The first few 100 Myr at z> 10 mark the last major uncharted epoch in the history of the
universe, where only a single galaxy (GN-z11 at z≈ 11) is currently spectroscopically …

Abstract Surveys with the James Webb Space Telescope (JWST) have discovered
candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have …

We present a detailed stellar population analysis of 11 bright (H< 26.6) galaxies at z= 9–11
(three spectroscopically confirmed) to constrain the chemical enrichment and growth of …

Inference of the physical properties of stellar populations from observed photometry and
spectroscopy is a key goal in the study of galaxy evolution. In recent years, the quality and …

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 use deep imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to
study the evolution of the ionizing photon production efficiency, ξion. We estimate ξion for a …

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 …

Aims. We extend the analysis of a physical model within the standard cosmology that
robustly predicts a high star-formation efficiency (SFE) in massive galaxies at cosmic dawn …

The recent reported discovery of a low-mass z= 5.2 and an intermediate-mass z= 7.3
quenched galaxy with JWST/NIRSpec is the first evidence of halted star formation above z≈ …