The S-Process in AGB Binary Stars: Impact of Binary Evolution on Stellar Nucleosynthesis

Learn about the impact of binary star evolution on the slow neutron capture process (s-process) in asymptotic giant branch (AGB) stars through this research presentation. Explore how binary interactions like mass transfer and common envelope events affect stellar nucleosynthesis, particularly in the production of elements heavier than iron. Examine findings from binary population synthesis modeling that shows a 20% reduction in s-process peak elements (Sr, Ba, and Pb) in populations with 70% binary stars, while also discovering rare cases of enhanced s-process element production. Understand the significance of binary evolution in comprehending element origins, given that at least half of AGB stars have stellar companions. Gain insights into ongoing research extending these findings to lower metallicity environments for broader observational comparisons and a more complete understanding of stellar nucleosynthesis in AGB binary systems.