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.

Abbott, B.p., Abbott, R., Abbott, T.d., Acernese, F., Ackley, K., Adams, C., et al. (2019). Tests of general relativity with GW170817. PHYSICAL REVIEW LETTERS, 123(1) [10.1103/PhysRevLett.123.011102].

Tests of general relativity with GW170817

Fafone V.;Lorenzini M.;
2019-01-01

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.
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
Abbott, B.p., Abbott, R., Abbott, T.d., Acernese, F., Ackley, K., Adams, C., et al. (2019). Tests of general relativity with GW170817. PHYSICAL REVIEW LETTERS, 123(1) [10.1103/PhysRevLett.123.011102].
Abbott, Bp; Abbott, R; Abbott, Td; Acernese, F; Ackley, K; Adams, C; Adams, T; Addesso, P; Adhikari, Rx; Adya, Vb; Affeldt, C; Agarwal, B; Agathos, M;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/301187
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