Abstract
We present the computational relativity (CoRe) collaboration’s public database of gravitational waveforms from binary neutron star mergers. The database currently contains 367 waveforms from numerical simulations that are consistent with general relativity and that employ constraint satisfying initial data in hydrodynamical equilibrium. It spans 164 physically distinct configuration with different binary parameters (total binary mass, mass-ratio, initial separation, eccentricity, and stars’ spins) and simulated physics. Waveforms computed at multiple grid resolutions and extraction radii are provided for controlling numerical uncertainties. We also release an exemplary set of 18 hybrid waveforms constructed with a state-of-art effective-one-body model spanning the frequency band of advanced gravitational-wave detectors. We outline present and future applications of the database to gravitational-wave astronomy.
Highlights
We present the Computational Relativity (CoRe) collaboration’s public database of gravitational waveforms from binary neutron star mergers
The database currently contains 367 waveforms from numerical simulations that are consistent with general relativity and that employ constraint satisfying initial data in hydrodynamical equilibrium
The era of gravitational-wave (GW) astronomy has been inaugurated with the direct detection of GWs from binary black hole (BBH) mergers [1–5] soon followed by the breakthrough observation of GWs and electromagnetic (EM) signals from a binary neutron star (BNS) collision [6–9]
Summary
The database currently contains 367 waveforms from numerical simulations that are consistent with general relativity and that employ constraint satisfying initial data in hydrodynamical equilibrium. It spans 164 physically distinct configuration with different binary parameters (total binary mass, mass-ratio, initial separation, eccentricity, and stars’ spins) and simulated physics. Different NR groups have publicly released BBH simulation data [10–12] These catalogs have been the cornerstone of many scientific results. The combined set of simulations required about 150 million CPU-hours on supercomputers in Europe and the United States We publicly release these data with the goal of supporting researchers and further developments in the field of GW astronomy (www.computational-relativity.org).
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