Fundamental Physics Implications for Higher-Curvature Theories from Binary Black Hole Signals in the LIGO-Virgo Catalog GWTC-1

Nair, Remya; Perkins, Scott; Silva, Hector O.; Yunes, Nicolás

doi:10.1103/physrevlett.123.191101

Cited by 163 publications

(153 citation statements)

References 105 publications

(118 reference statements)

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“…Eqs. (29) and (30)), it is worth exploring what the prior looks like when converted from κ to the modified theory coupling constant. In Fig.…”

Section: How Sensitive Are the Results To The Priors?mentioning

confidence: 99%

Constraining gravity with eccentric gravitational waves: projected upper bounds and model selection

Moore¹,

Yunes²

2020

Class. Quantum Grav.

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Gravitational waves allow us to test general relativity in the highly dynamical regime. While current observations have been consistent with waves emitted by quasi-circular binaries, eccentric binaries may also produce detectable signals in the near future with ground-and space-based detectors. We here explore how tests of general relativity scale with the orbital eccentricity of the source during the inspiral of compact objects up to e ∼ 0.8. We use a new, 3rd post-Newtonian-accurate, eccentric waveform model for the inspiral of compact objects, which is fast enough for Bayesian parameter estimation and model selection, and highly accurate for modeling moderately eccentric inspirals. We derive and incorporate the eccentric corrections to this model induced in Brans-Dicke theory and in Einstein-dilaton-Gauss-Bonnet gravity at leading post-Newtonian order, which suggest a straightforward eccentric extension of the parameterized post-Einsteinian formalism. We explore the upper limits that could be set on the coupling parameters of these modified theories through both a confidence-interval-and Bayes-factor-based approach, using a Markov-Chain Monte Carlo and a trans-dimensional, reversible-jump, Markov-Chain Monte Carlo method. We find projected constraints with signals from sources with e ∼ 0.4 that are one order of magnitude stronger than that those obtained with quasi-circular binaries in advanced LIGO. In particular, eccentric gravitational waves detected at design sensitivity should be able to constrain the Brans-Dicke coupling parameter ω 3300 and the Gauss-Bonnet coupling parameter α 1/2 0.5 km at 90% confidence. Although the projected constraint on ω is weaker than other current constraints, the projected constraint on α 1/2 is 10 times stronger than the current gravitational wave bound.

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“…Eqs. (29) and (30)), it is worth exploring what the prior looks like when converted from κ to the modified theory coupling constant. In Fig.…”

Section: How Sensitive Are the Results To The Priors?mentioning

confidence: 99%

Constraining gravity with eccentric gravitational waves: projected upper bounds and model selection

Moore¹,

Yunes²

2020

Class. Quantum Grav.

Self Cite

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“…The results are identical as the near-horizon geometry (3.1) solves the field equations derived from only the parity-even part of the action (3.3) and conserved charges are preserved by consistent dimensional reduction. Analogous to [25], in the reduction we retain the metric components in the three non-compact directions, the dilaton and the scalar field parameterizing the fluctuation of H (3) in the non-compact directions, which are sufficient to capture the BTZ×S 3 solution (3.1). The reduction of B ∧ R ∧ R terms in (3.3) then give rise to the Lorentz Chern-Simons action.…”

Section: Small λ Gb Solutionmentioning

confidence: 99%

“…The recent observations of gravitational waves (GW) from binary black holes [1] and neutron stars [2] mergers have extended the success of GR from the low-velocity, weak gravitational field regime to a highly dynamical regime governed by strong gravity. Interestingly, effects from string-inspired Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons gravity on gravitational wave emission have been seriously considered in exploring modifications to GR, as they result in the emission of scalar dipole (at 1PN) and quadrupole (at 2PN) radiation during the inspiral [3]. This could potentially revive interest in higher-derivative extended gravity models with a string theory origin with the advantage that, given a compactification scheme, the lower dimension couplings are fixed, thus increasing verifiability of the model.…”

Section: Introductionmentioning

confidence: 99%

Rotating strings in six-dimensional higher-derivative supergravity

Chow

Pang

2019

Phys. Rev. D

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We construct the first rotating string solution in 6-dimensional Einstein-Gauss-Bonnet supergravity, carrying both electric and magnetic charges. By embedding the known rotating string solution of the 2-derivative theory into 6-dimensional off-shell supergravity, the Killing spinors associated with the underlying supersymmetry can be made off-shell and are universal to all off-shell supergravity models based on the same field content. The near-horizon geometry is S 3 fibred over the extremal BTZ black hole, locally isomorphic to AdS 3 ×S 3 . We compute the higher-derivative corrections to the Brown-Henneaux central charges in a particular R + R 2 model resulting from K3 compactification of type IIA string theory.

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“…The latter allows one to test how consistent the obtained signal is with the predictions of GR as a whole, granting a gauge on how much the inspiral and merger-ringdown signals agree. Specifically, we present current and projected bounds on the Einstein dilaton Gauss-Bonnet (EdGB) [25,26], dynamical Chern-Simons (dCS) [27][28][29][30], scalar-tensor theories [31,32], noncommutative theories [33,34], time-varying G theories [35][36][37], time-varying BH mass theories [38,39], and massive gravity [40][41][42][43]. We discuss the current constraints and progress, followed byy estimated future bounds.…”

Section: Introductionmentioning

confidence: 99%

Parameterized and Consistency Tests of Gravity with GravitationalWaves: Current and Future

Carson

Yagi

2019

Recent Progress in Relativistic Astrophysics

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Gravitational wave observations offer unique opportunities to probe gravity in the strong and dynamical regime, which was difficult to access previously. We here review two theory-agnostic ways to carry out tests of general relativity with gravitational waves, namely (i) parameterized waveform tests and (ii) consistency tests between the inspiral and merger-ringdown portions. For each method, we explain the formalism, followed by results from existing events, and finally we discuss future prospects with upgraded detectors, including the possibility of using multi-band gravitational-wave observations with ground-based and space-borne interferometers. We show that such future observations have the potential to improve upon current bounds on theories beyond general relativity by many orders of magnitude. We conclude by listing several open questions that remain to be addressed.

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Fundamental Physics Implications for Higher-Curvature Theories from Binary Black Hole Signals in the LIGO-Virgo Catalog GWTC-1

Cited by 163 publications

References 105 publications

Constraining gravity with eccentric gravitational waves: projected upper bounds and model selection

Constraining gravity with eccentric gravitational waves: projected upper bounds and model selection

Rotating strings in six-dimensional higher-derivative supergravity

Parameterized and Consistency Tests of Gravity with GravitationalWaves: Current and Future

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