The origins of Lyman continuum (LyC) photons responsible for the reionization of the
universe are as of yet unknown and highly contested. Detecting LyC photons from the Epoch …

The protagonists of the last great phase transition of the universe—cosmic reionization—
remain elusive. Faint star-forming galaxies are leading candidates because they are found …

We study the ionizing photon production efficiency at the end of the Epoch of Reionization
(z∼ 5.4− 6.6) for a sample of 30 Ly α emitters. This is a crucial quantity to infer the ionizing …

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 …

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 …

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 …

Observations of reionization-era analogues at z∼ 3 are a powerful tool for constraining
reionization. Rest-ultraviolet observations are particularly useful, in which both direct and …

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 investigate the burstiness of star formation and the ionizing efficiency of a large sample
of galaxies at 0.7< z< 1.5 using HST grism spectroscopy and deep ultraviolet (UV) imaging …

We present results from the LymAn Continuum Escape Survey (LACES), a Hubble Space
Telescope (HST) program designed to characterize the ionizing radiation emerging from a …