Measuring the Mean Free Path of HI Ionizing Photons at $3.2\le z\le 4.6$ with DESI Y1 Quasars

Anning Gao, Jason X. Prochaska, Zheng Cai +31

The mean free path of ionizing photons ($\hat{I}{»}_{\mathrm{mfp}}^{912}$) in the intergalactic medium (IGM) is a crucial quantity in modelling the ionization state of IGM and the extragalac…