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Galactic-scale Feeding Reveals Warped Hypermagnetized Multiphase Circumbinary Accretion Around Supermassive Black Hole Binaries

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arxiv 2504.03874 v1 pith:NC4N7FPI submitted 2025-04-04 astro-ph.HE astro-ph.GA

Hai-Yang Wang , Minghao Guo , Elias R. Most , Philip F. Hopkins , Aretaios Lalakos This is my paper · ORCID
classification astro-ph.HEastro-ph.GA
keywords accretionhypermagnetizedbinariesbinaryblackcircumbinaryfeedinghole
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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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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Universal Radial Scaling of Large-Scale Black Hole Accretion for Magnetically Arrested And Rocking Accretion Disks

    astro-ph.HE 2025-05 conditional novelty 7.0 of 10

    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.

  2. $\textit{BMAD}$-Circumbinary Magnetically Arrested Disks around Stellar or Black Hole Binaries: Hot Accretion Flows, Disk Properties, and Angular Momentum Transfer

    astro-ph.HE 2025-08 conditional novelty 6.0 of 10

    Circumbinary accretion disks can enter a magnetically arrested state, and in weakly cooled or adiabatic regimes the resulting magnetic flux eruptions may drive the binary orbit to shrink.

  3. Idealized Global Models of Accretion Disks with Strong Toroidal Magnetic Fields

    astro-ph.HE 2025-05 conditional novelty 6.0 of 10

    A zero-net-vertical-flux accretion disk with a strong toroidal magnetic field settles into a state with midplane magnetic and gas pressures comparable, and accretion stress alpha about 0.1, when the gas scale height i...

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