Winds and Disk Turbulence Exert Equal Torques on Thick Magnetically Arrested Disks

Abstract

The conventional accretion disk lore is that magnetized turbulence is the principal angular momentum transport process that drives accretion. However, when dynamically important large-scale magnetic fields thread an accretion disk, they can produce mass and angular momentum outflows, known as winds, that also drive accretion. Yet, the relative importance of turbulent and wind-driven angular momentum transport is still poorly understood. To probe this question, we analyze a long-duration ($1.2\times 10^5{r}_{\mathrm{g}}/c$) simulation of a rapidly rotating ($a=0.9$) black hole feeding from a thick ($H/r\sim 0.3$), adiabatic, magnetically arrested disk (MAD), whose dynamically important magnetic field regulates mass inflow and drives both uncollimated and collimated outflows (i.e., winds and jets, respectively). By carefully disentangling the various angular momentum transport processes within the system, we demonstrate the novel result that disk winds and disk turbulence both extract roughly equal amounts of angular momentum from the disk. We find cumulative angular momentum and mass accretion outflow rates of $\dot{L}\propto r^{0.9}$ and $\dot{M}\propto r^{0.4}$, respectively. This result suggests that understanding both turbulent and laminar stresses is key to understanding the evolution of systems where geometrically thick MADs can occur, such as the hard state of X-ray binaries, low-luminosity active galactic nuclei, some tidal disruption events, and possibly gamma-ray bursts.

12 pages, 6 figures

References in corpus (66)

• X-ray Properties of Black-Hole Binaries
• First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
• Efficient Generation of Jets from Magnetically Arrested Accretion on a Rapidly Spinning Black Hole
• A fundamental plane of black hole activity
• General Relativistic Magnetohydrodynamic Simulations of Magnetically Choked Accretion Flows around Black Holes
• Massive Molecular Outflows and Evidence for AGN Feedback from CO Observations
• Sources of Relativistic Jets in the Galaxy
• Relativistic Jets in Active Galactic Nuclei
• HARM: A Numerical Scheme for General Relativistic Magnetohydrodynamics
• Magnetically Arrested Disk: An Energetically Efficient Accretion Flow
• A universal radio/X-ray correlation in low/hard state black hole binaries
• First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole
• Three-dimensional MHD Simulations of Radiatively Inefficient Accretion Flows
• Radio / X-ray correlation in the low/hard state of GX 339--4
• Ubiquitous equatorial accretion disc winds in black hole soft states
• The disc instability model for X-ray transients: evidence for truncation and irradiation
• The "universal" radio/X-ray flux correlation : the case study of the black hole GX 339-4
• Changing look: from Compton-thick to Compton-thin, or the re-birth of fossil AGN
• Exploring the Role of Jets in the Radio/X-ray Correlations of GX339-4
• Swift J1644+57 gone MAD: the case for dynamically-important magnetic flux threading the black hole in a jetted tidal disruption event
• Large-Scale Poloidal Magnetic Field Dynamo Leads to Powerful Jets in GRMHD Simulations of Black Hole Accretion with Toroidal Field
• Global Evolution of an Accretion Disk with Net Vertical Field: Coronal Accretion, Flux Transport, and Disk Winds
• Ultra-fast outflows in radio-loud active galactic nuclei
• A unified accretion-ejection paradigm for Black Hole X-ray Binaries
• Accretion Discs with Strong Toroidal Magnetic Fields
• Accretion disc dynamo activity in local simulations spanning weak-to-strong net vertical magnetic flux regimes
• The response of relativistic outflowing gas to the inner accretion disk of a black hole
• Bardeen-Petterson Alignment, Jets and Magnetic Truncation in GRMHD Simulations of Tilted Thin Accretion Discs
• The Role of Magnetic Field Geometry in the Evolution of Neutron Star Merger Accretion Discs
• Advection of Magnetic Fields in Accretion Disks: Not So Difficult After All
• Extreme AGN variability: evidence of magnetically elevated accretion?
• On the Thermal Stability of Radiation Dominated Accretion Disks
• Quasar Viscosity Crisis
• The magnetorotational instability as a jet launching mechanism
• Strong disc winds traced throughout outbursts in black-hole X-ray binaries
• Thin accretion disks are stabilized by a strong magnetic field
• H-AMR: A New GPU-accelerated GRMHD Code for Exascale Computing With 3D Adaptive Mesh Refinement and Local Adaptive Time-stepping
• Formation of Magnetically Truncated Accretion Disks in 3D Radiation-Transport Two-Temperature GRMHD Simulations
• Efficiency of Thin Magnetically-Arrested Disks Around Black Holes
• Strongly magnetized accretion disks: structure and accretion from global magnetohydrodynamic simulations
• Flux eruption events drive angular momentum transport in magnetically arrested accretion flows
• Magnetic Flux of Progenitor Stars Sets Gamma-ray Burst Luminosity and Variability
• On The Efficiency of Jet Production in Radio Galaxies
• Magnetic outflows from turbulent accretion disks: I. Vertical structure & secular evolution
• Global evolution of the magnetic field in a thin disc and its consequences for protoplanetary systems
• Magnetically-driven jets and winds from weakly magnetized accretion disks
• Magnetically-levitating disks around supermassive black holes
• A Resolution Study of Magnetically Arrested Disks
• Near-infrared emission lines trace the state-independent accretion disc wind of the black hole transient MAXI J1820+070
• A unified accretion-ejection paradigm for black hole X-ray binaries. IV. Replication of the 2010--2011 activity cycle of GX 339-4
• High ionisation absorption in low mass X-ray binaries
• The effects of thermodynamic stability on wind properties in different low mass black hole binary states
• Multiphase AGN winds from X-ray irradiated disk atmospheres
• Radiation Transport Two-Temperature GRMHD Simulations of Warped Accretion Disks
• Angular Momentum Transport in Thin Magnetically Arrested Disks
• Nozzle Shocks, Disk Tearing and Streamers Drive Rapid Accretion in 3D GRMHD Simulations of Warped Thin Disks
• The thermal-radiative wind in low mass X-ray binary H 1743-322; Radiation hydrodynamic simulations
• General Relativistic Radiation Magnetohydrodynamic Simulations of Thin Magnetically Arrested Disks
• On the Decay of Strong Magnetization in Global Disc Simulations with Toroidal Fields
• What powers the wind from the black hole accretion disc in GRO J1655-40?
• Equations of general relativistic radiation hydrodynamics in Kerr space-time
• Modeling Magnetic Disk-Wind State Transitions in Black Hole X-ray Binaries
• Absorption lines from magnetically driven winds in X-ray binaries II: high resolution observational signatures expected from future X-ray observatories
• Magnetic field transport in compact binaries
• Magneto centrifugal winds from accretion discs around black hole binaries
• Ask The Machine: Systematic detection of wind-type outflows in low-mass X-ray binaries

Cited by in corpus (8)

• H-AMR FORGE'd in FIRE I: Magnetic state transitions, jet launching and radiative emission in super-Eddington, highly magnetized quasar disks formed from cosmological initial conditions
• Magnetically-Driven Neutron-Rich Ejecta Unleashed: Global 3D Neutrino-General Relativistic Magnetohydrodynamic Simulations of Collapsars Probe the Conditions for r-process Nucleosynthesis
• Chaotic magnetic disconnections trigger flux eruptions in accretion flows channeled onto magnetically saturated Kerr black holes
• Thermal solutions of strongly magnetized disks and the hysteresis in X-ray binaries
• Influence of the turbulent magnetic pressure on isothermal jet emitting disks
• Evidence for Low Universal Equilibrium Black Hole Spin in Luminous Magnetically Arrested Disks
• Binary black holes gone MAD: Magnetically arrested minidisks around nonspinning black holes
• Extreme magnetic fields around black holes