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.

Department(s)

Physics

Keywords and Phrases

Gravitational effects; Gravity waves; Testing, Binary neutron stars; Dipole radiations; Extra dimensions; General Relativity; Gravitational-wave signals; Newtonians; Strong field, Relativity

International Standard Serial Number (ISSN)

0031-9007; 1079-7114

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2019 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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