Effective field theory of gravity for extended objects

  title={Effective field theory of gravity for extended objects},
  author={Walter D. Goldberger and Ira Z. Rothstein},
  journal={Physical Review D},
Using effective field theory (EFT) methods we present a Lagrangian formalism which describes the dynamics of nonrelativistic extended objects coupled to gravity. The formalism is relevant to understanding the gravitational radiation power spectra emitted by binary star systems, an important class of candidate signals for gravitational wave observatories such as LIGO or VIRGO. The EFT allows for a clean separation of the three relevant scales: ${r}_{s}$, the size of the compact objects, $r$, the… 
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