The large-scale magnetic field advected in the corona of a thin accretion disk
arXiv:2101.11448 · doi:10.3847/1538-4357/abe125
Abstract
Large-scale magnetic field is believed to play a key role in launching and collimating jets/outflows. It was found that advection of external field by a geometrically thin disk is rather inefficient, while the external weak field may be dragged inwards by fast radially moving tenuous or/and hot gas above the thin disk. We investigate the field advection in a thin (cold) accretion disk covered with hot corona, in which turbulence is responsible for the angular momentum transfer of the gas in the disk and corona. The radial velocity of the gas in the corona is significantly higher than that in the thin disk. Our calculations show that the external magnetic flux is efficiently transported inwards by the corona, and the field line is strongly inclined towards the disk surface, which help launching outflows. The field configurations are consistent with those observed in the numerical simulations. The strength of the field is substantially enhanced in the inner region of the disk (usually several orders of magnitude higher than the external field strength), which is able to drive a fraction of gas in the corona into outflows. This mechanism may be useful in explaining the observational features in X-ray binaries and active galactic nuclei. Our results may help understanding the physics of the magneto-hydrodynamic (MHD) simulations.
arXiv commentAccepted for publication on ApJ
References in corpus (51)
- Observational Evidence of AGN Feedback
- Towards a unified model for black hole X-ray binary jets
- Heating Hot Atmospheres with Active Galactic Nuclei
- Relativistic Jets in Active Galactic Nuclei
- Black holes in galaxy mergers: The formation of red elliptical galaxies
- Evidence for ultra-fast outflows in radio-quiet AGNs: I - detection and statistical incidence of Fe K-shell absorption lines
- Going with the flow: can the base of jets subsume the role of compact accretion disk coronae?
- Wind from the black-hole accretion disk driving a molecular outflow in an active galaxy
- Unification of X-ray winds in Seyfert galaxies: from ultra-fast outflows to warm absorbers
- The magnetic nature of disk accretion onto black holes
- The Suzaku view of highly-ionised outflows in AGN: I - Statistical detection and global absorber properties
- Local Study of Accretion Disks with a Strong Vertical Magnetic Field: Magnetorotational Instability and Disk Outflow
- Evidence for ultra-fast outflows in radio-quiet AGNs: II - detailed photo-ionization modeling of Fe K-shell absorption lines
- A Compton-thick Wind in the High Luminosity Quasar, PDS 456
- Global Evolution of an Accretion Disk with Net Vertical Field: Coronal Accretion, Flux Transport, and Disk Winds
- Global Radiation Magneto-hydrodynamic Simulations of Sub-Eddington Accretion Disks around Supermassive Black Holes
- A unified accretion-ejection paradigm for Black Hole X-ray Binaries
- Cosmic evolution of stellar quenching by AGN feedback: clues from the Horizon-AGN simulation
- Magnetic flux captured by an accretion disk
- Line-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer
- The Turbulent Magnetic Prandtl Number of MHD Turbulence in Disks
- Turbulent resistivity driven by the magnetorotational instability
- Transport of magnetic flux and the vertical structure of accretion discs: I. Uniform diffusion coefficients
- An accretion disc-corona model for X-ray spectra of active galactic nuclei
- Magnetically-Driven Accretion-Disk Winds and Ultra-Fast Outflows in PG1211+143
- Strongly magnetized accretion disks: structure and accretion from global magnetohydrodynamic simulations
- Advection/Diffusion of Large-Scale B-Field in Accretion Disks
- The large scale magnetic fields of thin accretion disks
- Transport of magnetic flux and the vertical structure of accretion discs: II. Vertical profile of the diffusion coefficients
- Are X-ray Emitting Coronae around Super Massive Black Holes Outflowing?
- Revealing the ultra-fast outflow in IRAS 13224-3809 through spectral variability
- Resolving the soft X-ray ultra fast outflow in PDS 456
- An Obscured, Seyfert-2-like State of the Stellar-mass Black Hole GRS 1915+105 Caused by Failed Disk Winds
- A Physical Link Between Jet Formation and Hot Plasma in Active Galactic Nuclei
- Analytical Solution of Magnetically Dominated Astrophysical Jets and Winds: Jet Launching, Acceleration, and Collimation
- Magneto-hydrodynamical Numerical simulation of wind production from black hole hot accretion flows at very large radii
- Theory of magnetically powered jets
- Thermal stability of thin disk with magnetically driven winds
- Jet power extracted from ADAF and the applications to X-ray binaries and radio galaxy FR dichotomy
- A general relativistic model of accretion disks with coronae surrounding Kerr black holes
- Physical Conditions in Ultra Fast Outflows in AGN
- The large-scale magnetic field of a thin accretion disk with outflows
- Magnetized Disk-Winds in NGC 3783
- Fast Inflow Directly Feeding Black Hole Accretion Disk in Quasars
- Testing wind as an explanation for the spin problem in the continuum-fitting method
- The high efficiency jets magnetically accelerated from a thin disk in powerful lobe-dominated FRII radio galaxies
- Large-scale dynamics of winds originated from black hole accretion flows: (II) Magnetohydrodynamics
- The power of the jets accelerated by the coronal magnetic field
- Insight-HXMT observations of a possible fast transition from jet to wind dominated state during a huge flare of GRS~1915+105
- Metal-rich trailing outflows uplifted by AGN bubbles in galaxy clusters
- Growth of massive black holes at high-z via accretion predominantly driven by magnetic outflows