Stellar surface density profiles for the different stellar components at ﹩z=0﹩, for (left) the ΛCDM and (right) the ΛWDM galaxies. Filled circles are for the total stellar surface density profile, open circles are for the spheroid only (stars older than 10 Gyr). The solid lines are exponential fits to the disk component, with scale lengths 3 and 3.6 kpc for the ΛCDM and the ΛWDM galaxy, respectively. The short‐dashed lines are exponential fits to the central stellar mass distribution, with scale lengths of 1 kpc for both galaxies (the bar and the bulge are both contributing); the long‐dashed lines are a de Vaucouleurs fit to the spheroid, with scale lengths of 800 pc (ΛCDM galaxy) and 500 pc (ΛWDM galaxy).