Reference

[Introduction to the reference.]

H(z, /)	Hubble parameter \(H(z)\) in km s-1 Mpc-1.
H0	Hubble parameter at redshift 0 in km s-1 Mpc-1.
H_over_H0(z, /)	Standardised Hubble function \(E(z) = H(z)/H_0\).
Neff	Effective number of neutrino species.
Omega_b(z, /)	Redshift-dependent baryon density parameter.
Omega_b0	Omega baryon; the baryon density/critical density at z=0.
Omega_de(z, /)	Redshift-dependent dark energy density parameter.
Omega_de0	Omega dark energy; the dark energy density/critical density at z=0.
Omega_dm(z, /)	Redshift-dependent dark matter density parameter.
Omega_dm0	Omega dark matter; the dark matter density/critical density at z=0.
Omega_gamma(z, /)	Redshift-dependent photon density parameter.
Omega_gamma0	Omega gamma; the photon density/critical density at z=0.
Omega_k(z, /)	Redshift-dependent curvature density parameter.
Omega_k0	Omega curvature; the effective curvature density/critical density at z=0.
Omega_m(z, /)	Redshift-dependent matter density parameter.
Omega_m0	Omega matter; the matter density/critical density at z=0.
Omega_nu(z, /)	Redshift-dependent neutrino density parameter.
Omega_nu0	Omega neutrino; the neutrino density/critical density at z=0.
Omega_tot(z, /)	Redshift-dependent total density parameter.
Omega_tot0	Omega total; the total density/critical density at z=0.
T_cmb(z, /)	CMB temperature in K at redshift z.
T_cmb0	CMB temperature in K at z=0.
age(z, /)	Age of the universe at redshift z in Gyr.
angular_diameter_distance(...)	Angular diameter distance \(d_A\) in Mpc.
comoving_distance(...)	Comoving line-of-sight distance \(d_c\) in Mpc.
comoving_volume(...)	Comoving volume \(V_c\) in Mpc3.
critical_density(z, /)	Redshift-dependent critical density in Msol Mpc-3.
critical_density0	Critical density at z = 0 in Msol Mpc-3.
differential_comoving_volume(z, /)	Differential comoving volume in Mpc3 per steradian.
hubble_distance	Hubble distance in Mpc.
hubble_time	Hubble time in Gyr.
lookback_distance(...)	Lookback distance \(d_T\) in Mpc.
lookback_time(-> ~cosmology.api._array_api.Array)	Lookback time in Gyr.
luminosity_distance(...)	Redshift-dependent luminosity distance \(d_L\) in Mpc.
m_nu	Neutrino mass(es) in eV.
proper_distance(...)	Proper distance \(d\) in Mpc.
proper_time(-> ~cosmology.api._array_api.Array)	Proper time \(t\) in Gyr.
scale_factor(z, /)	Redshift-dependenct scale factor.
scale_factor0	Scale factor at z=0.
transverse_comoving_distance(...)	Transverse comoving distance \(d_M\) in Mpc.