Parts | Days | Selection | Search | Updates | Downloads | Help
GR: Fachverband Gravitation und Relativitätstheorie
GR 10: Relativistic Astrophysics I
GR 10.2: Talk
Wednesday, March 13, 2024, 14:20–14:40, HBR 14: HS 2
Radiation-hydrodynamics simulations of kilonovae with nuclear networks — •Fabio Magistrelli — Friedrich-Schiller-Universitaet Jena, TPI
I will present a new technique to simulate the long-term evolution of the material ejected during binary neutron star mergers. For the first time, we provide radiation-hydrodynamic simulations with complete nuclear network calculations to compute in real-time the energy released by nuclear reactions and keep track of the detailed matter composition. I will then describe the results obtained by applying this pipeline to a new set of numerical relativity simulations run for hundreds of milliseconds after merger. In particular, I will discuss the features induced by different equations of states for the neutron star matter on kilonovae lightcurves and r-process nucleosynthesis yields. Finally, I will consider the effects of including extra energy in the simulation in the form of a polar jet mimicking a short gamma-ray burst.
Keywords: kilonovae; r-process; nucleosynthesis; compact bynary mergers