München 2019 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 51: Nuclear Astrophysics IV
HK 51.3: Vortrag
Donnerstag, 21. März 2019, 14:45–15:00, HS 18
Neutron star merger accretion discs — •Christian Schwebler1,2, Kevin Ebinger1,2, and Gabriel Martínez Pinedo1,2 — 1Institut für Kernphysik (Theoriezentrum), Technische Universität Darmstadt, Schlossgartenstraße 2, 64289 Darmstadt, Germany — 2Gesellschaft für Schwerionenforschung Darmstadt, Planckstr. 1, D-64259 Darmstadt, Germany
The merger of binary neutron stars results in the formation of a hyper massive neutron star or a black hole and an accretion disk. During the merger a part of the material outflows as dynamical ejecta and from the disc secular ejecta gets expelled which is an important source of rapid neutron capture (r-process) nucleosynthesis which produces heavy elements like gold. To understand how and what amounts of heavy elements are created in this scenarios we investigate the conditions in these accretion disks and the outflowing material with general-relativistic hydrodynamic simulations using the Einstein Toolkit.