Synthesis of thorium and uranium in asymptotic giant branch stars

• Published in: arXiv.org
• Main Authors: Choplin, A, Goriely, S, Siess, L
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 07.11.2022
• Subjects: Abundance; Actinides; Astronomical models; Asymptotic giant branch stars; Dating techniques; Ingestion; Metallicity; Neutrons; Nuclear capture; Nuclear fusion; Physics - Solar and Stellar Astrophysics; Protons; Stellar evolution; Synthesis; Thorium; Uranium
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2211.03824

The intermediate neutron capture process (i-process) operates at neutron densities between those of the slow and rapid neutron-capture processes. It can be triggered by the ingestion of protons in a convective helium-burning region. One possible astrophysical site is low-mass low-metallicity asympto...