Gravitational wave propagation beyond general relativity: waveform distortions and echoes

@article{Ezquiaga2021GravitationalWP,
  title={Gravitational wave propagation beyond general relativity: waveform distortions and echoes},
  author={Jose Mar{\'i}a Ezquiaga and Wayne Hu and Macarena Lagos and Meng-Xiang Lin},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2021}
}
We study the cosmological propagation of gravitational waves (GWs) beyond general relativity (GR) across homogeneous and isotropic backgrounds. We consider scenarios in which GWs interact with an additional tensor field and use a parametrized phenomenological approach that generically describes their coupled equations of motion. We analyze four distinct classes of derivative and non-derivative interactions: mass, friction, velocity, and chiral. We apply the WKB formalism to account for the… 
Modified gravitational wave propagation with higher modes and its degeneracies with lensing
. Low-energy alternatives to General Relativity (GR) generically modify the phase of gravitational waves (GWs) during their propagation. As detector sensitivities increase, it becomes key to

References

SHOWING 1-10 OF 85 REFERENCES
Probing cosmological fields with gravitational wave oscillations
Gravitational wave (GW) oscillations occur whenever there are additional tensor modes interacting with the perturbations of the metric coupled to matter. These extra modes can arise from new spin-2
Non-trivial gravitational waves and structure formation phenomenology from dark energy
The detection of the GW170817/GRB170817A event improved the constraints on the propagation speed of gravitational waves, thus placing possible variations caused by dark energy under restraint. For
Testing modified gravity at cosmological distances with LISA standard sirens
Modifications of General Relativity leave their imprint both on the cosmic expansion history through a non-trivial dark energy equation of state, and on the evolution of cosmological perturbations in
Constraining the propagation speed of gravitational waves with compact binaries at cosmological distances
When testing gravity in a model-independent way, one of the crucial tests is measuring the propagation speed of a gravitational wave (GW). In general relativity, a GW propagates with the speed of
Testing the general theory of relativity using gravitational wave propagation from dark standard sirens
Alternative theories of gravity predict modifications in the propagation of gravitational waves (GW) through space-time. One of the smoking-gun predictions of such theories is the change in the GW
Breaking a Dark Degeneracy with Gravitational Waves
We identify a scalar-tensor model embedded in the Horndeski action whose cosmological background and linear scalar fluctuations are degenerate with the concordance cosmology. The model admits a
Generalized framework for testing gravity with gravitational-wave propagation. II. Constraints on Horndeski theory
Gravitational waves (GW) are generally affected by modification of a gravity theory during propagation in cosmological distance. We numerically perform a quantitative analysis on Horndeski theory at
Fundamental theoretical bias in gravitational wave astrophysics and the parametrized post-Einsteinian framework
We consider the concept of fundamental bias in gravitational wave astrophysics as the assumption that general relativity is the correct theory of gravity during the entire wave-generation and
Dark Energy in Light of Multi-Messenger Gravitational-Wave Astronomy
Gravitational waves (GWs) provide a new tool to probe the nature of dark energy (DE) and the fundamental properties of gravity. We review the different ways in which GWs can be used to test gravity
Waveform of gravitational waves in the general parity-violating gravities
As an extension of our previous work [J.Qiao, T.Zhu, W.Zhao & A.Wang, arXiv:1909.03815], in this article, we calculate the effects of parity violation on gravitational-wave (GW) waveforms during
...
1
2
3
4
5
...