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--- theoreticalbrackground_gw [2022/07/18 10:54]
theoastro [Gravitational-Wave Emission]
+++ theoreticalbrackground_gw [2022/07/18 11:05] (current)
theoastro [Gravitational-Wave Modelling]
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 ==== Gravitational-Wave Modelling ====
+Due to the complexity of Einstein's field theory, there is to date no closed form solution to the two-body problem and one requires models to describe model the compact binary coalescence and the emitted gravitational-wave signals. Among the most important approaches are: numerical-relativity simulations, Post-Newtonian predictions, the effective-one-body approach, or black hole perturbation theory (see image below  A. Buonanno, B.S. Sathyaprakash in: General Relativity and Gravitation: A Centennial Perspective; Cambridge, University Press (2015) )
+{{GWmodels.png}}
+Considering binary neutron star and black hole - neutron star systems, one also has to incorporate finite-size effects and the internal structure of neutron stars, i.e., the tidal deformability --describing the deformability of the neutron star -- enter gravitational-wave model descriptions. Over the last years, there has been significant progress in modeling binary neutron star systems capturing the strong-gravity and tidally dominated regime of the late-inspiral, but current models will not be sufficient to provide unbiased source predictions of future gravitational-wave detections.