Tests of General Relativity with GW170817

Somala, S N and Abbott, B P and Abbott, R and et al, . (2019) Tests of General Relativity with GW170817. Physical Review Letters, 123 (1). ISSN 0031-9007

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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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IITH Creators:	IITH Creators ORCiD Somala, S N UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	Indexed in Scopus
Subjects:	Civil Engineering
Divisions:	Department of Civil Engineering
Depositing User:	Library Staff
Date Deposited:	10 Oct 2019 12:00
Last Modified:	10 Oct 2019 12:00
URI:	http://raiithold.iith.ac.in/id/eprint/6536
Publisher URL:	http://doi.org/10.1103/PhysRevLett.123.011102
Related URLs:	Google Scholar

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