225 citations · 2.1k across the 36 of their papers we have counts for
26 papers · 1 filter
Explaining the high nitrogen abundances observed in high-z galaxies via population III stars of a few thousand solar masses
Devesh Nandal, John A. Regan, Tyrone E. Woods +3
The chemical enrichment of the early Universe is a crucial element in the formation and evolution of galaxies, and Population III (PopIII) stars must play a vital role in this proc…
Heavy Black Hole Seed Formation in High-z Atomic Cooling Halos
Lewis R. Prole, John A. Regan, Simon C. O. Glover +3
Halos with masses in excess of the atomic limit are believed to be ideal environments in which to form heavy black hole seeds with masses above 10^3 Msun. In cases where the H_2 fr…
Population III star formation: multiple gas phases prevent the use of an equation of state at high densities
Lewis R. Prole, Paul C. Clark, Felix D. Priestley +2
Advanced primordial chemistry networks have been developed to model the collapse of metal-free baryonic gas within the gravitational well of dark matter (DM) halos and its subseque…
No Tension: JWST Galaxies at Consistent with Cosmological Simulations
Joe McCaffrey, Samantha Hardin, John Wise +1
Recent observations by JWST have uncovered galaxies in the very early universe via the JADES and CEERS surveys. These galaxies have been measured to have very high stellar masses w…
Massive Star Formation in Overdense Regions of the Early Universe
John Regan
Both the origin of, and the population demographics of, massive black holes (MBHs) remains an open question in modern day astrophysics. Here we introduce the BlackDemon suite of co…
Observational Signatures of Massive Black Hole Progenitor Pathways: Could Leo I a Smoking Gun?
John A. Regan, Fabio Pacucci, M. J. Bustamante-Rosell
Observational evidence is mounting regarding the population demographics of Massive Black Holes (MBHs), from the most massive cluster galaxies down to the dwarf galaxy regime. Howe…