GW150914: First results from the search for binary black hole coalescence with Advanced LIGO

B.P. Abbott , G. Cagnoli (1, 2) , J. Degallaix (1) , V. Dolique (1) , R. Flaminio (1) , M. Granata (1) , D. Hofman (1) , C. Michel (1) , R. Pedurand (1) , L. Pinard (1) , B. Sassolas (1) , N. Straniero (1) , T. Adams (3) , R. Bonnand (3) , D. Buskulic (3) , R. Gouaty (3) , N. Letendre (3) , F. Marion (3) , A. Masserot (3) , B. Mours (3) , L. Rolland (3) , D. Verkindt (3) , M. Was (3) , M. Yvert (3) , M. Ducrot (3) , V. Germain (3) , N. Arnaud (4) , M. A. Bizouard (4) , V. Brisson (4) , J. Casanueva Diaz (4) , F. Cavalier (4) , M. Davier (4) , S. Franco (4) , P. Hello (4) , D. Huet (4) , M. Kasprzack (4) , N. Leroy (4) , F. Robinet (4) , François Bondu (5) , M. Boër (6) , G. Bogaert (6) , A. Brillet (6) , F. Cleva (6) , J.-P. Coulon (6) , H. Dereli (6) , S. Di Pace (6) , D. Fiorucci (6) , J.-D. Fournier (6) , B. Gendre (6) , F. Kéfélian (6) , N. Man (6) , L Martinelli (6) , D. Meacher (6) , M. Merzougui (6) , M. Pichot (6) , T. Regimbau (6) , K. Siellez (6) , M. Turconi (6) , J-y Vinet (6) , L.-W. Wei (6)

1 LMA - Laboratoire des matériaux avancés
2 ILM - Institut Lumière Matière [Villeurbanne]
3 LAPP - Laboratoire d'Annecy de Physique des Particules
4 LAL - Laboratoire de l'Accélérateur Linéaire
5 IPR - Institut de Physique de Rennes
6 ARTEMIS - Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux

On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) simultaneously observed the binary black hole merger GW150914. We report the results of a matched-filter search using relativistic models of compact-object binaries that recovered GW150914 as the most significant event during the coincident observations between the two LIGO detectors from September 12 to October 20, 2015. GW150914 was observed with a matched filter signal-to-noise ratio of 24 and a false alarm rate estimated to be less than 1 event per 203 000 years, equivalent to a significance greater than 5.1 {\sigma}.

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]; Phénomènes cosmiques de haute energie [astro-ph.HE]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

B.P. Abbott, G. Cagnoli, J. Degallaix, V. Dolique, R. Flaminio, et al.. GW150914: First results from the search for binary black hole coalescence with Advanced LIGO. Physical Review D, 2016, 93 (12), pp.122003. ⟨10.1103/PhysRevD.93.122003⟩. ⟨in2p3-01273253⟩