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Supermassive black holes from runaway mergers and accretion in nuclear star clusters

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arxiv 2404.11676 v2 pith:DSNKZ5LE submitted 2024-04-17 astro-ph.HE gr-qc

Konstantinos Kritos , Emanuele Berti , Joseph Silk This is my paper
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keywords blacknuclearstaraccretionclusterclustersholeholes
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Rapid formation of supermassive black holes occurs in dense nuclear star clusters that are initially gas-dominated. Stellar-mass black hole remnants of the most massive cluster sink into the core, where a massive runaway black hole forms as a consequence of combined effects of repeated mergers and Eddington-limited gas accretion. The associated gravitational wave signals of high-redshift extreme mass-ratio inspirals are a unique signature of the nuclear star cluster scenario.

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Cited by 1 Pith paper

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  1. Searching for intermediate mass ratio binary black hole mergers in the third observing run of LIGO-Virgo-KAGRA

    gr-qc 2025-07 conditional novelty 6.0 of 10

    No confident intermediate mass ratio inspirals are found in LIGO-Virgo-KAGRA O3 data, yielding 90% upper limits of roughly 30-1000 Gpc^-3 yr^-1 on their local merger rate and showing higher modes boost search volume b...

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