Galaxy formation is at the heart of our understanding of cosmic evolution. Although there is a
consensus that galaxies emerged from the expanding matter background by gravitational …

The bulk of cosmic matter resides in a dilute reservoir that fills the space between galaxies,
the intergalactic medium (IGM). The history of this reservoir is intimately tied to the cosmic …

ABSTRACT The Feedback In Realistic Environments (FIRE) project explores feedback in
cosmological galaxy formation simulations. Previous FIRE simulations used an identical …

We measure escape fractions, f esc, of ionizing radiation from galaxies in the sphinx suite of
cosmological radiation-hydrodynamical simulations of reionization, resolving haloes with …

The protagonists of the last great phase transition of the universe—cosmic reionization—
remain elusive. Faint star-forming galaxies are leading candidates because they are found …

The ionizing photon escape fraction [Lyman continuum (LyC) f esc] of star-forming galaxies
is the single greatest unknown in the reionization budget. Stochastic sightline effects prohibit …

We present a new flexible Bayesian framework for directly inferring the fraction of neutral
hydrogen in the intergalactic medium (IGM) during the Epoch of Reionization (EoR, z∼ 6 …

Increasingly, uncertainties in predictions from galaxy formation simulations (at sub-Milky
Way masses) are dominated by uncertainties in stellar evolution inputs. In this paper, we …

We use high-resolution cosmological zoom-in simulations from the Feedback in Realistic
Environment (FIRE) project to study the galaxy mass–metallicity relations (MZR) from z= 0 …

The relationship between stellar populations and the ionizing flux with which they irradiate
their surroundings has profound implications for the evolution of the intergalactic medium …