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GWTC-1: A gravitational-wave transient catalog of compact binary mergers observed by LIGO and Virgo during the first and second observing runs

  • LIGO Scientific Collaboration and Virgo Collaboration
  • California Institute of Technology
  • Louisiana State University
  • The Inter-University Centre for Astronomy and Astrophysics
  • Salerno
  • Complesso Universitario di Monte Sant'Angelo
  • Monash University
  • LIGO Livingston Observatory
  • Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
  • Leibniz Universität Hannover
  • University of Cambridge
  • University of Birmingham
  • LIGO, Massachusetts Institute of Technology
  • Instituto Nacional de Pesquisas Espaciais
  • Gran Sasso Science Institute
  • Laboratori Nazionali del Gran Sasso
  • Tata Institute of Fundamental Research
  • University of Illinois
  • Università di Pisa
  • INFN
  • University of Valencia
  • Australian National University
  • IN2P3 Institut National de Physique Nucleaire et de Physique des Particules
  • University of Wisconsin-Milwaukee
  • University of Strathclyde
  • Université Paris-Saclay
  • California State University
  • APC - AstroParticule et Cosmologie
  • European Gravitational Observatory (EGO)
  • Chennai Mathematical Institute
  • Università di Roma Tor Vergata
  • Gran Sasso Science Institute
  • CNRS/IN2P3
  • Embry-Riddle Aeronautical University
  • Montclair State University
  • Science Park
  • Korea Institute of Science and Technology Information
  • West Virginia University
  • Università di Perugia
  • INFN
  • Syracuse University
  • University of Minnesota Twin Cities
  • University of Glasgow
  • LIGO Hanford Observatory
  • Institute for Particle and Nuclear Physics
  • University of Florida
  • Stanford University
  • Dipartimento di Fisica
  • University of Padua
  • Montana State University
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • University of Adelaide
  • Friedrich Schiller Universität
  • Gruppo Collegato di Parma
  • Rochester Institute of Technology
  • Northwestern University
  • RRCAT
  • Lomonosov Moscow State University
  • University of Western Australia
  • Radboud University Nijmegen
  • Observatoire de la Côte d'Azur
  • University of Zurich
  • Centre National de la Recherche Scientifique
  • Cardiff University
  • Washington State University
  • University of Oregon
  • Université Pierre et Marie Curie
  • Università degli Studi di Urbino Carlo Bo
  • Sezione di Firenze
  • Astronomical Observatory Warsaw University
  • Vrije University Amsterdam
  • University of Maryland
  • University of Texas at Austin
  • Georgia Institute of Technology
  • Université Claude Bernard Lyon 1
  • Complesso Universitario di Monte S.Angelo
  • NASA/Goddard Space Flight Center
  • Università degli Studi di Genova
  • University of Tokyo
  • Tsinghua University
  • Texas Tech University at Lubbock
  • University of Mississippi
  • Centro Studi e Ricerche Enrico Fermi
  • Pennsylvania State University
  • National Tsing Hua University
  • Canadian Institute for Theoretical Astrophysics
  • University of Chicago
  • Chinese University of Hong Kong
  • Seoul National University
  • Pusan National University
  • Carleton College, USA
  • Osservatorio Astronomico di Padova
  • Trento Institute for Fundamental Physics and Applications
  • University of Melbourne
  • Columbia University in the City of New York
  • Universitat de les Illes Balears
  • Université Libre de Bruxelles
  • Sonoma State University
  • University of Rhode Island
  • University of Texas Rio Grande Valley
  • Bellevue College

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Abstract

We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 Ma™ during the first and second observing runs of the advanced gravitational-wave detector network. During the first observing run (O1), from September 12, 2015 to January 19, 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November 30, 2016 to August 25, 2017, saw the first detection of gravitational waves from a binary neutron star inspiral, in addition to the observation of gravitational waves from a total of seven binary black hole mergers, four of which we report here for the first time: GW170729, GW170809, GW170818, and GW170823. For all significant gravitational-wave events, we provide estimates of the source properties. The detected binary black holes have total masses between 18.6-0.7+3.2 Mâ™ and 84.4-11.1+15.8 Mâ™ and range in distance between 320-110+120 and 2840-1360+1400 Mpc. No neutron star-black hole mergers were detected. In addition to highly significant gravitational-wave events, we also provide a list of marginal event candidates with an estimated false-alarm rate less than 1 per 30 days. From these results over the first two observing runs, which include approximately one gravitational-wave detection per 15 days of data searched, we infer merger rates at the 90% confidence intervals of 110-3840 Gpc-3 y-1 for binary neutron stars and 9.7-101 Gpc-3 y-1 for binary black holes assuming fixed population distributions and determine a neutron star-black hole merger rate 90% upper limit of 610 Gpc-3 y-1.

Original languageEnglish
Article number031040
Pages (from-to)1-49
Number of pages49
JournalPhysical Review X
Volume9
Issue number3
DOIs
Publication statusPublished - 04 Sept 2019

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