wcosmo.wcosmo.differential_comoving_volume#
- wcosmo.wcosmo.differential_comoving_volume(z, H0, Om0, w0=-1, method='pade')[source]#
Compute the differential comoving volume element.
\[\frac{dV_{C}}{dz} = d_C^2(z; H_0, \Omega_{m,0}, w_0) d_H E(z; \Omega_{m, 0}, w_0)\]- Parameters:
- z: array_like
Redshift
- H0: array_like
The Hubble constant in km/s/Mpc
- Om0: array_like
The matter density fraction
- w0: array_like
The (constant) equation of state parameter for dark energy
- Returns:
- dVc: array_like
The differential comoving volume element in \(\rm{Gpc}^3\)