Magnetohydrodynamic winds driven by line force from the standard thin disk around supermassive black holes: II. a possible model for ultra-fast outflows in radio-loud AGNs

Abstract

In radio-loud active galactic nuclei (AGNs), ultra-fast outflows (UFOs) were detected at the inclination angle of $\sim 10^{\mathrm{o}}$--$70^{\mathrm{o}}$ away from jets. Except for the inclination angle of UFOs, the UFOs in radio-loud AGNs have similar properties to that in radio-quiet AGNs. The UFOs with such low inclination cannot be explained in the line-force mechanism. The magnetic-driving mechanism is suggested to explain the UFOs based on a self-similar solution with radiative transfer calculations. However, the energetics of self-similar solution need to be further confirmed based on numerical simulations. To understand the formation and acceleration of UFOs in radio-loud AGNs, this paper presents a model of the disk winds driven by both line force and magnetic field and implements numerical simulations. Initially, a magnetic field is set to 10 times stronger than the gas pressures at the disk surface. Simulation results imply that the disk winds driven by both line force and magnetic field could describe the properties of UFOs in radio-loud AGNs. Pure magnetohydrodynamics (MHDs) simulation is also implemented. When the initial conditions are the same, the hybrid models of magnetic fields and line force are more helpful to form UFOs than the pure MHD models. It is worth studying the case of a stronger magnetic field to confirm this result.

arXiv commentAccepted for publication in ApJ

References in corpus (30)

• Dynamics of line-driven disk winds in Active Galactic Nuclei
• Evidence for ultra-fast outflows in radio-quiet AGNs: I - detection and statistical incidence of Fe K-shell absorption lines
• Dynamics of Line-Driven Disk Winds in Active Galactic Nuclei II: Effects of Disk Radiation
• The Suzaku view of highly-ionised outflows in AGN: I - Statistical detection and global absorber properties
• Evidence for ultra-fast outflows in radio-quiet AGNs: II - detailed photo-ionization modeling of Fe K-shell absorption lines
• The tight relation between X-ray and ultraviolet luminosity of quasars
• Evidence for ultra-fast outflows in radio-quiet AGNs: III - location and energetics
• A soft X-ray study of Type I AGN observed with Chandra HETGS
• Radiative Transfer and Acceleration in Magnetocentrifugal Winds
• Parabolic Jets from the Spinning Black Hole in M87
• Ultra-fast outflows in radio-loud active galactic nuclei
• Multi-dimensional modelling of X-ray spectra for AGN accretion-disk outflows III: application to a hydrodynamical simulation
• A Census of Intrinsic Narrow Absorption Lines in the Spectra of Quasars at z=2-4
• Line-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer
• Confirmation of and Variable Energy Injection by a Near-Relativistic Outflow in APM 08279+5255
• Evidence for a radiatively driven disc-wind in PDS 456?
• Variability Tests for Intrinsic Absorption Lines in Quasar Spectra
• Stratified Magnetically-Driven Accretion-Disk Winds and Their Relations to Jets
• Radiation Hydrodynamic Simulations of Line-Driven Disk Winds for Ultra Fast Outflows
• Line-driven disk wind model for ultra-fast outflows in active galactic nuclei -- Scaling with luminosity
• Does the X-ray outflow quasar PDS 456 have a UV outflow at 0.3c?
• Modeling High-Velocity QSO Absorbers with Photoionized MHD Disk-Winds
• Absorption lines from magnetically-driven winds in X-ray binaries
• Multiphase quasar-driven outflows in PG 1114+445. I. Entrained ultra-fast outflows
• Resolving the soft X-ray ultra fast outflow in PDS 456
• Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
• Variable Nature of Magnetically-Driven Ultra-Fast Outflows
• Tracking the Iron K$\alpha$ line and the Ultra Fast Outflow in NGC 2992 at different accretion states
• Imprints of a high velocity wind on the soft x-ray spectrum of PG 1211+143
• The launching condition of a jet driven by the magnetic field and radiation pressure of an accretion disc

Cited by in corpus (5)

• Large-scale Dynamics of Winds Driven by Line Force from a Thin Accretion Disk
• The dynamical structure of the outflows driven by a large-scale magnetic field
• Effect of radiation drag on the line-force-driven winds
• Poynting-Robertson effect on black-hole-driven winds
• Numerical simulations of the line-force-driven winds from active galactic nuclei: The special relativistic effects