Dependence of on some cosmological parameters for a spherical domain extending to z = 0.09. The basis is the ΛCDM model with Ω_b = 0.0456, Ω_cdm = 0.227, h = 0.7, n_s = 0.963 and σ₈ = 0.809. For this model and for the chosen redshift, . We then varied Ω_m = Ω_b + Ω_cdm, f_b = Ω_b/Ω_m and h between 0 and 1, holding the other parameters fixed at their aforementioned values. Because σ₈ is fixed, the fluctuation in is nearly independent on Ω_m.