Fig. 1
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Top left: modeled parent body core mass fractions (CMF) versus oxygen fugacity (fO2) for the compositional cases considered here. The shaded horizontal bar represents CMF estimates for Psyche (Elkins-Tanton et al. 2022). The dashed vertical line indicates the redox below which metallic Fe dominates. Top right: CMF evolution with mantle FeO content for our cases. Bottom: FeO versus fO2 from our results. Data from recent studies on iron meteorites are overplotted for comparison (Grewal et al. 2024; Spitzer et al. 2025; Hilton et al. 2022).
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