Göttingen 2025 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 15: Astrophysics III

EP 15.1: Hauptvortrag

Freitag, 4. April 2025, 13:30–14:00, ZHG101

Nucleosynthesis of heavy elements in the hot and dense plasmas of explosive astrophysical environments — •Daniel Siegel — Universität Greifswald

Gravitational-wave and multi-messenger astronomy shed light on the astrophysics of black holes and neutron stars and also allow for unique probes of fundamental physics. I will discuss recent results on how the mergers of neutron stars as well as other explosive systems such as the death of massive, rotating stars (collapsars) give rise to the formation of heavy elements in the universe. In particular, I will discuss recent results at the interface of numerical relativity, relativistic astrophysics, neutrino physics as well as nuclear astrophysics, and highlight how multi-messenger astronomy may lead to answers of a 70-year old fundamental question in physics: How does the Universe create its heaviest elements?

Keywords: nuclear astrophysics: nucleosynthesis; accretion disks; compact objects; multi-messenger astrophysics