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Direct Collapse Supermassive Black Holes from Ultralight Dark Matter
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We study the possibility that parametric resonant excitation of photons in an ultralight dark matter halo could generate the required flux of Lyman-Werner photons to allow the direct collapse formation of supermassive black hole seeds.
Forward citations
Cited by 3 Pith papers
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Numerical Backreaction and Finite-Time Energy Transfer in Post-Recombination Magnetogenesis from Ultralight Dark Matter
Numerical simulations of post-recombination axion dark matter show that for dimensionless coupling α_eff ≳ 0.39, over half the dark-matter energy is transferred into gauge-field modes before back-reaction stops the resonance.
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A Promise for the JWST era: Massive black holes directly collapsed from wave dark matter haloes, and Star formation in and around their accretion flows
Wave dark matter haloes could collapse directly into massive black holes before galaxies formed, explaining JWST-observed over-massive black holes, early massive galaxies, and rapid metal enrichment.
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A Non-Inflationary Axion and ALP Misalignment Mechanism
A thermally mediated, Planck-suppressed symmetry breaking potential can supply the initial axion misalignment that inflationary cosmology normally provides, allowing late-time coherent oscillations without inflation.
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