Accretion induced black hole spin up revised by numerical GR MHD simulations

Abstract

We investigate the accretion induced spin up of the black hole via numerical simulations. Our method is based on general-relativistic magneto-hydrodynamics of the slowly-rotating flows in the Kerr metric, where possibly transonic shock fronts may form. We account for the changing black hole mass and spin during accretion which enforces dynamical evolution of the space-time metric. We first study non-magnetized flows with shocks, and we also include magnetic field endowed in the gas. The aim of this study is to verify whether the high mass black holes may be produced with large spins, even though at birth the collapsars might have contained slowly, or moderately spinning cores. In this way, we put constraints on the content of angular momentum in the collapsing massive stars. Our studies are also showing that shock fronts and magnetic fields may halt accretion and limit the black hole spin-up in the exploding supernovae.

27 pages, 18 color figures. ApJ in press

References in corpus (18)

• Binary interaction dominates the evolution of massive stars
• Pre-Supernova Evolution of Massive Single and Binary Stars
• Theory of Core-Collapse Supernovae
• Properties and astrophysical implications of the 150 Msun binary black hole merger GW190521
• Slowing the Spins of Stellar Cores
• Distinguishing Spin-Aligned and Isotropic Black Hole Populations With Gravitational Waves
• The cosmic merger rate of stellar black hole binaries from the Illustris simulation
• The Origin of Black Hole Spin in Galactic Low-Mass X-ray Binaries
• An alternative interpretation of GW190412 as a binary black hole merger with a rapidly spinning secondary
• Constraining the Black Hole Initial Mass Function with LIGO/VIRGO Observations
• Shocks in the relativistic transonic accretion with low angular momentum
• Oscillating shocks in the low angular momentum flows as a source of variability of accreting black holes
• Effects of adiabatic index on the sonic surface and time variability of low angular momentum accretion flows
• Formation pathway for lonely stripped-envelope supernova progenitors: implications for Cassiopeia A
• On the maximum stellar rotation to form a black hole without an accompanying luminous transient
• Nonaxisymmetric Effects in the Black Hole Accretion Inviscid Hydrodynamics: Formation and Evolution of a Tilted Torus
• Cosmic Gamma Ray Bursts
• Effects of self-gravity of the accretion disk around rapidly rotating black hole in long GRBs

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