Improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors
By A. Boh'e, Lijing Shao, A. Taracchini, A. Buonanno, Stanislav Babak, Ian Harry, Ian Hinder, S. Ossokine, M. Purrer, V. Raymond and 10 more. 2016
404 citations recorded by the source corpus.
We improve the accuracy of the effective-one-body (EOB) waveforms that were employed during the first observing run of Advanced LIGO for binaries of spinning, nonprecessing black holes by calibrating them to a set of 141 numerical-relativity (NR) waveforms. The NR simulations expand the domain of calibration toward larger mass ratios and spins, as compared to the previous EOBNR model. Merger-ringdown waveforms computed in black-hole perturbation theory for Kerr spins close to extremal provide additional inputs to the calibration. For the inspiral-plunge phase, we use a Markov-chain Monte Carlo algorithm to efficiently explore the calibration space. For the merger-ringdown phase, we fit the NR signals with phenomenological formulae. After extrapolation of the calibrated model to arbitrary mass ratios and spins, the (dominant-mode) EOBNR waveforms have faithfulness—at design Advanced-LIGO sensitivity—above 99% against all the NR waveforms, including 16 additional waveforms used for validation, when maximizing only on initial phase and time. This implies a negligible loss in event rate due to modeling for these binary configurations. We find that future NR simulations at mass ratios ≳4 and double spin ≳0.8 will be crucial to resolving discrepancies between different ways of extrapolating waveform models. We also find that some of the NR simulations that already exist in such region of parameter space are too short to constrain the low-frequency portion of the models. Finally, we build a reduced-order version of the EOBNR model to speed up waveform generation by orders of magnitude, thus enabling intensive data-analysis applications during the upcoming observation runs of Advanced LIGO.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/bf777e879b0c41e28748180a566f6173505a5576
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Citations in the corpus
- A Future Percent-level Measurement of the Hubble Expansion at Redshift 0.8 with Advanced LIGO (2019, background): “Using parameterized models of these waveforms (Taracchini et al. 2014; Khan et al. 2016; Bohé et al. 2017; Chatziioannou et al. 2017), it will be possible to measure the detector-frame masses with ~20% uncertainty and luminosity distances (Hogg 1999) with ~50% uncertainty for a source near the…”
- Bayesian inference for compact binary coalescences with bilby: validation and application to the first LIGO–Virgo gravitational-wave transient catalogue (2020, background): “…computationally expensive to evaluate, e.g., time-domain signal models such as spin-precessing effective-one-body models with higher-order modes (Bohé et al. 2017; Ossokine et al. 2020), numerical-relativity surrogate models (Blackman et al. 2017) and models including tidal effects (Nagar et…”
- Denoising Gravitational Waves with Enhanced Deep Recurrent Denoising Auto-encoders (2017, methodology): “We use simulated GWs describe binary black hole (BBH) mergers, generated with the waveform model introduced in [15], which is available in LIGO’s Algorithm Library [16].”
- GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run (2020, methodology): “The SEOBNRv4_opt aligned-spin waveform model [157] is used for the simulated signals.”
- GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run (2021, methodology): “For the vast majority of the events reported both in this section and in the Appendix, the quoted source properties are taken from a set of posterior samples constructed from the two IMRPhenomXPHM and SEOBNRv4PHM analyses with each given equal weight.”
- High-energy gravitational scattering and the general relativistic two-body problem (2017, background): “The recent observation [1–4] of gravitational wave signals from inspiralling and coalescing binary black holes has been significantly helped, from the theoretical side, by the availability of a large bank of waveform templates, defined [5, 6] within the analytical effective one-body (EOB) formalism ”
- Surrogate model of hybridized numerical relativity binary black hole waveforms (2018, background): “SEOBNRv4_ROM [17], a Fourier domain reducedorder model (ROM) version of SEOBNRv4.”