Loss-cone limited dark matter accretion onto early black hole seeds becomes supply-limited after phase-space depletion, yielding negligible sustained growth in standard NFW halos even with optimistic refilling.
Massive Black Hole Seeds
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Axion dark matter decay injects 1-13.6 eV photons that suppress H2, enabling atomic cooling halos and direct collapse black hole seeds for axion masses 24.5-26.5 eV and couplings down to 4e-12/GeV.
Semi-analytical models show AGN disks produce repeated BBH mergers with a high-mass tail beyond the pair-instability gap, more efficiently at low viscosity, with spin and mass-ratio signatures that can match events like GW190521.
citing papers explorer
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Loss-Cone-Limited Dark Matter Accretion onto Early Black Hole Seeds
Loss-cone limited dark matter accretion onto early black hole seeds becomes supply-limited after phase-space depletion, yielding negligible sustained growth in standard NFW halos even with optimistic refilling.
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Direct Collapse Black Hole Candidates from Decaying Dark Matter
Axion dark matter decay injects 1-13.6 eV photons that suppress H2, enabling atomic cooling halos and direct collapse black hole seeds for axion masses 24.5-26.5 eV and couplings down to 4e-12/GeV.
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AGN-driven BBH mergers: Black hole populations and hierarchical growth across the AGN parameter space
Semi-analytical models show AGN disks produce repeated BBH mergers with a high-mass tail beyond the pair-instability gap, more efficiently at low viscosity, with spin and mass-ratio signatures that can match events like GW190521.