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arXiv · 2504.03874

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

Hai-Yang Wang·Minghao Guo·Elias R. Most·Philip F. Hopkins·Aretaios Lalakos
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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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Hai-Yang Wang, Minghao Guo, Elias R. Most, Philip F. Hopkins, Aretaios Lalakos. 2025-04-04. Galactic-scale Feeding Reveals Warped Hypermagnetized Multiphase Circumbinary Accretion Around Supermassive Black Hole Binaries. https://arxiv.org/abs/2504.03874

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