Power spectra of the natural logarithm of density for the simulation of the group L1000_512 (solid) and L1000_1024 (dotted lines in middle panel). The thicker range show the captured inertial range used to fit the slope and compute η_d in Fig. 8. It is defined as the portion of the curve that is left unchanged when resolution is increased. The displayed power spectra are compensated (multplied by k³) such that a power-law slope of −3 is horizontal on the plot.