Method

NumCosmoRecombget_tau_drag_z

Declaration [src]

gdouble
nc_recomb_get_tau_drag_z (
  NcRecomb* recomb,
  NcHICosmo* cosmo
)

Description [src]

Calculates the value of $z(\lambda)$ where the optical depth times $R$ (drag depth) [Eq. \eqref{eq:def:tau}] is equal to one, i.e., $\tau_\mathrm{drag}(\lambda^\star) = 1$.

Parameters

cosmo

Type: NcHICosmo

A NcHICosmo.

The data is owned by the caller of the method.

Return value

Type: gdouble

$z(\lambda^\star)$.