Is<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi></mml:math>enough? Comparison of gravitational waves emitted along the total angular momentum direction with other preferred orientations

O’Shaughnessy, R.; Healy, J.; London, L. T.; Meeks, Zachary; Shoemaker, D. M.

doi:10.1103/physrevd.85.084003

Cited by 21 publications

(16 citation statements)

References 53 publications

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“…As suggested by Figure 5, higher harmonics are at least as important as (and difficult to disentangle from) spin precession effects. Our calculations support previous results suggesting that the observationally-accessible information requires detailed models for several harmonics, beyond the leading order [25,26].…”

Section: B Limitations Of Nonprecessing Analogs and Synthetic Precessupporting

confidence: 89%

“…Our study emphasized reproducing the principal l = 2 emission from merging binaries; generic asymmetric precessing systems possess several strong higher harmonics, many of which must be included to accurately reproduce even a nonprecessing source [25]. Our calculations support previous results suggesting that the observationally-accessible information requires detailed models for several harmonics, beyond the leading order [25,26]. We anticipate detailed parameter estimation of high-mass (M > 100M ) binary mergers will require detailed modeling of multiple modes of generically precessing binaries, an effort in support of which a considerably larger sample of generic binary mergers are required.…”

Section: Discussionsupporting

confidence: 76%

“…The synthetic procedure described above also neglects higher harmonics. Higher harmonics are well-known to produce observationally-accessible modulations of the gravitational wave signal along generic lines of sight for generic high-mass mergers [25,26]. As suggested by Figure 5, higher harmonics are at least as important as (and difficult to disentangle from) spin precession effects.…”

Section: B Limitations Of Nonprecessing Analogs and Synthetic Precesmentioning

confidence: 97%

“…The mass range is chosen at the low end to avoid the use of hybrid waveforms in this study, and at the high end to ensure the inclusion of ringdown. Motivated by data analysis, we compare signals with a complex "overlap", maximized over time and polarization [26,27]; see Appendix A for a brief review. We adopt a fiducial advanced LIGO noise curve (zero detuned high power; see [28]) and perform integrals over 5 − 2000 Hz.…”

Section: Executive Summary and Detailed Outlinementioning

confidence: 99%

“…Following previous studies [14,26,27], we use a complex overlap to assess the observationally-relevant differences between two signals a, b…”

Section: B Comparing a Corotating Mode With A Phenomenological Modelmentioning

confidence: 99%

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Comparing gravitational waves from nonprecessing and precessing black hole binaries in the corotating frame

et al. 2013

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Previous analytic and numerical calculations suggest that, at each instant, the emission from a precessing black hole binary closely resembles the emission from a nonprecessing analog. In this paper we quantitatively explore the validity and limitations of that correspondence, extracting the radiation from a large collection of 224 generic black hole binary merger simulations both in the simulation frame and in a corotating frame that tracks precession. To a first approximation, the corotating-frame waveforms resemble nonprecessing analogs, based on similarity over a band-limited frequency interval defined using a fiducial detector (here, advanced LIGO) and the source's total mass M . By restricting attention to masses M ∈ 100, 1000M , we insure our comparisons are sensitive only to our simulated late-time inspiral, merger, and ringdown signals. In this mass region, every one of our precessing simulations can be fit by some physically similar member of the IMRPhenomB phenomenological waveform family to better than 95%; most fit significantly better. The best-fit parameters at low and high mass correspond to natural physical limits: the pre-merger orbit and post-merger perturbed black hole. Our results suggest that physically-motivated synthetic signals can be derived by viewing radiation from suitable nonprecessing binaries in a suitable nonintertial reference frame. While a good first approximation, precessing systems have degrees of freedom (i.e., the transverse spins) which a nonprecessing simulation cannot reproduce. We quantify the extent to which these missing degrees of freedom limit the utility of synthetic precessing signals for detection and parameter estimation.

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Section: B Limitations Of Nonprecessing Analogs and Synthetic Precessupporting

confidence: 89%

Section: Discussionsupporting

confidence: 76%

Section: B Limitations Of Nonprecessing Analogs and Synthetic Precesmentioning

confidence: 97%

Section: Executive Summary and Detailed Outlinementioning

confidence: 99%

“…Following previous studies [14,26,27], we use a complex overlap to assess the observationally-relevant differences between two signals a, b…”

Section: B Comparing a Corotating Mode With A Phenomenological Modelmentioning

confidence: 99%

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Comparing gravitational waves from nonprecessing and precessing black hole binaries in the corotating frame

et al. 2013

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Analytical meets numerical relativity: status of complete gravitational waveform models for binary black holes

Ohme

2012

Class. Quantum Grav.

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Models of gravitational waveforms from coalescing black-hole binaries play a crucial role in the efforts to detect and interpret the signatures of those binaries in the data of large-scale interferometers. Here we summarize recent models that combine information both from analytical approximations and numerical relativity. We briefly lay out and compare the strategies employed to build such complete models and we recapitulate the errors associated with various aspects of the modelling process.

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The NINJA-2 project: detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations

Aasi

Abbott

et al. 2014

Class. Quantum Grav.

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The Numerical INJection Analysis (NINJA) project is a collaborative effort between members of the numerical relativity and gravitational-wave (GW) astrophysics communities. The purpose of NINJA is to study the ability to detect GWs emitted from merging binary black holes (BBH) and recover their parameters with next-generation GW observatories. We report here on the results of the second NINJA project, NINJA-2, which employs 60 complete BBH hybrid waveforms consisting of a numerical portion modelling the late inspiral, merger, and ringdown stitched to a post-Newtonian portion modelling the early inspiral. In a 'blind injection challenge' similar to that conducted in recent Laser Interferometer Gravitational Wave Observatory (LIGO) and Virgo science runs, we added seven hybrid waveforms to two months of data recoloured to predictions of Advanced LIGO (aLIGO) and Advanced Virgo (AdV) sensitivity curves during their first observing runs. The resulting data was analysed by GW detection algorithms and 6 of the waveforms were recovered with false alarm rates smaller than 1 in a thousand years. Parameter-estimation algorithms were run on each of these waveforms to explore the ability to constrain the masses, component angular momenta and sky position of these waveforms. We find that the strong degeneracy between the mass ratio and the BHs' angular momenta will make it difficult to precisely estimate these parameters with aLIGO and AdV. We also perform a large-scale Monte Carlo study to assess the ability to recover each of the 60 hybrid waveforms with early aLIGO and AdV sensitivity curves. Our results predict that early aLIGO and AdV will have a volume-weighted average sensitive distance of 300 Mpc (1 Gpc) for 10M +10M (50M +50M ) BBH coalescences. We demonstrate that neglecting the component angular momenta in the waveform models used in matched-filtering will result in a reduction in sensitivity for systems with large component angular momenta. This reduction is estimated to be up to ∼15% for 50M + 50M BBH coalescences with almost maximal angular momenta aligned with the orbit when using early aLIGO and AdV sensitivity curves.

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IsJenough? Comparison of gravitational waves emitted along the total angular momentum direction with other preferred orientations

Cited by 21 publications

References 53 publications

Comparing gravitational waves from nonprecessing and precessing black hole binaries in the corotating frame

Comparing gravitational waves from nonprecessing and precessing black hole binaries in the corotating frame

Analytical meets numerical relativity: status of complete gravitational waveform models for binary black holes

The NINJA-2 project: detecting and characterizing gravitational waveforms modelled using numerical binary black hole simulations

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