Early data from the James Webb Space Telescope (JWST) have revealed a bevy of high-
redshift galaxy candidates with unexpectedly high stellar masses. An immediate concern is …

Determining when and how the first galaxies reionised the intergalactic medium promises to
shed light on both the nature of the first objects and the cosmic history of baryons. Towards …

Recent JWST observations suggest an excess of z≳ 10 galaxy candidates above most
theoretical models. Here, we explore how the interplay between halo formation time-scales …

We introduce serra, a suite of zoom-in high-resolution (, at z= 7.7) cosmological simulations
including non-equilibrium chemistry and on-the-fly radiative transfer. The outputs are post …

ABSTRACT JWST observations have revealed a population of galaxies bright enough that
potentially challenge standard galaxy formation models in the Λ cold dark matter (ΛCDM) …

Recent discoveries of a significant population of bright galaxies at cosmic dawn $\left
(z\gtrsim 10\right) $ have enabled critical tests of cosmological galaxy formation models. In …

We present a new determination of the evolving galaxy ultraviolet (UV) luminosity function
(LF) over the redshift range using a combination of several major Cycle-1 JWST imaging …

This paper introduces C olossus, a public, open-source python package for calculations
related to cosmology, the large-scale structure (LSS) of matter in the universe, and the …

We present an analysis of all prime HST legacy fields spanning> 800 arcmin 2 in the search
for z∼ 10 galaxy candidates and the study of their UV luminosity function (LF). In particular …

We present new stellar mass functions at z∼ 6, z∼ 7, z∼ 8, z∼ 9 and, for the first time, z∼
10, constructed from∼ 800 Lyman-break galaxies previously identified over the eXtreme …