Münster 2017 – wissenschaftliches Programm

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SYDI: Symposium Dissertationspreis der Fachverbände GR/T/HK

SYDI 1: GR-HK-T Dissertationspreis

SYDI 1.2: Hauptvortrag

Montag, 27. März 2017, 14:30–15:00, H 1

Simulating Binary Neutron Star Mergers — •Tim Dietrich — Max Planck Institute for Gravitational Physics, Potsdam, Germany — Friedrich Schiller University, Jena, Germany

Binary neutron star mergers are associated with a variety of observable phenomena in the gravitational and electromagnetic spectra. Because of their high compactness and density neutron stars are a unique laboratory for gravitational physics, high energy physics, and nuclear physics.

We are investigating binary neutron star systems in the last milliseconds before and after their merger. Because of the complexity of the field equations of General Relativity we study the system with the help of numerical relativity simulations. In this talk, different configurations with varying spin, equation of state, and mass ratio are constructed. Some highlights are the first consistent simulations of spinning binary neutron stars, the first precessing binary neutron star merger simulation, and the simulation with the highest mass ratio simulated to date. Our state-of-the-art simulations have been used to validate and improve semi-analytical gravitational waveform models which are now ready to be used by gravitational wave astronomers.