First row: stellar disk number density contours of the isolated giant Sa galaxy simulation in GalMer for 5 time outputs as indicated in each panel. Second row: changes in angular momentum, ΔL as a function of the initial angular momentum, L. Both ΔL and L are divided by the asymptotic circular velocity V_c, thus L gives approximately the galactic radius in kpc. The locations of the bar’s corotation and 2:1 OLR are indicated by the dotted and solid lines, respectively. A bimodal distribution indicating the work of resonance overlap of bar and spirals is clearly seen in each panel. Third row: the evolution of the radial profiles (left) and metallicities (right) for the stellar and gaseous disks. The initial stellar and gaseous disk scale-lengths are indicated by the dashed lines. The time steps shown are as in the first row, indicated by solid red, dotted orange, dashed green, dotted-dash blue, and solid purple lines, respectively. Fourth row: distribution of birth radii for stars ending up in the annuli indicated by the green lines (600 pc) at t = 2.5 Gyr.