Radioactive nuclei in the early Solar System: analysis of the 15 isotopes produced by core-collapse supernovae

Abstract

Short-lived radioactive isotopes (SLRs) with half-lives between 0.1 to 100 Myr can be used to probe the origin of the Solar System. In this work, we examine the core-collapse supernovae production of the 15 SLRs produced: ${}^{26}$Al, ${}^{36}$Cl, ${}^{41}$Ca, ${}^{53}$Mn, ${}^{60}$Fe, ${}^{92}$Nb, ${}^{97}$Tc, ${}^{98}$Tc, ${}^{107}$Pd, ${}^{126}$Sn, ${}^{129}$I, ${}^{135}$Cs, ${}^{146}$Sm, ${}^{182}$Hf, and ${}^{205}$Pb. We probe the impact of the uncertainties of the core-collapse explosion mechanism by examining a collection of 62 core-collapse models with initial masses of 15, 20, and 25M${}_{\odot }$, explosion energies between 3.4$\times$10${}^{50}$ and 1.8$\times$10${}^{52}$ ergs and compact remnant masses between 1.5M${}_{\odot }$and 4.89M${}_{\odot }$. We identify the impact of both explosion energy and remnant mass on the final yields of the SLRs. Isotopes produced within the innermost regions of the star, such as ${}^{92}$Nb and ${}^{97}$Tc, are the most affected by the remnant mass, ${}^{92}$Nb varying by five orders of magnitude. Isotopes synthesised primarily in explosive C-burning and explosive He-burning, such as ${}^{60}$Fe, are most affected by explosion energies. ${}^{60}$Fe increases by two orders of magnitude from the lowest to the highest explosion energy in the 15M${}_{\odot }$model. The final yield of each examined SLR is used to compare to literature models.

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• Magnetorotational supernovae: A nucleosynthetic analysis of sophisticated 3D models
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• Numerical studies on the link between radioisotopic signatures on Earth and the formation of the Local Bubble. II. Advanced modeling of interstellar 26Al, 53Mn, 60Fe, and 244Pu influxes as traces of past supernovae in the solar neighborhood
• Tracer particles for core-collapse supernova nucleosynthesis: The advantages of moving backward
• Aluminium-26 from massive binary stars III. Binary stars up to core-collapse and their impact on the early Solar System
• Type Ia Supernova Nucleosynthesis: Metallicity-Dependent Yields
• Comparison between core-collapse supernova nucleosynthesis and meteoric stardust grains: investigating magnesium, aluminium, and chromium
• The $\gamma$-process nucleosynthesis in core-collapse supernovae II. Effect of the explosive recipe
• The s process in massive stars, a benchmark for neutron capture reaction rates
• Impact of newly measured 26Al(n, p)26Mg and 26Al(n, α)23Na reaction rates on the nucleosynthesis of 26Al in stars
• Impact of Newly Measured Nuclear Reaction Rates on ${}^{26}$Al Ejected Yields from Massive Stars
• Constraining the Synthesis of the Lightest p Nucleus 74Se
• Aluminium-26 production in low- and intermediate-mass binary systems