CHDM2 cold and hot dark matter particle distributions: two‐dimensional histogram of ρ_tot vs. ρ_hot/ρ_tot vs. ln(counts Mpc⁻¹). Densities are in units of M_☉ Mpc⁻³. Notice that the graph is skewed along the ρ_hot/ρ_tot axis with a slight tilt toward higher ratios. At low ρ_tot there are many cells with ρ_hot/ρ_tot larger than the average Ω_ν = 0.3, showing the relatively more diffuse distribution of hot vs. cold particles. Cold particles dominate the highest density regions, such that ρ_hot/ρ_tot lies below the fiducial value of Ω_ν = 0.3. At low densities there are also cells with predominantly cold particles. Here presumably, the potential is insufficient to capture many hot particles. Conversely, a "pure hot cell" is a rare occurrence. The isolated low‐density contours arise from the discrete ratios of low particle counts.