Shedding Light on the Origin of
Pb204
, the Heaviest
s
-Process–Only Isotope in the Solar System
A. Casanovas-Hoste,
C. Domingo-Pardo,
J. Lerendegui-Marco
et al.
Abstract:Asymptotic giant branch stars are responsible for the production of most of the heavy isotopes beyond Sr observed in the solar system. Among them, isotopes shielded from the r-process contribution by their stable isobars are defined as s-only nuclei. For a long time the abundance of Pb204, the heaviest s-only isotope, has been a topic of debate because state-of-the-art stellar models appeared to systematically underestimate its solar abundance. Besides the impact of uncertainties from stellar models and galact… Show more
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