SAZERAC 2020 | 5B | Xiangcheng Ma

On the escape of ionizing photons from high-redshift galaxies: insight from realistic cosmological simulations Xiangcheng Ma UC Berkeley Using cosmological zoom-in simulations of z greater than 5 galaxies with realistic ISM and feedback models from the FIRE project, I will talk about the escape fraction of ionizing photons from these simulated galaxies and its dependence on galaxy mass and redshift. I will identify the key ISM conditions and feedback physics that governs the escape of ionizing photons. With explicitly resolved proto-globular cluster (GC) formation in these simulations, I will also discuss the contribution of GCs to cosmic reionization.