Close-up view of the region containing the central bundle of filaments highlighted in Fig. 8. The unshocked Fe-rich ejecta with densities greater than 10⁻²⁴ g cm⁻³ are represented as a red isosurface. The corresponding distributions of ejecta enriched in O (top right), Ne (bottom left), and Mg (bottom right) are visualized through volume rendering using a blue color palette. Each panel includes a color scale on the right, indicating the density variations of the respective elements.