Conference Presentation (Other)

GSI-2026-00232

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Clues on the (supernovae or non-supernovae) Origins of the Elements from Galactic Archeology

Thielemann, F.-K.GSI*

2025

Please use a persistent id in citations: doi:10.5281/ZENODO.15765631

Abstract: Low-metallicity stars are witnesses of the first stellar nucleosynthesis events in the Galaxy, as their surface abundances reflect the composition of the interstellar medium from which they were born. Aside from the primordial Big Bang nucleosynthesis, massive stars, due to their short lifetimes, dominate the wind and explosive ejecta into the interstellar medium of the early Galaxy. Most of them will end as core-collapse supernova (CCSN) explosions, and typical abundance patterns reflect their influence. Essentially all CCSNe eject Fe (decaying from radioactive 56Ni). Therefore, it is interesting to test whether other elements found in low-metallicity stars are correlated with Fe, i.e. whether they have been co-produced in the contributing sources or require either different or additional astrophysical origins. We concentrate in our analysis on stars with [Fe/H]

Note: Creative Commons Attribution 4.0 International

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Contributing Institute(s):

1. Nukleare Astrophysik & Struktur (KNA)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2025

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