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Arxiv: High-redshift JWST massive galaxies and the initial clustering of supermassive primordial black holes Published: 7/22/2024 7:37:51 PM Updated: 7/22/2024 7:37:51 PM

Paper abstract: In this paper, we show that the initial clustering of supermassive primordialblack holes (SMPBHs) beyond a Poisson distribution can efficiently enhance thematter power spectrum, and thus the halo mass function. As a result, thepopulation of initially clustered SMPBHs with M_{\rm PBH}~ 10^9M_\odot andthe fraction of energy density f_{\rm PBH}~ 10^{-3} (consistent withcurrent constraints on SMPBHs) has the potential to naturally explainhigh-redshift massive galaxies observed by the James Webb Space Telescope.