Göttingen 2025 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 4: GW I

GR 4.3: Talk

Tuesday, April 1, 2025, 16:55–17:15, ZHG008

Full-spectrum analysis of gravitational waves from binary neutron star mergers — •Giulia Huez — Friedrich-Schiller-University of Jena, Jena, Germany

The gravitational-wave (GW) observation of the full-spectrum (inspiral-merger-postmerger) of a binary neutron star (BNS) merger can convey unique information on the nuclear matter that constitutes these compact objects. BNS are optimal targets for next-generation ground-based GW detectors, which would give the possibility to measure the astrophysical parameters with a higher precision with respect to current detectors. Thus, the development of waveform models for the full GW spectrum of BNS mergers is fundamental in order to minimize biases in the parameter estimation processes.

In this talk, a full Bayesian analysis of GWs from inspiral to postmerger is presented. I will review the waveform template used, based on effective-one-body model and numerical relativity simulations, and show preliminary results on neutron star matter properties.

Keywords: gravitational waves; binary neutron star; bayesian analysis