James Webb Space Telescope Feed Post

Harvard ADS: High-redshift JWST massive galaxies and the initial clustering of supermassive primordial black holes

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