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GR: Fachverband Gravitation und Relativitätstheorie

GR 10: Numerische Relativitätstheorie II

GR 10.1: Vortrag

Mittwoch, 27. Februar 2013, 16:30–16:45, HS 6

Simulations of Binary Neutron Star Mergers — •Wolfgang Kastaun — Albert Einstein Institut Golm

The inspiral and merger of binary neutron star systems is one of the most promising sources for current gravitational wave astronomy and also the most likely explanation for short gamma ray bursts. Such events are sensitive to a unique mix of physics, namely general relativity in the strong field regime, nuclear physics at extreme densities and a large temperature range, neutrino physics, and relativistic (Magneto-)Hydrodynamics. Three-dimensional numerical simulations are the only way to map the theoretical unknowns onto observable predictions. In this talk, we will present simulations of non-magnetized binary neutron star mergers done at the AEI, incorporating nuclear physics descriptions of matter at high densities and a fully general relativistic evolution, with focus on the gravitational wave signal and the temperature evolution.