wcosmo.wcosmo.absorption_distance#
- wcosmo.wcosmo.absorption_distance(z, Om0, w0=-1, method='pade')[source]#
Compute the absorption distance using an analytic integral of the Pade approximation.
\[d_{A} = \int_{0}^{z} \frac{dz' (1 + z')^2}{E(z'; \Omega_{m,0}, w_0)}\]- Parameters:
- z: array_like
Redshift
- Om0: array_like
The matter density fraction
- w0: array_like
The (constant) equation of state parameter for dark energy
- Returns:
- absorption_distance: array_like
The absorption distance in Mpc