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Fig. 2
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Contour plot showing He core masses at the end of He burning for our MESA tracks adopting S23 winds as a function of the metallicity and ZAMS mass. The white lines highlight the levels at 32 M⊙. 64 M⊙, and 135 M⊙, which set the boundaries to have PPISNe, PISNe, and direct collapse via photodisintegration.
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