Same as in Figure 6 but for the density maps in units of ﹩{\mathrm{cm}}^{-3}\,{(L/1\mathrm{Mpc})}^{-1/2}﹩. The statistical error is 5% for both the inner and outer regions. The right panel shows the same image as the left panel but that is smoothed with a ﹩7^{\prime\prime} ﹩ Gaussian and the contours of the spiral patterns shown in the right panel of Figure 2 are overlaid.