region in quasars
• The Civ line width distribution for quasars and its implications for broad-line region dynamics and virial mass estimation
• On the large-scale outflows in active galactic nuclei: consequences of coupling the mass-supply rate and accretion luminosity
• Zooming into the broad line region of the gravitationally lensed quasar Q2237+0305 = the Einstein Cross: III. Determination of the size and structure of the CIV and CIII] emitting regions using microlensing
• The quasar M_bh - M_host relation through Cosmic Time I - Dataset and black hole masses
• Quasar Cartography: from Black Hole to Broad Line Region Scales
• MHD Disc Winds and Linewidth Distributions
• Direct evidence of the receding `torus' around central nuclei of powerful radio sources
• Constraining the quasar population with the broad-line width distribution
• The Cosmic History of Black Hole Growth from Deep Multiwavelength Surveys

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• Stratified disc wind models for the AGN broad-line region: ultraviolet, optical and X-ray properties
• The Sloan Digital Sky Survey Reverberation Mapping Project: the CIV Blueshift, Its Variability, and Its Dependence Upon Quasar Properties
• Emission Signatures from Sub-parsec Binary Supermassive Black Holes II: Effect of Accretion Disk Wind on Broad Emission Lines
• A disc wind model for blueshifts in quasar broad emission lines
• Quasar emission lines as probes of orientation: implications for disc wind geometries and unification
• The Kinematics of Quasar Broad Emission Line Regions Using a Disk-wind Model
• Using the Properties of Broad Absorption Line Quasars to Illuminate Quasar Structure
• Collective properties of quasar narrow associated absorption lines