Multimessenger Signatures of Tilted, Self-Gravitating, Black Hole Disks

Abstract

We perform fully relativistic GRMHD simulations of magnetized, self-gravitating black hole-disk (BHD) systems in which the black hole spin is misaligned with the disk angular momentum. Massive disks (disk to BH mass ratios of $16-28\%$) around rapidly rotating black holes ($\chi \lesssim 0.97$) develop a nonaxisymmetric instability for tilt angles from $0^{\circ }$ to $180^{\circ }$. Magnetic stresses damp, but do not completely suppress, the nonaxisymmetric instability, and corresponding gravitational wave (GW) emission, in aligned systems, while they enhance it in antialigned BHDs: MRI-driven turbulence enhances angular momentum transport and accelerates nonlinear instability evolution in misaligned configurations. All models launch magnetically driven jets consistent with the Blandford-Znajek (BZ) mechanism, with collimation depending on spin orientation. The GWs reflect strong nonaxisymmetric structure from a persistent $m=1$ mode. The coupling between fast MRI and the slower nonaxisymmetric instability growth governs the outcome, with tilt controlling how MRI modifies the global mode. These simulations provide the first self-consistent GRMHD treatment of tilted, self-gravitating BHD systems and support their role as multimessenger sources.

9 pages, 11 figures

References in corpus (22)

• First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. II. UV, Optical, and Near-IR Light Curves and Comparison to Kilonova Models
• Global General Relativistic MHD Simulation of a Tilted Black-Hole Accretion Disk
• Fully General Relativistic Simulations of Black Hole-Neutron Star Mergers
• Relativistic simulations of black hole-neutron star coalescence: the jet emerges
• Black hole-neutron star mergers: effects of the orientation of the black hole spin
• Relativistic magnetohydrodynamics in dynamical spacetimes: A new AMR implementation
• Gravitational waves from the Papaloizou-Pringle instability in black hole-torus systems
• Delayed Radio Flares from a Tidal Disruption Event
• General relativistic simulations of black hole-neutron star mergers: Effects of tilted magnetic fields
• Tilted Disks around Black Holes: A Numerical Parameter Survey for Spin and Inclination Angle
• Alternative possibility of GW190521: Gravitational waves from high-mass black hole-disk systems
• Is OJ 287 a Single Supermassive Black Hole?
• Jet Launching from Merging Magnetized Binary Neutron Stars with Realistic Equations of State
• Gravitational Waves from Disks Around Spinning Black Holes: Simulations in Full General Relativity
• Misaligned magnetized accretion flows onto spinning black holes: Magneto-spin alignment, outflow power, and intermittent jets
• General Relativistic Magnetohydrodynamic Simulations of Accretion Disks Around Tilted Binary Black Holes of Unequal Mass
• Co-precession of a curved jet and compact accretion disk in M87
• Self-gravitating disks around rapidly spinning, tilted black holes: General relativistic simulations
• Integral field spectroscopy with the solar gravitational lens
• Effect of magnetic fields on the dynamics and gravitational wave emission of PPI-saturated self-gravitating accretion disks: simulations in full GR