GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
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GW170817 : Observation of Gravitational Waves from a Binary Neutron Star Inspiral. / LIGO Sci Collaboration & Virgo.
In: Physical Review Letters, Vol. 119, No. 16, 161101, 16.10.2017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - GW170817
T2 - Observation of Gravitational Waves from a Binary Neutron Star Inspiral
AU - Ascenzi, S.
AU - Barr, B.
AU - Brown, D. D.
AU - Brown, D. D.
AU - Cao, H.
AU - Cao, J.
AU - Chan, M.
AU - Chen, H. Y.
AU - Chen, X.
AU - Chen, Y.
AU - Cheng, H. -P.
AU - Christensen, N.
AU - Cooper, S. J.
AU - Diaz, M. C.
AU - Edwards, M. C.
AU - Fan, X.
AU - Farr, B.
AU - Farr, W. M.
AU - Fisher, R. P.
AU - Gair, J. R.
AU - Green, A. C.
AU - Guo, X.
AU - Holz, D. E.
AU - Hu, Y. M.
AU - Junker, J.
AU - Khan, S.
AU - Kim, J. C.
AU - Kim, Y. -M.
AU - Koch, P.
AU - Kumar, P.
AU - Kumar, S.
AU - Landry, M.
AU - Lange, J.
AU - Lee, C. H.
AU - Lee, K.
AU - Lehmann, J.
AU - Leonardi, M.
AU - Li, T. G. F.
AU - Liu, J.
AU - Liu, X.
AU - Ma, Y.
AU - Mason, K.
AU - Miller, A. L.
AU - Mitra, S.
AU - Mukherjee, D.
AU - Mukherjee, S.
AU - Munch, J.
AU - Ng, K. K. Y.
AU - Nguyen, P.
AU - Nguyen, T. T.
AU - Nielsen, A. B.
AU - Noack, A.
AU - Nolting, D.
AU - Oh, S. H.
AU - Pai, A.
AU - Pfeiffer, H. P.
AU - Phelps, M.
AU - Romano, R.
AU - Scheuer, J.
AU - Schmidt, J.
AU - Schmidt, P.
AU - Schulte, B. W.
AU - Scott, S. M.
AU - Shah, A. A.
AU - Silva, A. D.
AU - Singh, A.
AU - Singhal, A.
AU - Smith, B.
AU - Smith, J. R.
AU - Smith, R. J. E.
AU - Sun, L.
AU - Taylor, J. A.
AU - Tiwari, S.
AU - Walker, M.
AU - Walsh, S.
AU - Wang, G.
AU - Wang, H.
AU - Wang, J. Z.
AU - Wang, W. H.
AU - Wang, Y. F.
AU - Wei, L. -W.
AU - Williams, R. D.
AU - Yang, L.
AU - Zhang, M.
AU - Zhu, X. J.
AU - LIGO Sci Collaboration & Virgo
PY - 2017/10/16
Y1 - 2017/10/16
N2 - On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of 32.4 and a false-alarm-rate estimate of less than one per 8.0 x 10(4) years. We infer the component masses of the binary to be between 0.86 and 2.26 M-circle dot, in agreement with masses of known neutron stars. Restricting the component spins to the range inferred in binary neutron stars, we find the component masses to be in the range 1.17-1.60 M-circle dot, with the total mass of the system 2.74(-0.01)(+0.04) M-circle dot. The source was localized within a sky region of 28 deg(2) (90% probability) and had a luminosity distance of 40(-14)(+8) Mpc, the closest and most precisely localized gravitational-wave signal yet. The association with the gamma-ray burst GRB 170817A, detected by Fermi-GBM 1.7 s after the coalescence, corroborates the hypothesis of a neutron star merger and provides the first direct evidence of a link between these mergers and short gamma-ray bursts. Subsequent identification of transient counterparts across the electromagnetic spectrum in the same location further supports the interpretation of this event as a neutron star merger. This unprecedented joint gravitational and electromagnetic observation provides insight into astrophysics, dense matter, gravitation, and cosmology.
AB - On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of 32.4 and a false-alarm-rate estimate of less than one per 8.0 x 10(4) years. We infer the component masses of the binary to be between 0.86 and 2.26 M-circle dot, in agreement with masses of known neutron stars. Restricting the component spins to the range inferred in binary neutron stars, we find the component masses to be in the range 1.17-1.60 M-circle dot, with the total mass of the system 2.74(-0.01)(+0.04) M-circle dot. The source was localized within a sky region of 28 deg(2) (90% probability) and had a luminosity distance of 40(-14)(+8) Mpc, the closest and most precisely localized gravitational-wave signal yet. The association with the gamma-ray burst GRB 170817A, detected by Fermi-GBM 1.7 s after the coalescence, corroborates the hypothesis of a neutron star merger and provides the first direct evidence of a link between these mergers and short gamma-ray bursts. Subsequent identification of transient counterparts across the electromagnetic spectrum in the same location further supports the interpretation of this event as a neutron star merger. This unprecedented joint gravitational and electromagnetic observation provides insight into astrophysics, dense matter, gravitation, and cosmology.
KW - EQUATION-OF-STATE
KW - GAMMA-RAY BURST
KW - ADVANCED LIGO
KW - DENSE MATTER
KW - PULSAR
KW - RADIATION
KW - MERGERS
KW - MASSES
U2 - 10.1103/PhysRevLett.119.161101
DO - 10.1103/PhysRevLett.119.161101
M3 - Journal article
VL - 119
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 16
M1 - 161101
ER -
ID: 258889857