Gravitational Waves in F(R)F(R) Gravity: Scalar Waves and the Chameleon Mechanism

Feb 7, 2019
15 pages
Published in:
  • Phys.Rev.D 99 (2019) 12, 124050
  • Published: Jun 29, 2019
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Abstract: (APS)
We discuss the scalar mode of gravitational waves emerging in the context of F(R) gravity by taking into account the chameleon mechanism. Assuming a toy model with a specific matter distribution to reproduce the environment of detection experiment by a ground-based gravitational wave observatory, we find that the chameleon mechanism remarkably suppresses the scalar wave in the atmosphere of Earth, compared with the tensor modes of the gravitational waves. We also discuss the possibility to detect and constrain scalar waves by the current gravitational observatories and advocate a necessity of the future space-based observations.
Note:
  • 15 pages, 5 figures, accepted version in Physical Review D
  • General relativity, alternative theories of gravity
  • gravitational radiation: polarization
  • gravitational radiation
  • gravitational radiation detector
  • gravitational radiation: emission
  • gravitational radiation: direct detection
  • chameleon: field theory
  • observatory
  • gravitation: f(R)
  • suppression