Dataset Open Access

Binary black-hole surrogate waveform catalog

Scott E. Field; Chad R. Galley; Jan S. Hesthaven; Jason Kaye; Manuel Tiglio; Jonathan Blackman; Béla Szilágyi; Mark A. Scheel; Daniel A. Hemberger; Patricia Schmidt; Rory Smith; Christian D. Ott; Michael Boyle; Lawrence E. Kidder; Harald P. Pfeiffer; Vijay Varma

This repository contains all publicly available numerical relativity surrogate data for waveforms produced by the Spectral Einstein Code. The base method for building surrogate models can be found in Field et al., PRX 4, 031006 (2014).

Several numerical relativity surrogate models are currently available in this catalog:

  • Current models
    1. NRSur7dq4.h5 — This is a surrogate model for binary black hole mergers with generic spins and mass ratios up to 4. A paper describing it can be found at Varma et al., arxiv:1905.09300. It is evaluated with the gwsurrogate Python package, which can be found on PyPI. Instructions for evaluating this surrogate can be found at this example IPython code.

    2. NRHybSur3dq8.h5 — This is a surrogate model for binary black hole systems with generic mass ratios but restricted to nonprecessing spins. Before constructing the surrogate, the NR waveforms are hybridized with post-Newtonian waveforms to include the early inspiral. Therefore this model covers the full stellar mass range for ground-based detectors. A paper describing it can be found at Varma et al., PRD 99, 064045 (2019).  It is evaluated with the gwsurrogate Python package, which can be found on PyPI. Instructions for evaluating this surrogate can be found this example IPython code.

    3. NRSur7dq4Remnant — This is a surrogate model for mass, spin, and recoil kick velocity of the remnant BH left behind in generically precessing binary black hole mergers, with mass ratios up to 4. A paper describing it can be found at Varma et al., arxiv:1905.09300. It is evaluated with the surfinBH Python package, which can be found on PyPI. Installation instructions and an ipython help notebook can be found in the same link.

  • Older models
    1. SpEC_q1_10_NoSpin_nu5thDegPoly_exclude_2_0.h5 — A surrogate model for binary black hole mergers with non-spinning black holes. This is described in Blackman et al., PRL 115, 121102 (2015). It is evaluated with the gwsurrogate python package, which can be found on PyPI. Instructions for evaluating this surrogate can be found in tutorials included with the gwsurrogate package and in this example IPython code.

    2. NRSur4d2s_FDROM_grid12.h5 and NRSur4d2s_TDROM_grid12.h5 — These are fast frequency-domain and time-domain (respectively) surrogate models for binary black hole mergers where the black holes may be spinning, but the spins are restricted to a parameter subspace which includes some but not all precessing configurations. NRSur4d2s_FDROM_grid12.h5 is the NRSur4d2s_FDROM model described in Blackman et al., PRD 95, 104023, (2017), and NRSur4d2s_TDROM_grid12.h5 is built from the underlying (slower) NRSur4d2s time-domain model in the same way but without the FFTs. These surrogates are also evaluated using gwsurrogate, and a tutorial can be found in this example IPython code.

    3. NRSur7dq2.h5 — This is a surrogate model for binary black hole mergers with generic spins. A paper describing it can be found at Blackman et al., PRD 96, 024058 (2017). This surrogate is evaluated through a standalone python package contained in NRSur7dq2.tar.gz, which has simple installation instructions in its README file. A tutorial can be found for evaluating this surrogate in this example IPython code.

 

 

If you find these surrogate models useful in your own research please cite the Field et al., PRX (2014) paper as well as the relevant paper describing the specific numerical relativity surrogate model, if available (e.g., the Blackman et al. 2015 paper for non-spinning binary black hole coalescences).

Caveats:

  1. Evaluating surrogate models outside of the ranges they were trained upon may give inaccurate results. Please use with caution when extrapolating.

  2. The surrogate data available here for non-spinning binary black holes produced in Blackman et al. 2015 contains the (2,0) mode. However, this mode was not used in the paper. While this surrogate can predict a (2,0) mode, current numerical relativity simulations may not yet be able to accumulate (non-oscillatory) Christodoulou memory sufficiently. The surrogate (2,0) mode is founded upon basis SpEC waveforms that have been hybridized with leading order post-Newtonian waveforms. Therefore, the (2,0) mode can be included in the mode’s output but should be used with caution. Currently, the default option to evaluate this surrogate (using GWSurrogate) is to exclude all m=0 modes.

Files (20.0 GB)
Name Size
GWSurrogate_example.html
md5:ab3c4cbfc5813e451d24faea232b8985
297.1 kB Download
NRHybSur3dq8.h5
md5:b42cd577f497b1db3da14f1e4ee0ccd1
212.9 MB Download
NRHybSur3dq8.html
md5:434410a5bdfd8daf6ca5f03ed3e87eac
458.8 kB Download
NRSur4d2s_FDROM_grid12.h5
md5:ec8bf594c36ba76e1198dfc01ee1861f
9.9 GB Download
NRSur4d2s_TDROM_grid12.h5
md5:44fba833b6b3a0f269fc788df181dfd4
9.4 GB Download
NRSur4d2s_tutorial.html
md5:13d56aac42fece1c5f1598c4f64888ef
388.0 kB Download
NRSur7dq2.h5
md5:f937c66eb234471820ad25c8af51497a
11.3 MB Download
NRSur7dq2.tar.gz
md5:9b97a244918de63bb0f4f8b351769690
16.3 kB Download
NRSur7dq2_tutorial.html
md5:717bc84e4c9bdc8488939a9dcefdb3c1
494.4 kB Download
NRSur7dq4.h5
md5:8e033ba4e4da1534b3738ae51549fb98
17.5 MB Download
NRSur7dq4.html
md5:25c9c80b2101a88f82315db0857d1cc3
574.2 kB Download
remnant_fits/fit_3dq8.h5
md5:929a3604167482394252f04f1a95c509
453.7 kB Download
remnant_fits/fit_7dq2.h5
md5:8ef5d1deb586651b5fbea1aa414f5594
44.9 MB Download
remnant_fits/fit_7dq4.h5
md5:a54e41ecff465a427b32674c0a40a05e
131.6 MB Download
SpEC_q1_10_NoSpin_nu5thDegPoly_exclude_2_0.h5
md5:4d08862a85437e76a1634dae6d984fdb
211.1 MB Download
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