Hamburg 2016 – scientific programme
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GR: Fachverband Gravitation und Relativitätstheorie
GR 10: Relativistic Astrophysics
GR 10.1: Talk
Thursday, March 3, 2016, 11:00–11:20, VMP6 HS A
About the internal structure of neutron star merger products — •Matthias Hanauske1,2, Kentaro Takami2, Luciano Rezzolla1,2, and Horst Stöcker1,2 — 1Institut für Theoretische Physik, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany — 2Frankfurt Institute for Advanced Studies, Ruth-Moufang-Straße 1, 60438 Frankfurt, Germany
Gravitational waves emitted from merging neutron star binaries are on the verge of their first detection with advanced gravitational-wave interferometers. Depending on the initial masses of the system, the binary merger product could generate a hypermassive neutron star (HMNS) or promptly form a black hole surrounded by a hot and dense torus. Fully general relativistic numerical simulations of merging neutron star binaries are able to describe the overall evolution ranging from the inspiral and merger phase up to the post merger, collapse and ringdown phase. The emitted gravitational-wave signal from the produced HMNS is composed of specific characteristics of the equation of state of matter which can be analysed from its spectral features. This talk will focus on the internal HMNS properties (e.g. differential rotation profiles, structure of the space-time metric, particle composition and hadron-quark phase transition) and their connection with the emitted gravitational-wave signal.