arXiv · 2508.12933
Stochasticity in Stellar Yields Reflected in Supernova Dust Masses Across All Massive-Star Progenitors
Abstract
Massive stars, ending their lives as supernovae (SNe), are among the primary sources of dust in galaxies. In this study, we derive theoretical upper limits on dust masses as a function of SN progenitors, assuming non-rotating single stars of solar metallicity, with initial masses between 9 and 120 Msun. Based on previously established models of dust formation chemistry in core-collapse SNe (CCSNe), we find that O-rich dust, particularly silicates and silica, dominates the dust budget, with masses ranging from 0.02 to 1.43 Msun, and that the total mass of O-rich dust increases with progenitor mass. C-rich amorphous carbon and silicon carbide dust are significant for lower-mass progenitors (10--15 Msun), but their mass never exceed 0.05 Msun. For progenitors up to 30 Msun, we provide best-fit functions describing the masses of O-rich dust, C-rich dust, and CO molecules. A large stochastic variation is found in the predicted masses of silicate dust, which correlates with the randomness of shell-merger events in the pre-explosion phases of massive stars. Furthermore, we show that the dust mass for a given progenitor can vary by a factor of 2--5, reflecting differences in pre-explosion abundance distributions predicted by the different stellar evolution models. We emphasize that the final dust yield in SNe is primarily determined by stochastic stellar yields and uncertainties in pre-explosion nucleosynthesis, while explosion properties mainly influence the timescales of dust formation.
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Archana Purushothaman, Arkaprabha Sarangi, S. K. Jeena. 2026-09-14. Stochasticity in Stellar Yields Reflected in Supernova Dust Masses Across All Massive-Star Progenitors. https://arxiv.org/abs/2508.12933
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