Gravitational wave constraints on Einstein-æther theory with LIGO/Virgo data
arXiv:2304.06801 · doi:10.1103/PhysRevD.108.104053
Abstract
Lorentz symmetry is a fundamental property of Einstein's theory of general relativity that one may wish to test with gravitational wave observations. Einstein-aether theory is a model that introduces Lorentz-symmetry breaking in the gravitational sector through an aether vector field, while still leading to second-order field equations. This well-posed theory passes particle physics constraints because it modifies directly only the gravitational sector, yet it predicts deviations in the inspiral and coalescence of compact objects. We here, for the first time, put this theory to the test by comparing its gravitational wave predictions directly against LIGO/Virgo gravitational wave data. We construct a waveform model for Einstein-aether theory, EA_IMRPhenomD_NRT, through modifications of the general relativity IMRPhenomD_NRTidalv2 model (used by the LIGO/VIRGO collaboration). This model constructs a reponse function that not only contains the transverse-traceless polarization, but also additional Einstein-aether (scalar and vectorial) polarizations simultaneously. We then use the many current constraints on the theory to construct non-trivial priors for the Einstein-aether coupling constants. After testing the waveform model, we conduct parameter estimation studies on two gravitational wave events: GW170817 and GW190425. We find that these data are not sufficiently informative to place constraints on the theory that are stronger than current bounds from binary pulsar, solar system and cosmological observations. This is because, although Einstein-aether modifications include additional polarizations and have been computed beyond leading post-Newtonian order, these modifications are dominated by (already-constrained) dipole effects. These difficulties make it unclear whether future gravitational wave observations will be able to improve on current constraints on Einstein-aether theory.
arXiv comment32 pages, 24 figures; replaced with accepted version
References in corpus (46)
- Modified Gravity and Cosmology
- The Confrontation between General Relativity and Experiment
- Gravitational Waves and Gamma-rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
- GW190425: Observation of a Compact Binary Coalescence with Total Mass
- Properties of the binary neutron star merger GW170817
- Frequency-domain gravitational waves from non-precessing black-hole binaries. II. A phenomenological model for the advanced detector era
- Modern tests of Lorentz invariance
- Robust parameter estimation for compact binaries with ground-based gravitational-wave observations using the LALInference software library
- Gravity with a dynamical preferred frame
- Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog
- Frequency-domain gravitational waves from non-precessing black-hole binaries. I. New numerical waveforms and anatomy of the signal
- Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo
- I-Love-Q Relations in Neutron Stars and their Applications to Astrophysics, Gravitational Waves and Fundamental Physics
- I-Love-Q
- Gravitational Wave Tests of General Relativity with Ground-Based Detectors and Pulsar Timing Arrays
- Einstein-Aether Waves
- Approximate Universal Relations for Neutron Stars and Quark Stars
- Lorentz-Violating Vector Fields Slow the Universe Down
- Systematic and statistical errors in a bayesian approach to the estimation of the neutron-star equation of state using advanced gravitational wave detectors
- Improving the NRTidal model for binary neutron star systems
- Model-Independent Test of General Relativity: An Extended post-Einsteinian Framework with Complete Polarization Content
- Matter imprints in waveform models for neutron star binaries: tidal and self-spin effects
- Constraining the New Aether: Gravitational Cherenkov Radiation
- Constraints on Einstein-Æther theory and Horava gravity from binary pulsar observations
- Post-Newtonian parameters and constraints on Einstein-aether theory
- Equation-of-state-independent relations in neutron stars
- Quadratic-in-spin effects in the orbital dynamics and gravitational-wave energy flux of compact binaries at the 3PN order
- Constraints on binary neutron star merger product from short GRB observations
- Testing the binary black hole nature of a compact binary coalescence
- Ready-to-use post-Newtonian gravitational waveforms for binary black holes with non-precessing spins: An update
- Strong Binary Pulsar Constraints on Lorentz Violation in Gravity
- Measuring the neutron star tidal deformability with equation-of-state-independent relations and gravitational waves
- Improved gravitational-wave constraints on higher-order curvature theories of gravity
- A tapering window for time-domain templates and simulated signals in the detection of gravitational waves from coalescing compact binaries
- Undoing the twist: the Hořava limit of Einstein-aether
- Binary Love Relations
- Strong field effects on binary systems in Einstein-aether theory
- Radiation Damping in Einstein-Aether Theory
- Frequency-domain gravitational waveform models for inspiraling binary neutron stars
- A positive energy theorem for Einstein-aether and Hořava gravity
- Equation-of-state insensitive relations after GW170817
- Approximate Universal Relations among Tidal Parameters for Neutron Star Binaries
- Energy in the Einstein-Aether Theory
- Projected Constraints on Lorentz-Violating Gravity with Gravitational Waves
- New binary pulsar constraints on Einstein-æther theory after GW170817
- Well-posed Cauchy formulation for Einstein-æther theory
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- Possible Causes of False General Relativity Violations in Gravitational Wave Observations
- Systematic biases due to waveform mismodeling in parametrized post-Einsteinian tests of general relativity: The impact of neglecting spin precession and higher modes
- Polarization modes of gravitational waves in general Einstein-vector theory
- Revisiting linear stability of black hole odd-parity perturbations in Einstein-Aether gravity
- Neural Post-Einsteinian Test of General Relativity with the Third Gravitational-Wave Transient Catalog
- Eikonal gravitational-wave lensing in Einstein-aether theory
- Tests of scalar polarizations with multi-messenger events