Motivated by the current constraints on the epoch of reionisation from recent cosmic microwave background observations, ionising background measurements of star-forming galaxies, and low redshifts line-of-sight probes, we propose a new data-motivated parameterisation of the history of the average ionisation fraction. This parameterisation describes a flexible redshift-asymmetric reionisation process in two regimes that is capable of fitting all the current constraints.
@article{arxiv.1509.02785,
title = {A new parameterization of the reionisation history},
author = {Marian Douspis and Nabila Aghanim and Stéphane Ilić and Mathieu Langer},
journal= {arXiv preprint arXiv:1509.02785},
year = {2015}
}