Key points are not available for this paper at this time.
Aims. The demographics of the production and escape of ionizing photons from UV-faint early galaxies is a key unknown that has hindered attempts to discover the primary drivers of reionization. With the advent of JWST, it is finally possible to observe the rest-frame optical nebular emission from individual sub- L * z > 3 galaxies to measure the production rate of ionizing photons, ξ ion . Methods. Here we study a sample of 370 z ∼ 3 − 7 galaxies spanning −23 0.5) in our sample based on their photometric properties, even amongst the Lyman-alpha-selected galaxies. Conclusions. This work demonstrates that considering the full distribution of ξ ion across galaxy properties is important for assessing the primary drivers of reionization.
Prieto-Lyon et al. (2023) studied this question.