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

Nov 11, 2017
6 pages
Published in:
  • Phys.Rev.D 97 (2018) 8, 084011
  • Published: Apr 6, 2018
e-Print:

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Abstract: (APS)
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 provide us a significant opportunity to study theories of gravity beyond general relativity. An important outcome of these observations is that they constrain the difference between the speed of gravity and the speed of light to less than 10-15c. Also, the time delay between the arrivals of gravitational waves at different detectors constrains the speed of gravity at the Earth to be in the range 0.55c
Note:
  • 5 pages. Published version
  • gamma ray: burst
  • background: Robertson-Walker
  • nucleosynthesis: primordial
  • neutron star: binary
  • photon: velocity
  • gravitation
  • gravitational radiation
  • gravitational radiation: direct detection
  • time delay
  • Born-Infeld model