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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo during the First Half of the Third Observing Run
Physical Review X, Volume 11, No. 2, Article 021053, Year 2021
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Description
We report on gravitational-wave discoveries from compact binary coalescences detected by Advanced LIGO and Advanced Virgo in the first half of the third observing run (O3a) between 1 April 2019 15:00 UTC and 1 October 2019 15:00 UTC. By imposing a false-alarm-rate threshold of two per year in each of the four search pipelines that constitute our search, we present 39 candidate gravitational-wave events. At this threshold, we expect a contamination fraction of less than 10%. Of these, 26 candidate events were reported previously in near-real time through gamma-ray coordinates network notices and circulars; 13 are reported here for the first time. The catalog contains events whose sources are black hole binary mergers up to a redshift of approximately 0.8, as well as events whose components cannot be unambiguously identified as black holes or neutron stars. For the latter group, we are unable to determine the nature based on estimates of the component masses and spins from gravitational-wave data alone. The range of candidate event masses which are unambiguously identified as binary black holes (both objects ≥3 Mo˙) is increased compared to GWTC-1, with total masses from approximately 14 Mo˙ for GW190924_021846 to approximately 150 Mo˙ for GW190521. For the first time, this catalog includes binary systems with significantly asymmetric mass ratios, which had not been observed in data taken before April 2019. We also find that 11 of the 39 events detected since April 2019 have positive effective inspiral spins under our default prior (at 90% credibility), while none exhibit negative effective inspiral spin. Given the increased sensitivity of Advanced LIGO and Advanced Virgo, the detection of 39 candidate events in approximately 26 weeks of data (approximately 1.5 per week) is consistent with GWTC-1. © 2021 authors. Published by the American Physical Society.
Authors & Co-Authors
Abraham, Sheelu
India, Pune
Inter-university Centre for Astronomy and Astrophysics India
Ackley, Kendall D.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Anand, Shreya G.
United States, Cambridge
Laser Interferometer Gravitational-wave Observatory
Ansoldi, Stefano
Italy, Udine
Università Degli Studi Di Udine
Italy, Trieste
Istituto Nazionale Di Fisica Nucleare, Sezione Di Trieste
Antier, Sarah
France, Paris
Cnrs Centre National de la Recherche Scientifique
Arnaud, Nicolas
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Babak, Stanislav V.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Bagnasco, Stefano
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Barbieri, C.
Italy, Milan
Università Degli Studi Di Milano-bicocca
Italy, Bicocca
Istituto Nazionale Di Fisica Nucleare, Sezione Di Milano-bicocca
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Barish, Barry C.
United States, Cambridge
Laser Interferometer Gravitational-wave Observatory
Bernuzzi, Sebastiano
Germany, Jena
Friedrich-schiller-universität Jena
Berry, Christopher P.L.
United States, Evanston
Northwestern University
Bitossi, Massimiliano
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Blanch, Oscar
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
Boër, Michel
France, Paris
Cnrs Centre National de la Recherche Scientifique
Bogaert, Gilles
France, Paris
Cnrs Centre National de la Recherche Scientifique
Bouffanais, Yann
Italy, Padua
Università Degli Studi Di Padova
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Brady, Patrick R.
United States, Milwaukee
University of Wisconsin-milwaukee
Branchesi, Marica
Italy, L'aquila
Gran Sasso Science Institute
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Bruno, Giuseppe Eugenio
Belgium, Louvain-la-neuve
Université Catholique de Louvain
Bulk, Tomasz
Poland, Warsaw
University of Warsaw
Buonanno, Alessandra
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
United States, College Park
University of Maryland, College Park
Cagnoli, Gianpietro
France, Villeurbanne
Institut Lumière Matière
Camp, Jordan B.
United States, Greenbelt
Nasa Goddard Space Flight Center
Canepa, Maurizio
Italy, Genoa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Genova
Italy, Genoa
Università Degli Studi Di Genova
Carpinelli, Massimo
Italy, Sassari
Università Degli Studi Di Sassari
Italy, Catania
Infn - Laboratori Nazionali Del Sud
Casentini, Claudio
Italy, Rome
Istituto Nazionale Di Fisica Nucleare, Sezione Di Roma Tor Vergata
Italy, Rome
Università Degli Studi Di Roma Tor Vergata
Cavalier, Fabien
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Chaibi, Walid
France, Paris
Cnrs Centre National de la Recherche Scientifique
Chanial, Pierre F.
Unknown Affiliation
Chatterjee, Deep
United States, Milwaukee
University of Wisconsin-milwaukee
Chen, Andrew W.
Hong Kong, Hong Kong
Chinese University of Hong Kong
Chen, Hsinyu
United States, Chicago
The University of Chicago
Christensen, Nelson L.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Cieślar, Marek
Poland, Warszawa
Polish Academy of Sciences
Ciolfi, Riccardo
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Clesse, Sébastien
Belgium, Louvain-la-neuve
Université Catholique de Louvain
Colpi, Monica
Italy, Milan
Università Degli Studi Di Milano-bicocca
Italy, Bicocca
Istituto Nazionale Di Fisica Nucleare, Sezione Di Milano-bicocca
Corre, David
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Corsi, Alessandra
United States, Lubbock
Texas Tech University
Coughlin, Michael W.
United States, Cambridge
Laser Interferometer Gravitational-wave Observatory
United States, Minneapolis
University of Minnesota Twin Cities
Coulon, Jean Pierre
France, Paris
Cnrs Centre National de la Recherche Scientifique
Coward, David M.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Curyło, Małgorzata
Poland, Warsaw
University of Warsaw
Davier, Michel
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
DeBra, Daniel B.
United States, Palo Alto
Stanford University
DeMarchi, Lindsay M.
United States, Evanston
Northwestern University
DeSalvo, Riccardo
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Benevento
Università Degli Studi Del Sannio
Dietrich, Tim
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Di Giorgio, Cinzia
Italy, Salerno
Università Degli Studi Di Salerno
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Di Girolamo, Tristano
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Naples
Università Degli Studi Di Napoli Federico Ii
Di Palma, Irene
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Italy, Rome
Sapienza Università Di Roma
Doctor, Zoheyr
United States, Eugene
University of Oregon
Ducoin, Jean Grégoire
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
D'Urso, Domenico
Italy, Sassari
Università Degli Studi Di Sassari
Italy, Catania
Infn - Laboratori Nazionali Del Sud
Duverne, Pierre Alexandre
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Edelman, Bruce
United States, Eugene
University of Oregon
Etienne, Zachariah B.
United States, Morgantown
West Virginia University
Evans, Matthew J.
United States, Cambridge
Massachusetts Institute of Technology
Mikal-Evans, Thomas Michael
United States, Livingston
Ligo Livingston
Fairhurst, Stephen
United Kingdom, Cardiff
Cardiff University
Farr, Benjamin F.
United States, Eugene
University of Oregon
Farr, Will M.
United States, New York
Simons Foundation
United States, Stony Brook
Stony Brook University
Feng, Fabo
France, Paris
Cnrs Centre National de la Recherche Scientifique
Fernández-Galiana, Alvaro
United States, Cambridge
Massachusetts Institute of Technology
Fiorucci, Donatella
Italy, L'aquila
Gran Sasso Science Institute
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Fisher, Ryan P.
United States, Newport News
Christopher Newport University
Fittipaldi, Rosalba
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Fisciano
Cnr - Superconducting and Other Innovative Materials and Devices Institute, Salerno
Gair, Jonathan R.
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Ganguly, Apratim
India, Mumbai
Tata Institute of Fundamental Research, Mumbai
Garufi, Fabio S.
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Naples
Università Degli Studi Di Napoli Federico Ii
Gergely, László Árpád
Hungary, Szeged
Szegedi Tudományegyetem Szte
Ghosh, Archisman
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Netherlands, Leiden
Universiteit Leiden
Ghosh, Shaon
United States, Milwaukee
University of Wisconsin-milwaukee
United States, Montclair
Montclair State University
Gopakumar, Achamveedu
India, Mumbai
Tata Institute of Fundamental Research, Mumbai
Grado, Aniello
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Rome
Istituto Nazionale Di Astrofisica, Rome
Greco, Giuseppe
Italy, Urbino
Università Degli Studi Di Urbino Carlo bo
Italy, Sesto Fiorentino
Istituto Nazionale Di Fisica Nucleare, Sezione Di Firenze
Haegel, Leïla
France, Paris
Cnrs Centre National de la Recherche Scientifique
Hanna, Chad R.
United States, University Park
Pennsylvania State University
Hannam, Mark D.
United Kingdom, Cardiff
Cardiff University
Healy, James
United States, Rochester
Rochester Institute of Technology
Hello, Patrice
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Heurs, Michele
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Holz, Daniel E.
United States, Chicago
The University of Chicago
Hopkins, Philip F.
United Kingdom, Cardiff
Cardiff University
Howell, Eric J.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Husa, Sascha
Spain, Palma
Universitat de Les Illes Balears
Isi, Maximiliano
United States, Cambridge
Massachusetts Institute of Technology
Jani, Karan P.
United States, Atlanta
Georgia Institute of Technology
Johnson-McDaniel, Nathan K.
United Kingdom, Cambridge
University of Cambridge
Katsavounidis, Erotokritos
United States, Cambridge
Massachusetts Institute of Technology
Key, Joey S.
United States, Bothell
University of Washington-bothell
Koch, Patrick Michel
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Kramer, Carsten
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Kwang, Shawn A.
United States, Milwaukee
University of Wisconsin-milwaukee
Lamberts, Astrid
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Nice
Laboratoire Joseph-louis Lagrange
Lasky, Paul D.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Lazzaro, Claudia
Italy, Padua
Università Degli Studi Di Padova
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Lee, Hyung-mok
South Korea, Daejeon
Korea Astronomy and Space Science Institute
Leroy, Nicolas
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Linde, Frank L.
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Littenberg, Tyson B.
United States, Washington, D.c.
National Aeronautics and Space Administration
London, Lionel T.
United States, Cambridge
Massachusetts Institute of Technology
Loustó, Carlos O.
United States, Rochester
Rochester Institute of Technology
Lovelace, Geoffrey
United States, Fullerton
California State University, Fullerton
MacLeod, Duncan M.
United Kingdom, Cardiff
Cardiff University
Mapelli, Michela
Italy, Padua
Università Degli Studi Di Padova
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Marchesoni, Fabio
Italy, Perugia
Istituto Nazionale Di Fisica Nucleare, Sezione Di Perugia
Italy, Camerino
Università Degli Studi Di Camerino
Markowitz, Alex G.
United States, Cambridge
Laser Interferometer Gravitational-wave Observatory
Martínez, Mario J.
Spain, Barcelona
Barcelona Institute of Science and Technology Bist
McClelland, David E.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
McIver, Jessica
Canada, Vancouver
The University of British Columbia
Merritt, J. D.
United States, Eugene
University of Oregon
Middleton, Hannah R.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Minazzoli, Olivier L.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Monaco, Monte Carlo
Centre Scientifique de Monaco
Mitra, Sanjit
India, Pune
Inter-university Centre for Astronomy and Astrophysics India
Mohite, Siddharth R.
United States, Milwaukee
University of Wisconsin-milwaukee
Moore, Christopher J.
United Kingdom, Birmingham
University of Birmingham
Mukund, Nikhil
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Nagar, Alessandro
Italy, Turin
Istituto Nazionale Di Fisica Nucleare, Sezione Di Torino
Italy, Rome
Museo Storico Della Fisica e Centro Studi e Ricerche Enrico Fermi
France, Bures Sur Yvette
Institut Des Hautes Études Scientifiques
Nelemans, Gijs A.
Netherlands, Nijmegen
Radboud Universiteit
Nissanke, Samaya M.
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Ohme, Frank
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Germany, Hannover
Gottfried Wilhelm Leibniz Universität Hannover
Olivetto, Christian
Unknown Affiliation
Panda, Prafulla Kumar
Unknown Affiliation
Paoletti, Federico
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Paolone, Annalisa
Italy, Rome
Istituto Nazionale Di Fisica Nucleare - Infn
Italy, Rome
Consiglio Nazionale Delle Ricerche
Patel, Miti
United States, Newport News
Christopher Newport University
Patricelli, Barbara
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Italy, Pisa
Università Di Pisa
Perego, Albino
Italy, Trento
Università Di Trento
Italy, Povo
Trento Institute for Fundamental Physics and Applications
Perriès, Stèphane
France, Lyon
Université de Lyon
Pfeiffer, Harald P.
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Pierro, Vincenzo
Italy, Naples
Istituto Nazionale Di Fisica Nucleare, Sezione Di Napoli
Italy, Benevento
Università Degli Studi Del Sannio
Piotrzkowski, Krzysztof
Belgium, Louvain-la-neuve
Université Catholique de Louvain
Placidi, Ernesto
Italy, Rome
Sapienza Università Di Roma
Pürrer, Michael
Germany, Potsdam
Max-planck-institut Für Gravitationsphysik Albert-einstein-institut
Qi, Hong
United Kingdom, Cardiff
Cardiff University
Raaijmakers, Geert
Netherlands, Amsterdam
Fom-institute of Subatomic Physics - Nikhef
Rana, Javed
United States, University Park
Pennsylvania State University
Razzano, Massimiliano
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Italy, Pisa
Università Di Pisa
Reid, Stuart W. J.
United Kingdom, Glasgow
University of Strathclyde
Ricker, Paul M.
United States, Urbana
University of Illinois Urbana-champaign
Rolland, Loïc
France, Chambery
Université Savoie Mont Blanc
Rose, Caitlin A.
United States, Milwaukee
University of Wisconsin-milwaukee
Sakellariadou, Mairi
United Kingdom, London
University of London
Scheel, Mark A.
United States, Pasadena
California Institute of Technology
Schmidt, Patricia
United Kingdom, Birmingham
University of Birmingham
Scott, Susan M.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Sengupta, Anand S.
India, Gandhinagar
Indian Institute of Technology Gandhinagar
Shawhan, Peter S.
United States, College Park
University of Maryland, College Park
Shoemaker, Deirdre M.
United States, Atlanta
Georgia Institute of Technology
Sigg, Daniel
Unknown Affiliation
Singer, Leo P.
United States, Greenbelt
Nasa Goddard Space Flight Center
Slaven-Blair, Teresa J.
Australia, Hawthorn
Arc Centre of Excellence for Gravitational Wave Discovery
Somala, Surendra Nadh
India, Kandi
Indian Institute of Technology Hyderabad
Souradeep, Tarun
India, Pune
Inter-university Centre for Astronomy and Astrophysics India
India, Pune
Indian Institute of Science Education and Research Pune
Staats, Kai
United States, Evanston
Northwestern University
Stachie, Cosmin
France, Paris
Cnrs Centre National de la Recherche Scientifique
Stratta, Giulia
Italy, Sesto Fiorentino
Istituto Nazionale Di Fisica Nucleare, Sezione Di Firenze
Italy, Bologna
Inaf Istituto Di Astrofisica Spaziale e Fisica Cosmica, Bologna
Tao, Duo
United States, Cambridge
Laser Interferometer Gravitational-wave Observatory
Thomas, Michael Bijoy
United States, Livingston
Ligo Livingston
Statistics
Citations: 1,152
Authors: 161
Affiliations: 180
Identifiers
Doi:
10.1103/PhysRevX.11.021053
ISSN:
21603308