Elements in a CCSN (b18.3-fid, clipped)

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Distribution of elements in the ejecta of an aspherical core-collapse supernova explosion takes place, illustrating in 3D the mass fractions of elements just before shock breakout. Isosurfaces show the 56Ni element in red, 28Si in green, 16O in blue, and 4He in light blue. Each element's isosurface is set to its 10% (lighter color) and 70% (darker color) of maximum value. Inner structure becomes visible as some regions are clipped for a clearer view. This model was obtained within an extended study presented in the paper "Matter Mixing in Aspherical Core-Collapse Supernovae." It uses single-star and binary-merger progenitor models to simulate SN 1987A, published in The Astrophysical Journal (2020).