Method
NumCosmoRecombtau_drag
Declaration [src]
gdouble
nc_recomb_tau_drag (
NcRecomb* recomb,
NcHICosmo* cosmo,
const gdouble lambda
)
Description [src]
Computes the drag depth, $$\tau_d \equiv \int_0^\lambda \mathrm{d}\lambda R^{-1} \frac{n_e \sigma_T}{1+z},$$ where $R = \frac{3\bar{\rho}b}{4\bar{\rho}\gamma}$.
Parameters
cosmo-
Type:
NcHICosmoA
NcHICosmo.The data is owned by the caller of the method. lambda-
Type:
const gdouble$\lambda = - \ln(1+z)$.