Challenges to Self-Acceleration in Modified Gravity from Gravitational Waves and Large-Scale Structure

@article{Lombriser2017ChallengesTS,
  title={Challenges to Self-Acceleration in Modified Gravity from Gravitational Waves and Large-Scale Structure},
  author={Lucas Lombriser and N. A. Lima},
  journal={Physics Letters B},
  year={2017},
  volume={765},
  pages={382-385}
}
View PDF on arXiv
229 Citations
Highly Influential Citations
2
Background Citations
58
Methods Citations
8
Results Citations
3

229 Citations

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…

Direct detection of gravitational waves can measure the time variation of the Planck mass

The recent discovery of a γ-ray counterpart to a gravitational wave event has put extremely stringent constraints on the speed of gravitational waves at the present epoch. In turn, these constraints…

Fate of Large-Scale Structure in Modified Gravity After GW170817 and GRB170817A.

TLDR
It is shown that the dark-matter growth rate must now be at least as fast as in general relativity (GR), with the possible exception of that beyond the Horndeski model, and if there is any scale dependence at all in the slip parameter, it is such that it takes the GR value at large scales.

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…

Self-accelerating universe in scalar-tensor theories after GW170817

The recent simultaneous detection of gravitational waves and a gamma-ray burst from a neutron star merger significantly shrank the space of viable scalar-tensor theories by demanding that the speed…

Constraints on Born-Infeld gravity from the speed of gravitational waves after GW170817 and GRB 170817A

The observations of gravitational waves from the binary neutron star merger event GW170817 and the subsequent observation of its electromagnetic counterparts from the gamma-ray burst GRB 170817A…

Mimicking dark matter and dark energy in a mimetic model compatible with GW170817

Astrophysical gravitational waves in conformal gravity

We investigate the gravitational radiation from binary systems in conformal gravity (CG) and massive conformal gravity (MCG). CG might explain observed galaxy rotation curves without dark matter, and…

Hidden-sector modifications to gravitational waves from binary inspirals

Gravitational wave astronomy has placed strong constraints on fundamental physics, and there is every expectation that future observations will continue to do so. In this work we quantify this…
...

References

SHOWING 1-10 OF 43 REFERENCES

Cosmological tests of modified gravity

  • K. Koyama
  • Physics
    Reports on progress in physics. Physical Society
  • 2016
TLDR
An overview of recent developments in modified gravity theories including f(R) gravity, braneworld gravity, Horndeski theory and massive/bigravity theory is given and how to test modifications of gravity on cosmological scales is discussed.

Confirmation of general relativity on large scales from weak lensing and galaxy velocities

TLDR
A test of the applicability of general relativity on cosmological length scales using a quantity that combines measures of large-scale gravitational lensing, galaxy clustering and structure growth rate, reports that EG = 0.39 ± 0.06 on length scales of tens of megaparsecs, in agreement with the general relativistic prediction.

Constraints on f(R) gravity from probing the large-scale structure

We study cosmological constraints on metric f(R) gravity models that are designed to reproduce the LCDM expansion history with modifications to gravity described by a supplementary cosmological…

Probing gravity at cosmological scales by measurements which test the relationship between gravitational lensing and matter overdensity.

TLDR
Planned surveys will be able to measure E(G), an observational quantity whose expectation value is equal to the ratio of the Laplacian of the Newtonian potentials to the peculiar velocity divergence, to percent accuracy.

Anisotropic stress as a signature of nonstandard propagation of gravitational waves.

TLDR
It is shown that in cosmological solutions of very general classes of models extending gravity-all scalar-tensor theories, Einstein-aether models, and bimetric massive gravity-a direct correspondence exists between perfect fluids apparently carrying anisotropic stress and a modification in the propagation of gravitational waves.

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that…

Modified Gravity and Cosmology

No-go theorems for generalized chameleon field theories.

TLDR
It is proved two theorems limiting its cosmological impact: the Compton wavelength of such a scalar can be at most ~/= 1 MPc at the present cosmic density, which restricts its impact to nonlinear scales, and the conformal factor relating Einstein- and Jordan-frame scale factors is essentially constant over the last Hubble time, which precludes the possibility of self-acceleration.

Beyond the Cosmological Standard Model

Evading the Vainshtein Mechanism with Anomalous Gravitational Wave Speed: Constraints on Modified Gravity from Binary Pulsars.

TLDR
By using observations of the Hulse-Taylor pulsar, the gravitational wave speed is constrain to the level of 10(-2), which allows us to directly constrain the cosmological couplings in the effective field theory of dark energy formalism.