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 …

Imaging the Universe during the first hundreds of millions of years remains one of the
exciting challenges facing modern cosmology. Observations of the redshifted 21 cm line of …

We present new upper limits on the volume-weighted neutral hydrogen fraction,, at z∼ 5–6
derived from spectroscopy of bright quasars. The fraction of the Lyα and Lyβ forests that is …

Abstract Recently, the Hydrogen Epoch of Reionization Array (HERA) has produced the
experiment's first upper limits on the power spectrum of 21 cm fluctuations at z∼ 8 and 10 …

The properties of the first galaxies, expected to drive the Cosmic Dawn and the Epoch of
Reionization, are encoded in the 3D structure of the cosmic 21-cm signal. Parameter …

Starlight from galaxies plays a pivotal role throughout the process of cosmic reionization. We
present the statistics of dwarf galaxy properties at z> 7 in haloes with masses up to 109 M⊙ …

The transformation of cold neutral intergalactic hydrogen into a highly ionized warm plasma
marks the end of the cosmic dark ages and the beginning of the age of galaxies. The details …

The Epoch of Reionization (EoR) represents a milestone in the evolution of our Universe.
Star-forming galaxies that existed during the EoR likely emitted a significant fraction (~ 5 …

By definition, Population III stars are metal-free, and their protostellar collapse is driven by
molecular hydrogen cooling in the gas phase, leading to large characteristic masses …

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