Observations of the high-redshift Universe with the 21cm hyperfine line of neutral hydrogen
promise to open an entirely new window onto the early phases of cosmic structure formation …

The epoch of reionization probes the state of our universe when the very first stars formed
and ionized the hydrogen atoms in the surrounding medium. Since the epoch has not yet …

We study the evolution of the ionization state of the intergalactic medium (IGM) at the end of
the reionization epoch using moderate-resolution spectra of a sample of 19 quasars at 5.74< …

We introduce 21 cmmc: a parallelized, Monte Carlo Markov Chain analysis tool,
incorporating the epoch of reionization (EoR) seminumerical simulation 21 cmfast. 21 cmmc …

Star-forming galaxies trace cosmic history. Recent observational progress with the NASA
Hubble Space Telescope has led to the discovery and study of the earliest known galaxies …

We used fully cosmological, high-resolution N-body+ smooth particle hydrodynamic (SPH)
simulations to follow the formation of disc galaxies with rotational velocities between 135 …

Galaxies and quasars are thought to provide the bulk of the photons responsible for ionizing
the hydrogen in the intergalactic medium (IGM). We use a large set of hydrodynamical …

ABSTRACT Cosmic Reionization On Computers is a long-term program of numerical
simulations of cosmic reionization. Its goal is to model fully self-consistently (albeit not …

We consider the evolution of the sky-averaged 21-cm background during the early phases of
structure formation. Using simple analytic models, we calculate the thermal and ionization …

Active galactic nuclei (AGN) forming in the early universe are thought to be the primary
source of hard ionizing photons contributing to the reionization of intergalactic helium …