Dark Matter Substructure and Dwarf Galactic Satellites
Figure 4
Radial distribution of subhalos (solid lines) selected using their different properties ( and total mass—solid red and blue lines, resp.) compared to the matter density profile in their host halo (dashed lines). (a) shows the profiles for subhalos selected using circular velocity and bound mass a the current epoch, while the lower shows radial distribution of subhalos selected using the corresponding quantities before subhalo was accreted unaffected by the subsequent tidal mass loss. Note that minimum threshold values for subhalo selection, and , are different in (b) because for a typical mass loss many subhalos with smaller circular velocities and masses at the time of accretion fall below the completeness limit of the simulation by .
