Gravitational wave lensing beyond general relativity: Birefringence, echoes, and shadows

@article{Ezquiaga2020GravitationalWL,
  title={Gravitational wave lensing beyond general relativity: Birefringence, echoes, and shadows},
  author={Jose Mar{\'i}a Ezquiaga and Miguel Zumalac'arregui},
  journal={Physical Review D},
  year={2020}
}
Gravitational waves (GW), as light, are gravitationally lensed by intervening matter, deflecting their trajectories, delaying their arrival and occasionally producing multiple images. In theories beyond general relativity (GR), new gravitational degrees of freedom add an extra layer of complexity and richness to GW lensing. We develop a formalism to compute GW propagation beyond GR over general space-times, including kinetic interactions with new fields. Our framework relies on identifying the… 

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References

SHOWING 1-10 OF 44 REFERENCES

The scalar-tensor theory of gravitation

The scalar-tensor theory of gravitation is one of the most popular alternatives to Einstein's theory of gravitation. This book provides a clear and concise introduction to the theoretical ideas and

I and i

TLDR
There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.

LIGO Scientific, Virgo)

  • Phys. Rev. Lett. 125,
  • 2020

Phys

  • Rev. D95, 084029
  • 2017

Phys

  • Rev. D97, 104038
  • 2018

LIGO Scientific, Virgo), Astrophys

  • J. Lett. 882,
  • 2019

and s

I and J

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

TLDR
Monthly Notices is one of the three largest general primary astronomical research publications and this article 1 describes its publication policy and practice.

Phys

  • Rev. Lett. 105, 251101
  • 2010