2 papers
astro-ph.GA2025
Faint active galactic nuclei supplied 31-75% of hydrogen-ionizing photons at z>5
Mainak Singha, Sangeeta Malhotra, James Ely Rhoads
The origin of the ionizing photons that completed hydrogen reionization remains debated. Using recent JWST and ground-based surveys at 4.5 <= z <= 6.5, we construct a unified rest-…
astro-ph.IM2025
Evolution of the Ionizing Photon Luminosity Function
Stephan R. McCandliss, Swara Ravindranath, Sangeeta Malhotra +6
Counting the number and brightness of ionizing radiation sources out to a redshift of z ~ 1.2 will revolutionize our understanding of how the ionizing background is created and sus…