• DOI:10.1103/PhysRevLett.119.251304
Corpus ID: 38618360

Dark Energy After GW170817: Dead Ends and the Road Ahead.

@article{Ezquiaga2017DarkEA,
  title={Dark Energy After GW170817: Dead Ends and the Road Ahead.},
  author={J. Ezquiaga and M. Zumalac'arregui},
  journal={Physical review letters},
  year={2017},
  volume={119 25},
  pages={
          251304
        }
}

• J. Ezquiaga, M. Zumalac'arregui
• Published 2017
• Physics, Medicine
• Physical review letters

Multimessenger gravitational-wave (GW) astronomy has commenced with the detection of the binary neutron star merger GW170817 and its associated electromagnetic counterparts. The almost coincident observation of both signals places an exquisite bound on the GW speed |c_{g}/c-1|≤5×10^{-16}. We use this result to probe the nature of dark energy (DE), showing that a large class of scalar-tensor theories and DE models are highly disfavored. As an example we consider the covariant Galileon, a… Expand