10 citations · 51 across the 12 of their papers we have counts for
13 papers
Hierarchical Black Hole Mergers at High Redshift: Predictions for LISA and LGWA from SEEDZ
Daxal H. Mehta, Lewis R. Prole, John A. Regan +13
We investigate the hierarchical assembly of black holes (BHs) in the early Universe using the next-generation SEEDZ cosmological zoom-in simulations. Our suite follows two independ…
SEEDZ: Rapid Galaxy Assembly as a Pathway to Supermassive Stars, Dense Stellar Environments and Massive Black Hole Seeds
Lewis R. Prole, John A. Regan, Daxal Mehta +14
We investigate the assembly history of early galaxies in the SEEDZ hydrodynamic simulations, to investigate the high inflow rates believed to be required for the formation of super…
Black Hole Feedback, Galaxy Quenching and Outflows at Cosmic Dawn: Analysis of the SEEDZ Simulations
Lewis R. Prole, John A. Regan, Daxal Mehta +13
Here we analyse the growth and feedback effects of massive black holes (MBHs) in the SEEDZ simulations. The most massive black holes grow to masses of M by $z=…
Growth of Light Seed Black Holes in the Early Universe
Daxal H. Mehta, John A. Regan, Lewis Prole
Observations from the James Webb Space Telescope (JWST) have uncovered supermassive black holes (SMBHs) with masses exceeding at redshifts , posing…
The SEEDZ Simulations: Methodology and First Results on Massive Black Hole Seeding and Early Galaxy Growth
Lewis R. Prole, John A. Regan, Daxal Mehta +13
Here we introduce the SEEDZ simulations, a suite of cosmological hydrodynamic simulations exploring the formation and growth of the first massive black holes in the Universe. SEEDZ…
Beyond No Tension: JWST z > 10 Galaxies Push Simulations to the Limit
Joe McCaffrey, Samantha Hardin, John H. Wise +1
JWST has identified some of the Universe's earliest galaxies, repeatedly pushing the frontier to ever higher redshifts and stellar masses. The presence of such extreme galaxies at…
Primordial black holes in cosmological simulations: growth prospects for supermassive black holes
Lewis R. Prole, John A. Regan, Daxal Mehta +2
It has long been suggested that a fraction of the dark matter in the Universe could exist in the form of primordial black holes (PBHs) that have existed since the radiation dominat…
Predicting the number density of heavy seed massive black holes due to an intense Lyman-Werner field
Hannah O'Brennan, John A. Regan, John Brennan +5
The recent detections of a large number of candidate active galactic nuclei at high redshift (i.e. ) has increased speculation that heavy seed massive black hole forma…
Hawking Radiation from non-evaporating primordial black holes cannot enable the formation of direct collapse black holes
Jonathan Regan, Marios Kalomenopoulos, Kelly Kosmo O'Neil
The formation of supermassive black holes (SMBHs) in the early Universe is a subject of significant debate. In this study, we examine whether non-evaporating primordial black holes…
Halo Mergers Enhance the Growth of Massive Black Hole Seeds
Lewis R. Prole, John A. Regan, Daniel J. Whalen +2
High redshift observations of 10 M supermassive black holes (SMBHs) at and `Little Red Dots' that may host overmassive black holes at suggests the exist…
A Heavy Seed Black Hole Mass Function at High Redshift -- Prospects for LISA
Joe McCaffrey, John Regan, Britton Smith +3
The advent of new and near-future observatories probing the earliest epochs of the Universe has opened the opportunity to investigate the formation and growth of the first massive…
Growth of Light-Seed Black Holes in Gas-Rich Galaxies at High Redshift
Daxal Mehta, John A. Regan, Lewis Prole
Recent observations by the James Webb Space Telescope confirm the existence of massive black holes ( ) beyond the redshift of . However, their formatio…
Halo mass functions at high redshift
Hannah O'Brennan, John A. Regan, Chris Power +3
Recent JWST observations of very early galaxies, at , have led to claims that tension exists between the sizes and luminosities of high-redshift galaxies and wha…