Environmental Mechanisms Shaping the Nature of Dwarf Spheroidal Galaxies: The View of Computer Simulations
Figure 1
Bound mass in units of the initial mass as a function of time, for a (dark-matter-only) satellite moving on an eccentric orbit within a Milky Way halo potential (see [27] for details). The mass of the satellite is of the mass of the primary and both are modeled with NFW halos. The ratio between the concentration parameter of the halo and satellite is , where is the concentration of the primary halo. The symbols are the N-Body data and the solid line shows the results of the semianalytical model described in Taffoni et al. [27], that includes both tidal truncation and tidal shocks (see text). Stars identify each pericentre passage. The dashed line is the bound mass that would remain if only tidal truncation is applied.
