Decoupling of a supermassive black hole binary from its magnetically arrested circumbinary accretion disk
arXiv:2410.23264 · doi:10.1103/PhysRevD.111.L081304
Abstract
Merging supermassive black hole (SMBH) binaries will likely be surrounded by a circumbinary accretion disk. Close to merger, gravitational radiation-driven inspiral will happen on timescales faster than the effective viscous time at the disk cavity wall, leading to a decoupling of the inner binary dynamics from the surrounding gaseous environment. Here we perform the first simulation of this decoupling process from a magnetically arrested circumbinary accretion disk. In this regime, the central cavity is filled with very strong vertical magnetic flux, regulating accretion onto the binary. Our simulations identify three main stages of this process: (1) Large-scale magnetic flux loss prior to decoupling. (2) Rayleigh-Taylor-driven accretion streams onto the binary during and after decoupling, which can power magnetic tower-like outflows, resembling dual jets. (3) Post merger, the cavity wall becomes unstable and the magnetic flux trapped inside the cavity will get ejected in large coherent outbreak episodes with implications for potential multi-messenger transients to merging SMBH binaries.
9 pages, 4 figures
References in corpus (61)
- A Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids
- A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
- The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
- Efficient Generation of Jets from Magnetically Arrested Accretion on a Rapidly Spinning Black Hole
- Magnetically Arrested Disk: An Energetically Efficient Accretion Flow
- Relativistic Reconnection: an Efficient Source of Non-Thermal Particles
- The Athena++ Adaptive Mesh Refinement Framework: Design and Magnetohydrodynamic Solvers
- Accretion during the merger of supermassive black holes
- Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas
- The Afterglow of Massive Black Hole Coalescence
- Three Dimensional MHD Simulation of Circumbinary Accretion Disks: Disk Structures and Angular Momentum Transport
- Black hole flares: ejection of accreted magnetic flux through 3D plasmoid-mediated reconnection
- Magnetic Reconnection and Hot Spot Formation in Black Hole Accretion Disks
- On Why Disks Generate Magnetic Towers and Collimate Jets
- Accretion to Magnetized Stars through the Rayleigh-Taylor Instability: Global Three-Dimensional Simulations
- Dual Jets from Binary Black Holes
- Circumbinary MHD Accretion into Inspiraling Binary Black Holes
- Magnetically Arrested Disks and Origin of Poynting Jets: Numerical Study
- Reconnection-Powered Linear Accelerator and Gamma-Ray Flares in the Crab Nebula
- Tidal Truncation of Inclined Circumstellar and Circumbinary Discs in Young Stellar Binaries
- Binary Black-Hole Mergers in Magnetized Disks: Simulations in Full General Relativity
- Magnetospheres of Black Hole Systems in Force-Free Plasma
- Binary Black Hole Accretion During Inspiral and Merger
- Flares in the Galactic center I: orbiting flux tubes in Magnetically Arrested Black Hole Accretion Disks
- Accretion disks around binary black holes of unequal mass: GRMHD simulations near decoupling
- Sgr A* near-infrared flares from reconnection events in a magnetically arrested disc
- Electromagnetic Counterparts to Massive Black Hole Mergers
- Accurate Simulations of Binary Black-Hole Mergers in Force-Free Electrodynamics
- General Relativistic Simulations of Magnetized Plasmas around Merging Supermassive Black Holes
- Double-double radio galaxies: remnants of merger of supermassive binary black holes
- Binary black hole mergers in gaseous disks: Simulations in general relativity
- Accretion disks around binary black holes of unequal mass: GRMHD simulations of postdecoupling and merger
- Dissipation and Heating in Supersonic Hydrodynamic and MHD Turbulence
- Quasi-Periodic Behavior of Mini-Disks in Binary Black Holes Approaching Merger
- On the detectability of dual jets from binary black holes
- Understanding possible electromagnetic counterparts to loud gravitational wave events: Binary black hole effects on electromagnetic fields
- Relativistic Dynamics and Mass Exchange in Binary Black Hole Mini-Disks
- Flux eruption events drive angular momentum transport in magnetically arrested accretion flows
- Electromagnetic precursors to gravitational wave events: Numerical simulations of flaring in pre-merger binary neutron star magnetospheres
- Radiative reconnection-powered TeV flares from the black hole magnetosphere in M87
- Prompt Electromagnetic Transients from Binary Black Hole Mergers
- Mini-disk accretion onto spinning black hole binaries: quasi-periodicities and outflows
- Electromagnetic Signatures from Supermassive Binary Black Holes Approaching Merger
- Minidisk dynamics in accreting, spinning black hole binaries: Simulations in full general relativity
- Flares, jets and quasi-periodic outbursts from neutron star merger remnants
- Jet Formation in 3D GRMHD Simulations of Bondi-Hoyle-Lyttleton Accretion
- Circumbinary Disk Accretion into Spinning Black Hole Binaries
- The Decoupling of Binaries from Their Circumbinary Disks
- Reconnection-powered fast radio transients from coalescing neutron star binaries
- Electromagnetic precursors to black hole - neutron star gravitational wave events: Flares and reconnection-powered fast-radio transients from the late inspiral
- Particle acceleration by magnetic Rayleigh-Taylor instability: mechanism for flares in black-hole accretion flows
- Fully General Relativistic Magnetohydrodynamic Simulations of Accretion Flows onto Spinning Massive Black Hole Binary Mergers
- On the Role of Gas Cooling in the Dynamics of Circumbinary Disks
- Minidisk Influence on Flow Variability in Accreting Spinning Black Hole Binaries: Simulations in Full General Relativity
- Eccentric Minidisks in Accreting Binaries
- Electromagnetic Emission from a Binary Black Hole Merger Remnant in Plasma: Field Alignment and Plasma Temperature
- Magnetically Arrested Circumbinary Accretion Flows
- From Seeds to Supermassive Black Holes: Capture, Growth, Migration, and Pairing in Dense Proto-Bulge Environments
- Astrophysical jets from boosted compact objects
- Changing-Look Inspirals: Trends and Switches in AGN Disk Emission as Signposts for Merging Black Hole Binaries
- Magnetic flux eruptions at the root of time-lags in low-luminosity AGN