Black hole accretion simulations show a universal inward mass flow scaling, about r^0.66 in magnetically arrested disks and r^0.87 in rocking accretion disks, with a repeating cycle that may set jet duty cycles.
Galactic-scale Feeding Reveals Warped Hypermagnetized Multiphase Circumbinary Accretion Around Supermassive Black Hole Binaries
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abstract
Supermassive black hole (SMBH) binaries in gaseous and stellar environments are prime targets for next-generation space-based gravitational wave detectors. Yet, realistic accretion conditions under which these binary systems evolve are not fully understood. In this work, we demonstrate the hypermagnetized multi-phase nature of the surrounding accretion flow formed by large-scale feeding from a galaxy background. Our simulations indicate that the hypermagnetized circumbinary disk is eccentric and warped, hosting a hot gas core for a parsec-scale separated binary. We also observe collimated bipolar magnetic tower-like outflows launched from each SMBH.
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Universal Radial Scaling of Large-Scale Black Hole Accretion for Magnetically Arrested And Rocking Accretion Disks
Black hole accretion simulations show a universal inward mass flow scaling, about r^0.66 in magnetically arrested disks and r^0.87 in rocking accretion disks, with a repeating cycle that may set jet duty cycles.