Münster 2017 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 23: Nuclear Astrophysics II
HK 23.7: Vortrag
Dienstag, 28. März 2017, 15:45–16:00, F 33
Nuclear reaction network for hydrodynamical simulations — •Moritz Reichert1, Dirk Martin1, Julia Bliss1, and Almudena Arcones1,2 — 1Institut für Kernphysik, TU Darmstadt — 2GSI Helmholtzzentrum GmbH
Core-collapse supernovae mark the end of the life of stars with at least eight solar
masses. These explosive events are very complex to model and involve multidimensional
hydrodynamics, neutrino interactions and transport and general relativity to describe the
evolution of matter under extreme conditions. An exciting outcome from supernova
explosions is the formation of new elements which can be produced only in such a
cataclysmic event. Taking all physical aspects into account makes the description of
supernovae ultimately challenging and also computationally expensive.
Reducing the computational cost is an essential part of supernova simulations. So far,
there are no hydrodynamical simulations that use a nuclear reaction network which
contains all involved and synthesized elements. We provide an accurate and precise
nuclear reaction network that includes only a fraction of nuclei in a well chosen area of
the nuclear chart considering all important reactions. This network is able to keep track of
nuclear composition and energy generation.
⋆ Supported by Helmholtz Young Investgator Group VH-NG-825 and SFB 1245.