Tests of General Relativity with GW170817
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Authors
Abbott, Benjamin P.
Abbott, R.
Abbott, T. D.
Acernese, Fausto
Ackley, K.
Adams, C.
Adams, T.
Addesso, Paolo
Adhikari, Rana X.
Adya, Vaishali
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American Physical Society
Abstract
The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal from a binary
neutron star inspiral has enabled tests of general relativity (GR) with this new type of source. This source, for
the first time, permits tests of strong-field dynamics of compact binaries in the presence of matter. In this
Letter, we place constraints on the dipole radiation and possible deviations from GR in the post-Newtonian
coefficients that govern the inspiral regime. Bounds on modified dispersion of gravitational waves are
obtained; in combination with information from the observed electromagnetic counterpart we can also
constrain effects due to large extra dimensions. Finally, the polarization content of the gravitational wave
signal is studied. The results of all tests performed here show good agreement with GR.
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Physical Review Letters
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