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 launch of the James Webb Space Telescope (JWST) in late 2021 marks a new start for
studies of galaxy formation at high redshift (z≳ 6) during the era of cosmic reionization …

The identification of sources driving cosmic reionization, a major phase transition from
neutral hydrogen to ionized plasma around 600–800 Myr after the Big Bang,–, has been a …

We present observations with the Cosmic Origins Spectrograph (COS) onboard the Hubble
Space Telescope of five star-forming galaxies at redshifts in the range 0.2993–0.4317 and …

Determinations of the ultraviolet (UV) luminosity function of active galactic nuclei (AGN) at
high redshifts are important for constraining the AGN contribution to reionization and …

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 …

We report the detection of the Lyman continuum (LyC) radiation of the compact star-forming
galaxy (SFG) J1154+ 2443 observed with the Cosmic Origins Spectrograph (COS) onboard …

We present the photometric properties of galaxies in the First Light And Reionization Epoch
Simulations (FLARES). The simulations trace the evolution of galaxies in a range of …

ABSTRACT Cosmic Dawn II (CoDa II) is a new, fully coupled radiation-hydrodynamics
simulation of cosmic reionization and galaxy formation and their mutual impact, to redshift z< …

We explore scenarios for reionizing the intergalactic medium with low galaxy ionizing
photon escape fractions. We combine simulation-based halo mass–dependent escape …