Density, velocity dispersion, and entropy profile of DM and baryons for CDM and IDM. We show the density as a function of radius (upper panel) at a redshift of z = 0. The velocity dispersion, including kinetic and internal energy but excluding radial bulk motion, is displayed in the middle panel. The results for collisionless DM are shown in black. In the lower panel, the entropic function (Eq. (31)) is displayed. The solid lines are for the DM and the dashed ones are for the baryons. Furthermore, the coloured curves are for IDM simulations employing different cross-sections. In addition, the results for a simulation that makes use of the scheme for improved energy conservation as explained in Appendix B are given too.