78 citations · 187 across the 15 of their papers we have counts for
5 papers · 1 filter
Smoluchowski Coagulation Equation and the Evolution of Primordial Black Hole Clusters
Borui Zhang, Wei-Xiang Feng, Haipeng An
In arXiv:2507.07171, we demonstrate that the high-redshift supermassive black holes in the so-called "little red dots" discovered by James Webb Space Telescope (JWST) can be explai…
Little Red Dots from Small-Scale Primordial Black Hole Clustering
Borui Zhang, Wei-Xiang Feng, Haipeng An
The James Webb Space Telescope (JWST) observations have identified a class of compact galaxies at high redshifts (), dubbed "little red dots" (LRDs). The…
Gravitational Waves from Primordial Black Hole Dark Matter Spikes
Wei-Xiang Feng, Simeon Bird, Hai-Bo Yu
The origin of the binary black hole mergers observed by LIGO--Virgo--KAGRA remains an open question. We calculate the merger rate from primordial black holes (PBHs) within the dens…
Dynamical Instability of Collapsed Dark Matter Halos
Wei-Xiang Feng, Hai-Bo Yu, Yi-Ming Zhong
A self-interacting dark matter halo can experience gravothermal collapse, resulting in a central core with an ultrahigh density. It can further contract and collapse into a black h…
Seeding Supermassive Black Holes with Self-Interacting Dark Matter: A Unified Scenario with Baryons
Wei-Xiang Feng, Hai-Bo Yu, Yi-Ming Zhong
Observations show that supermassive black holes (SMBHs) with a mass of exist when the Universe is just of its current age. We propose a scenario where a se…