darkhistory.history.reionization.photoion_rate

darkhistory.history.reionization.photoion_rate(species, method='Puchwein')

Photoionization rate.

Parameters:

species : {‘HI’, ‘HeI’, ‘HeII’}

Relevant species.

method : {None, ‘Puchwein’, ‘early’, ‘middle’, ‘late’}

Model to use for photoionization.

Returns

——-

function

Interpolating function which takes redshift as an argument, and returns the photoionization rate of the species in s^-1. See 1801.04931, and 1607.04218 for early/middle/late.