darkhistory.history.reionization.coll_exc_cooling_rate¶
-
darkhistory.history.reionization.
coll_exc_cooling_rate
(xHII, xHeII, xHeIII, T_m, rs)¶ Collisional excitation cooling rate.
Parameters: - xHII : float
n_HII/n_H.
- xHeII : float
n_HeII/n_H.
- xHeIII : float
n_HeIII/n_H.
- T_m : float
Matter temperature in eV.
- rs : float
Redshift (1+z).
Returns: - float
Collisional excitation cooling rate in eV s^-1. See astro-ph/0607331.