Figure 3B. The four curves in Figure 3A scaled to the same peak value and peak position, illustrating that the curves for different generations have the same functional form, and that the particle distribution thus is self-similar

From

Big Crunch, Big Rip – or a Self-Similar Expansion Replenished by Dark Matter and Dark Energy?

Arne Bergstrom

International Journal of Physics. 2014, 2(5), 146-150 doi:10.12691/ijp-2-5-3