onepower.pk.Spectra.Tk_cold_ratio#
- Spectra.Tk_cold_ratio(k, g, ommh2, h, f_nu, N_nu, T_CMB=2.7255)#
Ratio of cold to matter transfer function from Eisenstein & Hu (1999). This can be used to get the cold-matter spectrum approximately from the matter spectrum. Captures the scale-dependent growth with neutrino free-streaming scale.