Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling
Figure 4
The overdensity evolution . We group in the simulation snapshot for all particles according to their overdensity. Then trace back the density of the SPH-particles and compute the average density of the groups for earlier redshifts (solid lines). Moreover, we show three approximated overdensity evolutions (dashed lines) according to (4). See Section 4.2 for details. The peak-like structures at are caused by photo-evaporation and are neglected in our approximation.
