Circumbinary Disk Accretion into Spinning Black Hole Binaries
arXiv:2102.00243 · doi:10.3847/1538-4357/abf0af
Abstract
Supermassive black hole binaries are likely to accrete interstellar gas through a circumbinary disk. Shortly before merger, the inner portions of this circumbinary disk are subject to general relativistic effects. To study this regime, we approximate the spacetime metric of close orbiting black holes by superimposing two boosted Kerr-Schild terms. After demonstrating the quality of this approximation, we carry out very long-term general relativistic magnetohydrodynamic simulations of the circumbinary disk. We consider black holes with spin dimensionless parameters of magnitude 0.9, in one simulation parallel to the orbital angular momentum of the binary, but in another anti-parallel. These are contrasted with spinless simulations. We find that, for a fixed surface mass density in the inner circumbinary disk, aligned spins of this magnitude approximately reduce the mass accretion rate by 14% and counter-aligned spins increase it by 45%, leaving many other disk properties unchanged.
23 pages, 15 figures, Submitted to ApJ
References in corpus (28)
- Laser Interferometer Space Antenna
- A Compact Supermassive Binary Black Hole System
- Massive black hole binary mergers within sub-pc scale gas discs
- A possible close supermassive black-hole binary in a quasar with optical periodicity
- Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas
- Supermassive black hole binaries in gaseous and stellar circumnuclear discs: orbital dynamics and gas accretion
- Viscous Hydrodynamics Simulations of Circumbinary Accretion Discs: Variability, Quasi-Steady State, and Angular Momentum Transfer
- Binary-black-hole initial data with nearly-extremal spins
- Hydrodynamic Torques in Circumbinary Accretion Disks
- Binary Black-Hole Mergers in Magnetized Disks: Simulations in Full General Relativity
- Circumbinary Accretion from Finite and Infinite Disks
- Gas-driven inspiral of binaries in thin accretion disks
- The NANOGrav 12.5-year Data Set: Wideband Timing of 47 Millisecond Pulsars
- Three Dimensional MHD Simulation of Circumbinary Accretion Disks -2. Net Accretion Rate
- Improved methods for simulating nearly extremal binary black holes
- General Relativistic Simulations of Magnetized Plasmas around Merging Supermassive Black Holes
- Accretion disks around binary black holes of unequal mass: GRMHD simulations of postdecoupling and merger
- Binary black hole mergers in gaseous disks: Simulations in general relativity
- Dynamics of galaxy cores and supermassive black holes
- Quasi-Periodic Behavior of Mini-Disks in Binary Black Holes Approaching Merger
- Relativistic Dynamics and Mass Exchange in Binary Black Hole Mini-Disks
- Quasi-Periodicity of Supermassive Binary Black Hole Accretion Approaching Merger
- Galaxy Rotation and Supermassive Black Hole Binary Evolution
- Population Estimates for Electromagnetically-Distinguishable Supermassive Binary Black Holes
- Inward Bound: The incredible journey of massive black holes as they pair and merge; I. The effect of mass ratio in flattened rotating galactic nuclei
- Resolving the relative influence of strong field spacetime dynamics and MHD on circumbinary disk physics
- Evolutions of Nearly Maximally Spinning Black Hole Binaries Using the Moving Puncture Approach
- Study of Conformally Flat Initial Data for Highly Spinning Black Holes and their Early Evolutions
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- Electromagnetic Counterparts to Massive Black Hole Mergers
- Mass-ratio and Magnetic Flux-Dependence of Modulated Accretion from Circumbinary Disks
- Electromagnetic Signatures from Supermassive Binary Black Holes Approaching Merger
- Mini-disk accretion onto spinning black hole binaries: quasi-periodicities and outflows
- Self-lensing flares from black hole binaries I: general-relativistic ray tracing of black hole binaries
- Superposed metric for spinning black hole binaries approaching merger
- Post-dynamical inspiral phase of common envelope evolution: Binary orbit evolution and angular momentum transport
- Magnetically Arrested Circumbinary Accretion Flows
- GRMHD study of accreting massive black hole binaries in astrophysical environment: a review
- GRMHD simulations of accretion flows onto massive binary black hole mergers embedded in a thin slab of gas
- On the origin of the lump in circumbinary discs
- Gravitational recoil from binary black hole mergers in scalar field clouds
- General Relativistic Magnetohydrodynamic Simulations of Accretion Disks Around Tilted Binary Black Holes of Unequal Mass
- Post-dynamical inspiral phase of common envelope evolution. The role of magnetic fields
- Final stage of merging binaries of supermassive black holes: observational signatures
- AsterX: a new open-source GPU-accelerated GRMHD code for dynamical spacetimes
- Relativistic gas accretion onto supermassive black Hole binaries from inspiral through merger
- Radiation Magnetohydrodynamic Simulation of sub-Eddington Circumbinary Disk around an Equal-mass Massive Black Hole Binary
- Decoupling of a supermassive black hole binary from its magnetically arrested circumbinary accretion disk
- Milliarcsecond X-ray astrometry to resolve inner regions of AGN at using gravitational lensing
- Binary black holes in magnetized AGN disks
- Binary black holes gone MAD: Magnetically arrested minidisks around nonspinning black holes
- A novel sub-grid model for super-Eddington accretion of spinning black holes in galaxy-scale simulations
- Spacetime in motion: an evolving relativistic binary black hole metric for GIZMO
- Misaligned Spinning Binary Black Hole Mergers in Hot Magnetized Plasma