activity
20242026
collaborators

18 papers

astro-ph.GA2026

MEGATRON: The environments of Population III stars at Cosmic Dawn and their connection to present day galaxies

Anatole Storck, Harley Katz, Julien Devriendt +7

We present results of Pop. III formation in the MEGATRON suite of simulations, which self-consistently follows radiation and non-equilibrium chemistry, and resolves gas at near-pc…

astro-ph.GA2026

CALIMA: On-the-fly dust and PAH evolution for radiation-hydrodynamics galaxy formation simulations

Francisco Rodríguez Montero, Yohan Dubois, Harley Katz +2

Dust grains and polycyclic aromatic hydrocarbons (PAHs) actively contribute to the thermodynamics, chemistry, and radiative state of the interstellar medium (ISM), yet most ISM mod…

astro-ph.GA2026

MEGATRON: Disentangling Physical Processes and Observational Bias in the Multi-Phase ISM of High-Redshift Galaxies

Nicholas Choustikov, Harley Katz, Alex J. Cameron +10

Now detected out to redshifts of , the rest-frame ultraviolet and optical spectra of galaxies encode numerous physical properties of the interstellar medium (ISM). Accu…

astro-ph.GA2026

Downsizing does not extend to dwarf galaxies: identifying the stellar mass regimes shaped by supernova and AGN feedback

Ilin Lazar, Sugata Kaviraj, Garreth Martin +10

We explore how the fraction of red (quenched) galaxies varies in the dwarf galaxy regime (10^7 MSun < Mstar < 10^9.5 MSun), using a mass-complete sample of ~5900 dwarfs at z<0.15,…

astro-ph.CO2025

The Velocity Field Olympics: Assessing velocity field reconstructions with direct distance tracers

Richard Stiskalek, Harry Desmond, Julien Devriendt +5

The peculiar velocity field of the local Universe provides direct insights into its matter distribution and the underlying theory of gravity, and is essential in cosmological analy…

astro-ph.GA2025

The dwarf stellar mass function in different environments and the lack of a generic missing dwarfs problem in ΛCDM

Ilin Lazar, Sugata Kaviraj, Garreth Martin +9

We combine deep photometric data in the COSMOS and XMM-LSS fields with high-resolution cosmological hydrodynamical simulations to explore two key questions: (1) how does the galaxy…