Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling
Figure 7
Central gas overdensity as a function of the halo circular velocity. We compute the central overdensity according to (15) (thick solid line). Moreover, we plot the overdensity at the scaling radius, (thin solid line). The grey area indicates the transition region from pure UV heating to thermal balance, see Section 4.2 or Figure 6. The blue dashed line indicates the characteristic circular velocity obtained from the numerical simulations. The thick and the thin red dotted lines indicate a condensation criterion of and 300, respectively.
