Environmental Mechanisms Shaping the Nature of Dwarf Spheroidal Galaxies: The View of Computer Simulations

Figure 5

𝑣/𝜎 as a function of the number of orbits for the satellites in the cosmological hydrodynamical simulation of Governato, Mayer et al. [56]. 𝑣/𝜎 is measured within the half mass radius of the dwarfs at the end of the simulation, namely, after 13 billion years of evolution. The mean number of orbits for each of the three groups of dwarfs appears on the horizontal axis.