Second release of the CoRe database of binary neutron star merger waveforms

Sep 15, 2026

Presents the second data release of gravitational-waveforms generated by the Computational Relativity (CoRe) collaboration for binary neutron star (BNS) mergers. The database includes 254 BNS configurations and 590 numerical-relativity simulations across multiple grid resolutions, providing strain and Weyl curvature multipoles up to ℓ = m = 4. It covers a wide span of mass, mass ratio, spin, and eccentricity parameters, targeting GW170817 and GW190425, and includes multiple equations of state. Includes waveform error analysis, faithfulness accuracy discussion, and EOS-insensitive fitting formulas for merger frequency, luminosity peak, and post-merger spectrum.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages31

Reading Time1 h 18 min

AccessFree to download

Introduction

Second release database overview

Waveform contents and parameter coverage

Error analysis and accuracy (faithfulness)

Fitting formulas for merger and post-merger quantities

PAPER • OPEN ACCESS Second release of the CoRe database of binary neutron star merger waveforms To cite this article: Alejandra Gonzalez et al 2023 Class. Quantum Grav. 40 085011 View the article online for updates and enhancements. You may also like -Estimations of superconducting fluctuation effects in amorphous MoRu and MoRe alloy thin films Kazumasa Makise, Yuya Mizokami, Tatsuya Nogami et al. -Transition from Coulomb blockade to resonant transmission regime in superconducting tunnel junctions with Wdoped Si barriers Volodymyr Shaternik, Andrii Shapovalov, Mikhail Belogolovskii et al. -CoLoRe: fast cosmological realisations over large volumes with multiple tracers César Ramírez-Pérez, Javier Sanchez, David Alonso et al. This content was downloaded from IP address [194.94.225.6](194.94.225.6) on 11/04/2023 at 10:45 Class. Quantum Grav. 40 (2023) 085011 (30pp) [https://doi.org/10.1088/1361-6382/acc231](https://doi.org/10.1088/1361-6382/acc231) Second release of the CORE database of binary neutron star merger waveforms Alejandra Gonzalez 1, ∗ 􀁂, Francesco Zappa1 􀁂 , Matteo Breschi 1 􀁂, Sebastiano Bernuzzi1 􀁂 , David Radice2,3,4, Ananya Adhikari5, Alessandro Camilletti6,7 􀁂, Swami Vivekanandji Chaurasia8, Georgios Doulis 1,9, Surendra Padamata2,3, Alireza Rashti2,3, Maximiliano Ujevic 10, Bernd Brügmann 1, William Cook 1, Tim Dietrich 11, 12, Albino Perego6,7, Amit Poudel5 and Wolfgang Tichy5 􀁂 1 Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 07743 Jena, Germany 2 Institute for Gravitation & the Cosmos, The Pennsylvania State University, University Park, PA 16802, United States of America 3 Department of Physics, The Pennsylvania State University, University Park, PA 16802, United States of America 4 Department of Astronomy & Astrophysics, The Pennsylvania State University, University Park, PA 16802, United States of America 5 Department of Physics, Florida Atlantic University, Boca Raton, FL 33431, United States of America 6 Dipartimento di Fisica, Universitá di Trento, via Sommarive 14, 38123 Trento, Italy 7 INFN-TIFPA, Trento Institute for Fundamental Physics and Applications, via Sommarive 14, 38123 Trento, Italy 8 The Oskar Klein Centre, Department of Astronomy, Stockholm University, AlbaNova, SE-10691 Stockholm, Sweden 9 Department of Physics, University of Athens, 15783 Athens, Greece 10 Centro de Cincias Naturais e Humanas, Universidade Federal do ABC, 09210-170 Santo André, So Paulo, Brazil 11 Institut für Physik und Astronomie, Universität Potsdam, Haus 28, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany 12 Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam, Germany ∗ Author to whom any correspondence should be addressed. Original Content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. 1361-6382/23/085011+30$33 .00 © 2023 The Author(s) . Published by IOP Publishing Ltd Printed in the UK 1 E-mail: [alejandra.gonzalez@uni-jena.de](alejandra.gonzalez@uni-jena.de) Received 9 November 2022; revised 24 February 2023 Accepted for publication 7 March 2023 Published 24 March 2023 Abstract We present the second data release of gravitational waveforms from binary neutron star (BNS) merger simulations performed by the Computational Relativity (CoRe) collaboration. The current database consists of 254 different BNS configurations and a total of 590 individual numerical-relativity simulations using various grid resolutions. The released waveform data contain the strain and the Weyl curvature multipoles up to ℓ = m = 4. They span a significant portion of the mass, mass-ratio, spin and eccentricity parameter space and include targeted configurations to the events GW170817 and GW190425 . CoRe simulatio

FAQs

What does the second CoRe data release provide?

It provides gravitational-waveform data from BNS merger simulations, including strain and Weyl curvature multipoles up to ℓ = m = 4.

How many configurations and simulations are included in the database?

The release contains 254 different BNS configurations and 590 individual numerical-relativity simulations using various grid resolutions.

What kinds of physics and equations of state are used?

CoRe simulations are performed with 18 different equations of state, including finite-temperature models and models accounting for nonhadronic degrees of freedom.

Sep 15, 2026

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