Simulating Binary Neutron Star Mergers

Tim Dietrich (), Parikshit Biswas, Bernd Brügmann, Swami Vivekanandji Chaurasia, Mattia Emma, Francesco Maria Fabbri, Henrique Leonhard Gieg, Maximilian Kölsch, Nina Kunert, Michele Mattei, Anna Neuweiler, Henrik Rose, Peter Tsun Ho Pang, Federico Schianchi and Maximiliano Ujevic Tonino
Additional contact information
Tim Dietrich: University of Potsdam, Institute for Physics and Astronomy
Parikshit Biswas: University of Potsdam, Institute for Physics and Astronomy
Bernd Brügmann: University of Jena, Theoretical Physics Institute
Swami Vivekanandji Chaurasia: Stockholm University, The Oskar Klein Centre
Mattia Emma: University of Potsdam, Institute for Physics and Astronomy
Francesco Maria Fabbri: University of Jena, Theoretical Physics Institute
Henrique Leonhard Gieg: Universidade Federal do ABC, Centro de Ciências Naturais e Humanas
Maximilian Kölsch: University of Jena, Theoretical Physics Institute
Nina Kunert: University of Potsdam, Institute for Physics and Astronomy
Michele Mattei: University of Potsdam, Institute for Physics and Astronomy
Anna Neuweiler: University of Potsdam, Institute for Physics and Astronomy
Henrik Rose: University of Potsdam, Institute for Physics and Astronomy
Peter Tsun Ho Pang: Nikhef
Federico Schianchi: University of Potsdam, Institute for Physics and Astronomy
Maximiliano Ujevic Tonino: Universidade Federal do ABC, Centro de Ciências Naturais e Humanas

A chapter in High Performance Computing in Science and Engineering '22, 2024, pp 5-18 from Springer

Abstract: Abstract In 2017, the first joint detection of gravitational waves and electromagnetic waves, produced from the merger of a binary neutron star system, inaugurated a new era of multi-messenger astronomy. Due to the strong gravitational fields present in the last stages of the compact binary coalescence, one has to solve Einstein’s field equations for a comprehensive study. For this reason, numerical-relativity simulations are an essential tool to correctly describe and study these compact binary mergers. High-performance computing facilities such as HAWK enable us to perform accurate simulations of binary systems by employing our numerical-relativity code BAM. BAM solves the equations of general relativity together with the equations of general-relativistic hydrodynamics. Within our research project, we use numerical-relativity simulations of binary systems to investigate matter at supranuclear densities, to measure the expansion rate of our Universe, and to calibrate theoretical models for the emitted gravitational and electromagnetic waves.

Date: 2024
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DOI: 10.1007/978-3-031-46870-4_1

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