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

Autor:	Huang, Hai-Long, Jiang, Jun-Qian, Piao, Yun-Song
Rok vydání:	2024
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - Astrophysics of Galaxies General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
Popis:	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 $M_{\rm PBH}\sim 10^9M_\odot$ and the fraction of energy density $f_{\rm PBH}\sim 10^{-3}$ (consistent with current constraints on SMPBHs) has the potential to naturally explain high-redshift massive galaxies observed by the James Webb Space Telescope. Comment: 8 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.15781 Zobrazit plný text záznamu View this record from Arxiv