Bayes' theorem and early solar short-lived radionuclides: the case for an unexceptional origin for the solar system

Abstract

The presence of excesses of short-lived radionuclides in the early solar system evidenced in meteorites has been taken as testament to close encounters with exotic nucleosynthetic sources, including supernovae or AGB stars. An analysis of the likelihoods associated with different sources of these extinct nuclides in the early solar system indicates that rather than being exotic, their abundances were typical of star-forming regions like those observed today in the Galaxy. The radiochemistry of the early solar system is therefore unexceptional, being the consequence of extensive averaging of molecular cloud solids.

In press, ApJ

References in corpus (8)

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• Theoretical Distributions of Short-Lived Radionuclides for Star Formation in Molecular Clouds
• Timescales of Solar System Formation Based on Al-Ti Isotope Correlation by Supernova Ejecta
• Possible Implications of Relatively High Levels of Initial ${}^{60}$Fe in Iron Meteorites for the Non-Carbonaceous -- Carbonaceous Meteorite Dichotomy and Solar Nebula Formation
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