Use the Lyman-alpha forest flux power above z = 5 as a clock for the patchiness of reionization.

Novelty checks

12 September 2026, N2 prior work linked, J. Lindqvist. Two earlier papers use the high-redshift flux power in this way. Prior work Sato, K. (2019) (invented reference for the example), Uses flux power at z of 5 to 6 to constrain the timing of reionization.. Prior work Adeyemi, F. and Roth, L. (2022) (invented reference for the example), Fits patchy reionization models to the same statistic..