Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling

Figure 2

The baryonic mass fraction in units of the cosmic mean, Ω_b/Ω_m. Filled squares refer to the simulation of low density region while stars refer to the filament region. Only haloes with more than 180 dark matter are taken into account. The top row shows the baryon fraction at different redshifts as a function of total halo mass. The middle row gives the baryon fraction as a function of maximum circular velocity. The bottom row shows the baryon fraction of newly accreted matter (see text for a more detailed description).

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