Isosurfaces of the distributions of unshocked Fe (red) and Ti (blue) at the age of Cas A for different values of the mass fractions (decreasing from left to right; see the values reported at the end of the caption) and different viewing angles (front and side views) for models W15-2-cw-IIb-HD and W15-2-cw-IIb-HD+dec. The values of the mass fractions are selected so that the corresponding isosurfaces enclose, from left to right, 30, 50, 75, and 95% of the total mass of the respective unshocked species. The red isosurfaces correspond to a value of Fe density in model W15-2-cw-IIb-HD (W15-2-cw-IIb-HD+dec) which is, in units of 10⁻²⁶ g cm⁻³, 119 (89), 95 (81), 71 (70), 40 (55), respectively; the blue isosurfaces correspond to a value ofTi density in model W15-2-cw-IIb-HD (W15-2-cw-IIb-HD+dec) which is, in units of 10⁻²⁷ g cm⁻³ (considering the tracer-particle-based post-processing with a large nuclear network, Wongwathanarat et al. 2017, but not considering its decay in ⁴⁴Ca), 2.1 (1.7), 1.7 (1.4), 1.2 (1.1), 0.7 (0.8), respectively (considering the decay of ⁴⁴Ti in ⁴⁴Ca, these values are scaled by a factor of 0.027, for an e-folding time of 90 yr). See online Movie 3 for an animation of these data; a navigable 3D graphic of these distributions is available at https://skfb.ly/6UMxI.