International Symposium on Nuclei in the Cosmos XVIII (NIC XVIII)

Session

Atomic and Nuclear Inputs for Nuclear Astrophysics

17 Jun 2025, 09:00

Girona

254. Atomic Physics Inputs for Kilonova Modelling

Andreas Flörs (GSI Helmholtzzentrum for Heavy Ion Research)

17/06/2025, 09:00

Invited Review Talk

With the recent detection of multiple neutron star merger events, the necessity for a more comprehensive understanding of nuclear and atomic properties, as well as radiative transfer processes, has become increasingly critical. Despite advancements in our knowledge, significant uncertainties persist in opacity calculations, leading to variations in the strength and location of spectral...

92. Mass Measurements of Exotic Neutron-Deficient Nuclides Below $^{100}$Sn at IGISOL and Their Astrophysical Implications

zhuang ge (University of Jyväskylä)

17/06/2025, 09:30

Contributed Talk

The investigation of heavy N = Z nuclei and their neighbors has attracted significant attention both theoretically and experimentally due to their crucial role in nuclear structure studies and their substantial impact on modelling nuclear astrophysical processes, particularly as inputs for the astrophysical rapid proton-capture (rp) and $\nu$p processes [1-3]. Recent advancements at the IGISOL...

179. Comprehensive Atomic Data for Kilonova Spectral Modeling Beyond the Photospheric Phase

Ricardo Ferreira da Silva (LIP/FCUL)

17/06/2025, 09:45

Contributed Talk

The limited but growing set of kilonova observations following neutron star mergers has established these events as significant sites for r-process nucleosynthesis [1,2]. Despite recent advances in spectral identification of several elements in merger ejecta [see for e.g. 3], precise abundance determinations remain challenging, particularly at later evolutionary phases where non-local...