Fig. 1

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Comparison of the he4p5MdZ (left: MpreSN = 4.5 M⊙) and he6p0 (right: MpreSN = 4.44 M⊙) unmixed ejecta models. The alternating shades of blue and white indicate the successive shells in the original unmixed ejecta. Starting from the innermost ejecta layer, one progresses outwards through the Fe/He, Si/S, O/Si, O/Ne/Mg, O/C, He/C, and He/N shells.
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