A Reproducible Black Hole-Neutron Star Merger Gallery Example for the Einstein Toolkit

arXiv:2603.07374 · astro-ph.HE, gr-qc · Submitted 2026-03-07 · Read on arXiv

astro-ph.HE, gr-qc

Submitted: 2026-03-07

Updated: 2026-08-26

Comments: 13 pages, 8 figures, 1 table. Accepted for publication in Physica Scripta. Link to the gallery: https://einsteintoolkit.org/gallery/bhns/index.html

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Initial Data — 5× in this paper · explained in 2 episodes
• Einstein Telescope — 3× in this paper
• Robustness — 2× in this paper · explained in 5 episodes
• Apparent Horizon — 1× in this paper · explained in 1 episode
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Science and Technology Facility Council — 1× in this paper

Sources

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Observation of gravitational waves from two neutron star-black hole coalescences
• Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger
• A brief overview of black hole-neutron star mergers
• Coalescence of black hole--neutron star binaries
• Observation of Gravitational Waves from the Coalescence of a 2.5-4.5 M Compact Object and a Neutron Star
• Black Hole-Neutron Star Binaries near Neutron Star Disruption Limit in the Mass Regime of Event GW230529
• Signatures of Low Mass Black Hole-Neutron Star Mergers
• Impact of black hole spin on low-mass black hole-neutron star mergers
• Large Eddy Simulations of Magnetized Mergers of Black Holes and Neutron Stars
• Implications of Magnetic Flux-Disk Mass Correlation in Black Hole-Neutron Star Mergers for GRB sub-populations
• Black hole - neutron star binaries with high spins and large mass asymmetries: II. Properties of dynamical simulations
• Black-hole - neutron-star mergers: new numerical-relativity simulations and multipolar effective-one-body model with spin precession and eccentricity
• Challenging a binary neutron star merger interpretation of GW230529
• Numerical simulations of black hole-neutron star mergers with equal and near-equal mass ratios
• Simulating coalescing compact binaries by a new code SACRA
• Sub-radian-accuracy gravitational waveforms of coalescing binary neutron stars in numerical relativity
• An efficient shock-capturing central-type scheme for multidimensional relativistic flows. II. Magnetohydrodynamics
• Primitive Variable Solvers for Conservative General Relativistic Magnetohydrodynamics
• IllinoisGRMHD: An Open-Source, User-Friendly GRMHD Code for Dynamical Spacetimes

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• XRISM Resolve Spectroscopy of GX 5-1: Constraints on Iron Spectral Features in a Luminous Neutron-Star Binary
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