Isosurfaces of the distributions of C×O (red) and Si×O (green) at day 9875 from selected view angles for models N16.3 (left panels), B18.3 (center panels), and S19.8 (right panels). The semi-transparent isosurfaces correspond to a value of density which is at 50% of the respective peak density (maximum density is 1.3 × 10⁻¹⁹ g cm⁻³, 3.2 × 10⁻¹⁹ g cm⁻³, and 1.9 × 10⁻¹⁹ g cm⁻³ for Si×O and 9.9 × 10⁻²⁰ g cm⁻³, 4.3 × 10⁻¹⁹ g cm⁻³, and 1.3 × 10⁻¹⁹ g cm⁻³ for C×O, for models N16.3, B18.3, and S19.8 respectively). The gray arrow lying on the y axis indicate the position of the observer. The ring indicates the position of the dense inner ring. See online Movie 6 for an animation of these data; a navigable 3D graphic of the C×O and Si×O distributions for the three models is available at https://skfb.ly/6P7sI.