Evidence for Large-Scale Fluctuations in the Metagalactic Ionizing Background Near Redshift Six

George D. Becker, Frederick B. Davies, Steven R. Furlanetto +3

The observed scatter in intergalactic Lyman-$\alpha$ opacity at $z\lesssim 6$ requires large-scale fluctuations in the neutral fraction of the intergalactic medium (IGM) after the expe…