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Probing the Innermost Ejecta Layers in Supernova Remnant Kes 75: Implications for the Supernova Progenitor

• Authors: Tea Temim, Patrick Slane, Tuguldur Sukhbold, Bon-Chul Koo, John C. Raymond, and Joseph D. Gelfand

2019 The Astrophysical Journal Letters 878 L19.

• Provider: AAS Journals

Caption: Figure 10.

Carbon and oxygen mass fractions for mixed ejecta models of Sukhbold et al. (2016) as a function of the progenitor ZAMS mass (MZAMS). The orange and red dots represent the 12C and 16O mass fractions, respectively, which do not vary significantly in the innermost 0.1 M of ejecta (see Figure 7). Progenitors with MZAMS = 8–12 M have comparable mass fractions of carbon and oxygen that are consistent with the observed line intensities in Kes 75.