• Corpus ID: 251280278

Gravitational-wave energy and other fluxes in ghost-free bigravity

  title={Gravitational-wave energy and other fluxes in ghost-free bigravity},
  author={Alexander M. Grant and Alexander Saffer and Leo C. Stein and Shammi Tahura},
One of the key ingredients for making binary waveform predictions in a beyond-GR theory of gravity is understanding the energy and angular momentum carried by gravitational waves and any other radiated fields. Identifying the appropriate energy functional is unclear in Hassan-Rosen bigravity, a ghost-free theory with one massive and one massless graviton. The difficulty arises from the new degrees of freedom and length scales which are not present in GR, rendering an Isaacson-style averaging… 

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