26 papers
How to raise a supermassive black hole: interpreting early JWST AGN with the AESOPICA simulations
Sophie Koudmani, Jan Scholtz, Anthony J. Taylor +11
The paper uses the AESOPICA suite of cosmological simulations, varying black hole seed masses and accretion physics, to interpret the abundance and apparent overmassiveness of earl…
Outflows in super-Eddington quasars drive clumpy circumgalactic medium and extended H nebulae at
Lucas Tortora, Tiago Costa, Debora Sijacki +1
The discovery of gargantuan black holes with masses exceeding a billion solar masses at suggests rapid black hole growth and significant energy input into their host ga…
The Azahar Project: Non-Thermal Physics Drives Star Formation Burstiness and the Evolution of the UV Luminosity Density at Cosmic Dawn
Sergio Martin-Alvarez, Risa H. Wechsler, Debora Sijacki
JWST observations, which have pushed the discovery and characterization of galaxies to cosmic dawn, have revealed significant deficiencies in state-of-the-art galaxy formation simu…
The birth of the intracluster medium: the evolution of multiphase gas and Lyman- haloes in a simulated protocluster
Jake S. Bennett, Aaron Smith, Fabrizio Arrigoni-Battaia +3
The paper uses a high‑resolution cosmological zoom‑in simulation of a massive protocluster to study how multiphase gas and Lyman‑α/ H‑α haloes evolve from redshift ~4.4 to 2.7, hig…
Comparing gravitational wave background predictions from cosmological simulations to pulsar timing observations
Stephanie Buttigieg, Debora Sijacki, Christopher J. Moore +2
The recent detection of a gravitational wave background (GWB) by pulsar timing arrays (PTAs) may represent the first evidence of gravitational waves from merging supermassive black…
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…