Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

¹ LIGO Laboratory, California Institute of Technology, Pasadena, CA 91125, USA
² Louisiana State University, Baton Rouge, LA 70803, USA
³ Dipartimento di Farmacia, Università di Salerno, 84084 Fisciano, Salerno, Italy
⁴ INFN, Sezione di Napoli, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy
⁵ OzGrav, School of Physics and Astronomy, Monash University, Clayton, 3800 Victoria, Australia
⁶ LIGO Livingston Observatory, Livingston, LA 70754, USA
⁷ University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
⁸ OzGrav, Australian National University, Canberra, ACT 0200, Australia
⁹ Max Planck Institute for Gravitational Physics (Albert Einstein Institute), 30167 Hannover, Germany
¹⁰ Leibniz Universität Hannover, 30167 Hannover, Germany
¹¹ Inter-University Centre for Astronomy and Astrophysics, Pune, 411007, India
¹² University of Cambridge, Cambridge, CB2 1TN, UK
¹³ Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 07743 Jena, Germany
¹⁴ University of Birmingham, Birmingham, B15 2TT, UK
¹⁵ Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Northwestern University, Evanston, IL 60208, USA
¹⁶ Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil
¹⁷ Gravity Exploration Institute, Cardiff University, Cardiff, CF24 3AA, UK
¹⁸ INFN, Sezione di Pisa, 56127 Pisa, Italy
¹⁹ International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bengaluru, 560089, India
²⁰ Gravitational Wave Science Project, National Astronomical Observatory of Japan (NAOJ), Mitaka, Tokyo 181-8588, Japan
²¹ Advanced Technology Center, National Astronomical Observatory of Japan (NAOJ), Mitaka, Tokyo 181-8588, Japan
²² INFN Sezione di Torino, 10125 Torino, Italy
²³ Università di Napoli “Federico II”, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy
²⁴ Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, 69622 Villeurbanne, France
²⁵ Department of Physics, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
²⁶ Research Center for the Early Universe (RESCEU), The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
²⁷ Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, C/ Martí i Franquès 1, Barcelona, 08028, Spain
²⁸ Laboratoire d’Annecy de Physique des Particules (LAPP), Univ. Grenoble Alpes, Université Savoie Mont Blanc, CNRS/IN2P3, 74941 Annecy, France
²⁹ Gran Sasso Science Institute (GSSI), 67100, L’Aquila, Italy, SUPA, University of Strathclyde, Glasgow, G1 1XQ, UK
³⁰ Dipartimento di Scienze Matematiche, Informatiche e Fisiche, Università di Udine, 33100 Udine, Italy
³¹ INFN, Sezione di Trieste, 34127 Trieste, Italy
³² Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA
³³ Université de Paris, CNRS, Astroparticule et Cosmologie, 75006 Paris, France
³⁴ Institute for Cosmic Ray Research (ICRR), KAGRA Observatory, The University of Tokyo, Kashiwa, Chiba 277-8582, Japan
³⁵ Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
³⁶ Earthquake Research Institute, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
³⁷ California State University Fullerton, Fullerton, CA 92831, USA
³⁸ Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
³⁹ European Gravitational Observatory (EGO), 56021 Cascina, Pisa, Italy
⁴⁰ Chennai Mathematical Institute, Chennai, 603103, India
⁴¹ Department of Mathematics and Physics, Gravitational Wave Science Project, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
⁴² Columbia University, New York, NY 10027, USA
⁴³ Kamioka Branch, National Astronomical Observatory of Japan (NAOJ), Kamioka-cho, Hida, Gifu 506-1205, Japan
⁴⁴ The Graduate University for Advanced Studies (SOKENDAI), Mitaka, Tokyo 181-8588, Japan
⁴⁵ Università degli Studi di Urbino “Carlo Bo”, 61029 Urbino, Italy
⁴⁶ INFN, Sezione di Firenze, 50019 Sesto Fiorentino, Firenze, Italy
⁴⁷ INFN, Sezione di Roma, 00185 Roma, Italy
⁴⁸ Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
⁴⁹ Nikhef, Science Park 105, 1098 XG Amsterdam, The Netherlands
⁵⁰ King’s College London, University of London, London, WC2R 2LS, UK
⁵¹ Korea Institute of Science and Technology Information (KISTI), Yuseong-gu, Daejeon 34141, Korea
⁵² National Institute for Mathematical Sciences, Yuseong-gu, Daejeon 34047, Korea
⁵³ Christopher Newport University, Newport News, VA 23606, USA
⁵⁴ International College, Osaka University, Toyonaka, Osaka 560-0043, Japan
⁵⁵ School of High Energy Accelerator Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan
⁵⁶ University of Oregon, Eugene, OR 97403, USA
⁵⁷ Syracuse University, Syracuse, NY 13244, USA
⁵⁸ Université de Liège, 4000 Liège, Belgium
⁵⁹ University of Minnesota, Minneapolis, MN 55455, USA
⁶⁰ Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
⁶¹ INFN, Sezione di Milano-Bicocca, 20126 Milano, Italy
⁶² INAF, Osservatorio Astronomico di Brera sede di Merate, 23807 Merate, Lecco, Italy
⁶³ LIGO Hanford Observatory, Richland, WA 99352, USA
⁶⁴ Dipartimento di Medicina, Chirurgia e Odontoiatria “Scuola Medica Salernitana”, Università di Salerno, 84081 Baronissi, Salerno, Italy
⁶⁵ SUPA, University of Glasgow, Glasgow, G12 8QQ, UK
⁶⁶ LIGO Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
⁶⁷ Wigner RCP, RMKI, Konkoly Thege Miklós út 29-33, 1121 Budapest, Hungary
⁶⁸ University of Florida, Gainesville, FL 32611, USA
⁶⁹ Stanford University, Stanford, CA 94305, USA
⁷⁰ Università di Pisa, 56127 Pisa, Italy
⁷¹ INFN, Sezione di Perugia, 06123 Perugia, Italy
⁷² Università di Perugia, 06123 Perugia, Italy
⁷³ Università di Padova, Dipartimento di Fisica e Astronomia, 35131 Padova, Italy
⁷⁴ INFN, Sezione di Padova, 35131 Padova, Italy
⁷⁵ Montana State University, Bozeman, MT 59717, USA
⁷⁶ Institute for Plasma Research, Bhat, Gandhinagar 382428, India
⁷⁷ Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, 00-716 Warsaw, Poland
⁷⁸ Dipartimento di Ingegneria, Università del Sannio, 82100 Benevento, Italy
⁷⁹ OzGrav, University of Adelaide, Adelaide, South Australia, 5005, Australia
⁸⁰ California State University, Los Angeles, 5151 State University Dr, Los Angeles, CA 90032, USA
⁸¹ INFN, Sezione di Genova, 16146 Genova, Italy
⁸² OzGrav, University of Western Australia, Crawley, Western Australia, 6009, Australia
⁸³ RRCAT, Indore, Madhya Pradesh, 452013, India
⁸⁴ GRAPPA, Anton Pannekoek Institute for Astronomy and Institute for High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
⁸⁵ Missouri University of Science and Technology, Rolla, MO 65409, USA
⁸⁶ Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia
⁸⁷ Università di Trento, Dipartimento di Fisica, 38123 Povo, Trento, Italy
⁸⁸ INFN, Trento Institute for Fundamental Physics and Applications, 38123 Povo, Trento, Italy
⁸⁹ SUPA, University of the West of Scotland, Paisley, PA1 2BE, UK
⁹⁰ Bar-Ilan University, Ramat Gan, 5290002, Israel
⁹¹ Artemis, Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, 06304 Nice, France
⁹² Dipartimento di Fisica “E.R. Caianiello”, Università di Salerno, 84084 Fisciano, Salerno, Italy
⁹³ INFN, Sezione di Napoli, Gruppo Collegato di Salerno, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy
⁹⁴ Università di Roma “La Sapienza”, 00185 Roma, Italy
⁹⁵ Univ. Rennes, CNRS, Institut FOTON – UMR6082, 3500 Rennes, France
⁹⁶ Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
⁹⁷ INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
⁹⁸ Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, 75005 Paris, France
⁹⁹ Astronomical Observatory Warsaw University, 00-478 Warsaw, Poland
¹⁰⁰ University of Maryland, College Park, MD 20742, USA
¹⁰¹ Max Planck Institute for Gravitational Physics (Albert Einstein Institute), 14476 Potsdam, Germany
¹⁰² L2IT, Laboratoire des 2 Infinis – Toulouse, Université de Toulouse, CNRS/IN2P3, UPS, 31062 Toulouse Cedex 9, France
¹⁰³ School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA
¹⁰⁴ IGFAE, Campus Sur, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
¹⁰⁵ The Chinese University of Hong Kong, Shatin, NT, Hong Kong
¹⁰⁶ Stony Brook University, Stony Brook, NY 11794, USA
¹⁰⁷ Center for Computational Astrophysics, Flatiron Institute, New York, NY 10010, USA
¹⁰⁸ NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
¹⁰⁹ Dipartimento di Fisica, Università degli Studi di Genova, 16146 Genova, Italy
¹¹⁰ Institute for Gravitational and Subatomic Physics (GRASP), Utrecht University, Princetonplein 1, 3584 CC Utrecht, The Netherlands
¹¹¹ RESCEU, University of Tokyo, Tokyo, 113-0033, Japan
¹¹² Department of Astronomy, Beijing Normal University, Beijing, 100875, PR China
¹¹³ OzGrav, University of Melbourne, Parkville, Victoria 3010, Australia
¹¹⁴ Università degli Studi di Sassari, 07100 Sassari, Italy
¹¹⁵ INFN, Laboratori Nazionali del Sud, 95125 Catania, Italy
¹¹⁶ Università di Roma Tor Vergata, 00133 Roma, Italy
¹¹⁷ INFN, Sezione di Roma Tor Vergata, 00133 Roma, Italy
¹¹⁸ University of Sannio at Benevento, 82100, Benevento, Italy and INFN, Sezione di Napoli, 80100 Napoli, Italy
¹¹⁹ Villanova University, 800 Lancaster Ave, Villanova, PA 19085, USA
¹²⁰ Departamento de Astronomía y Astrofísica, Universitat de València, 46100 Burjassot, València, Spain
¹²¹ Universität Hamburg, 22761 Hamburg, Germany
¹²² Rochester Institute of Technology, Rochester, NY 14623, USA
¹²³ National Tsing Hua University, Hsinchu, 30013, Taiwan
¹²⁴ Department of Applied Physics, Fukuoka University, Jonan, Fukuoka, Fukuoka 814-0180, Japan
¹²⁵ OzGrav, Charles Sturt University, Wagga Wagga, New South Wales, 2678, Australia
¹²⁶ Department of Physics, Tamkang University, Danshui Dist., New Taipei, 25137, Taiwan
¹²⁷ Department of Physics and Institute of Astronomy, National Tsing Hua University, Hsinchu, 30013, Taiwan
¹²⁸ Department of Physics, Center for High Energy and High Field Physics, National Central University, Zhongli, Taoyuan, 32001, Taiwan
¹²⁹ CaRT, California Institute of Technology, Pasadena, CA 91125, USA
¹³⁰ Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
¹³¹ Dipartimento di Ingegneria Industriale (DIIN), Università di Salerno, 84084 Fisciano, Salerno, Italy
¹³² Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
¹³³ Université Lyon, Université Claude Bernard Lyon 1, CNRS, IP2I Lyon/IN2P3, UMR 5822, 69622 Villeurbanne, France
¹³⁴ Seoul National University, Seoul, 08826, South Korea
¹³⁵ Pusan National University, Busan, 46241, South Korea
¹³⁶ INAF, Osservatorio Astronomico di Padova, 35122 Padova, Italy
¹³⁷ University of Arizona, Tucson, AZ 85721, USA
¹³⁸ Rutherford Appleton Laboratory, Didcot, OX11 0DE, UK
¹³⁹ OzGrav, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
¹⁴⁰ Université Libre de Bruxelles, Avenue Franklin Roosevelt 50, 1050 Bruxelles, Belgium
¹⁴¹ Universitat de les Illes Balears, IAC3–IEEC, 07122 Palma de Mallorca, Spain
¹⁴² Université Libre de Bruxelles, Brussels, 1050, Belgium
¹⁴³ Departamento de Matemáticas, Universitat de València, 46100 Burjassot, València, Spain
¹⁴⁴ Texas Tech University, Lubbock, TX 79409, USA
¹⁴⁵ The Pennsylvania State University, University Park, PA 16802, USA
¹⁴⁶ University of Rhode Island, Kingston, RI 02881, USA
¹⁴⁷ The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA
¹⁴⁸ Bellevue College, Bellevue, WA 98007, USA
¹⁴⁹ Scuola Normale Superiore, Piazza dei Cavalieri, 7, 56126 Pisa, Italy
¹⁵⁰ MTA-ELTE Astrophysics Research Group, Institute of Physics, Eötvös University, Budapest, 1117, Hungary
¹⁵¹ Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
¹⁵² University of Portsmouth, Portsmouth, PO1 3FX, UK
¹⁵³ The University of Sheffield, Sheffield, S10 2TN, UK
¹⁵⁴ Université Lyon, Université Claude Bernard Lyon 1, CNRS, Laboratoire des Matériaux Avancés (LMA), IP2I Lyon/IN2P3, UMR 5822, 69622 Villeurbanne, France
¹⁵⁵ Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma, 43124 Parma, Italy
¹⁵⁶ INFN, Sezione di Milano Bicocca, Gruppo Collegato di Parma, 43124 Parma, Italy
¹⁵⁷ Physik-Institut, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
¹⁵⁸ University of Chicago, Chicago, IL 60637, USA
¹⁵⁹ Université de Strasbourg, CNRS, IPHC UMR 7178, 67000 Strasbourg, France
¹⁶⁰ West Virginia University, Morgantown, WV 26506, USA
¹⁶¹ Montclair State University, Montclair, NJ 07043, USA
¹⁶² Colorado State University, Fort Collins, CO 80523, USA
¹⁶³ Institute for Nuclear Research, Hungarian Academy of Sciences, Bem t’er 18/c, 4026 Debrecen, Hungary
¹⁶⁴ Department of Physics, University of Texas, Austin, TX 78712, USA
¹⁶⁵ CNR-SPIN, c/o Università di Salerno, 84084 Fisciano, Salerno, Italy
¹⁶⁶ Scuola di Ingegneria, Università della Basilicata, 85100 Potenza, Italy
¹⁶⁷ Gravitational Wave Science Project, National Astronomical Observatory of Japan (NAOJ), Mitaka, Tokyo 181-8588, Japan
¹⁶⁸ Observatori Astronòmic, Universitat de València, 46980 Paterna, València, Spain
¹⁶⁹ The University of Utah, Salt Lake, UT 84112, USA
¹⁷⁰ Kenyon College, Gambier, OH 43022, USA
¹⁷¹ Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
¹⁷² Department of Astronomy, The University of Tokyo, Mitaka, Tokyo 181-8588, Japan
¹⁷³ Faculty of Engineering, Niigata University, Nishi-ku, Niigata, Niigata 950-2181, Japan
¹⁷⁴ State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology (APM), Chinese Academy of Sciences, Xiao Hong Shan, Wuhan 430071, PR China
¹⁷⁵ University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
¹⁷⁶ Universiteit Gent, 9000 Gent, Belgium
¹⁷⁷ Cornell University, Ithaca, NY 14850, USA
¹⁷⁸ University of British Columbia, Vancouver, BC V6T 1Z4, Canada
¹⁷⁹ Tata Institute of Fundamental Research, Mumbai, 400005, India
¹⁸⁰ INAF, Osservatorio Astronomico di Capodimonte, 80131 Napoli, Italy
¹⁸¹ The University of Mississippi, University, Mississippi, MS 38677, USA
¹⁸² University of Michigan, Ann Arbor, MI 48109, USA
¹⁸³ Texas A&M University, College Station, TX 77843, USA
¹⁸⁴ Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan 44919, Korea
¹⁸⁵ Applied Research Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
¹⁸⁶ Dipartimento di Fisica, Università di Trieste, 34127 Trieste, Italy
¹⁸⁷ Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, PR China
¹⁸⁸ American University, Washington, DC 20016, USA
¹⁸⁹ Faculty of Science, University of Toyama, Toyama, Toyama 930-8555, Japan
¹⁹⁰ Institute for Cosmic Ray Research (ICRR), KAGRA Observatory, The University of Tokyo, Kamioka-cho, Hida, Gifu 506-1205, Japan
¹⁹¹ Carleton College, Northfield, MN 55057, USA
¹⁹² University of California, Berkeley, CA 94720, USA
¹⁹³ Maastricht University, 6200 MD Maastricht, The Netherlands
¹⁹⁴ College of Industrial Technology, Nihon University, Narashino, Chiba 275-8575, Japan
¹⁹⁵ Graduate School of Science and Technology, Niigata University, Nishi-ku, Niigata, Niigata 950-2181, Japan
¹⁹⁶ Department of Physics, National Taiwan Normal University, Sec. 4, Taipei, 116, Taiwan
¹⁹⁷ Astronomy & Space Science, Chungnam National University, Yuseong-gu, Daejeon 34134, Korea
¹⁹⁸ Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
¹⁹⁹ Kavli Institute for Astronomy and Astrophysics, Peking University, Haidian, Beijing, 100871, PR China
²⁰⁰ Yukawa Institute for Theoretical Physics (YITP), Kyoto University, Sakyou-ku, Kyoto, Kyoto 606-8502, Japan
²⁰¹ Graduate School of Science and Engineering, University of Toyama, Toyama, Toyama 930-8555, Japan
²⁰² Department of Physics, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan
²⁰³ Nambu Yoichiro Institute of Theoretical and Experimental Physics (NITEP), Osaka City University, Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan
²⁰⁴ Institute of Space and Astronautical Science (JAXA), Chuo-ku, Sagamihara, Kanagawa 252-0222, Japan
²⁰⁵ Directorate of Construction, Services & Estate Management, Mumbai, 400094, India
²⁰⁶ Vanderbilt University, Nashville, TN 37235, USA
²⁰⁷ Universiteit Antwerpen, Prinsstraat 13, 2000 Antwerpen, Belgium
²⁰⁸ University of Białystok, 15-424 Białystok, Poland
²⁰⁹ Department of Physics, Ewha Womans University, Seodaemun-gu, Seoul 03760, Korea
²¹⁰ National Astronomical Observatories, Chinese Academic of Sciences, Chaoyang, Beijing, PR China
²¹¹ School of Astronomy and Space Science, University of Chinese Academy of Sciences, Chaoyang, Beijing, PR China
²¹² University of Southampton, Southampton, SO17 1BJ, UK
²¹³ Institute for Cosmic Ray Research (ICRR), The University of Tokyo, Kashiwa, Chiba 277-8582, Japan
²¹⁴ Faculty of Science, University of Toyama, Toyama, Toyama 930-8555, Japan
²¹⁵ Chung-Ang University, Seoul, 06974, South Korea
²¹⁶ Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology, and ICREA, 08193 Barcelona, Spain
²¹⁷ Graduate School of Science, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan
²¹⁸ University of Washington Bothell, Bothell, WA 98011, USA
²¹⁹ Institute of Applied Physics, Nizhny Novgorod, 603950, Russia
²²⁰ Ewha Womans University, Seoul, 03760, South Korea
²²¹ Inje University Gimhae, South Gyeongsang, 50834, South Korea
²²² Department of Physics, Myongji University, Yongin, 17058, Korea
²²³ Korea Astronomy and Space Science Institute, Daejeon, 34055, South Korea
²²⁴ National Institute for Mathematical Sciences, Daejeon, 34047, South Korea
²²⁵ Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
²²⁶ Department of Physical Science, Hiroshima University, Higashihiroshima, Hiroshima 903-0213, Japan
²²⁷ School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, UK
²²⁸ Institute of Astronomy, National Tsing Hua University, Hsinchu, 30013, Taiwan
²²⁹ Bard College, 30 Campus Rd, Annandale-On-Hudson, NY 12504, USA
²³⁰ Institute of Mathematics, Polish Academy of Sciences, 00656 Warsaw, Poland
²³¹ National Center for Nuclear Research, 05-400 Świerk-Otwock, Poland
²³² Instituto de Fisica Teorica, 28049 Madrid, Spain
²³³ Department of Physics, Nagoya University, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
²³⁴ Université de Montréal/Polytechnique, Montreal, Quebec H3T 1J4, Canada
²³⁵ Laboratoire Lagrange, Université Côte d’Azur, Observatoire Côte d’Azur, CNRS, 06304 Nice, France
²³⁶ Department of Physics, Hanyang University, Seoul, 04763, Korea
²³⁷ Sungkyunkwan University, Seoul, 03063, South Korea
²³⁸ NAVIER, École des Ponts, Univ. Gustave Eiffel, CNRS, Marne-la-Vallée, France
²³⁹ Department of Physics, National Cheng Kung University, Tainan, 701, Taiwan
²⁴⁰ National Center for High-performance computing, National Applied Research Laboratories, Hsinchu Science Park, Hsinchu, 30076, Taiwan
²⁴¹ Institute for High-Energy Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
²⁴² NASA Marshall Space Flight Center, Huntsville, AL 35811, USA
²⁴³ University of Washington, Seattle, WA 98195, USA
²⁴⁴ Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146 Roma, Italy
²⁴⁵ INFN, Sezione di Roma Tre, 00146 Roma, Italy
²⁴⁶ ESPCI, CNRS, 75005 Paris, France
²⁴⁷ Concordia University Wisconsin, Mequon, WI 53097, USA
²⁴⁸ Università di Camerino, Dipartimento di Fisica, 62032 Camerino, Italy
²⁴⁹ School of Physics Science and Engineering, Tongji University, Shanghai, 200092, PR China
²⁵⁰ Southern University and A&M College, Baton Rouge, LA 70813, USA
²⁵¹ Centre Scientifique de Monaco, 8 Quai Antoine Ier, 98000, Monaco
²⁵² Institute for Photon Science and Technology, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
²⁵³ Indian Institute of Technology Madras, Chennai, 600036, India
²⁵⁴ Saha Institute of Nuclear Physics, Bidhannagar, West Bengal, 700064, India
²⁵⁵ The Applied Electromagnetic Research Institute, National Institute of Information and Communications Technology (NICT), Koganei, Tokyo 184-8795, Japan
²⁵⁶ Institut des Hautes Etudes Scientifiques, 91440 Bures-sur-Yvette, France
²⁵⁷ Faculty of Law, Ryukoku University, Fushimi-ku, Kyoto, Kyoto 612-8577, Japan
²⁵⁸ Indian Institute of Science Education and Research, Kolkata, Mohanpur, West Bengal, 741252, India
²⁵⁹ Department of Astrophysics/IMAPP, Radboud University Nijmegen, PO Box 9010, 6500 GL Nijmegen, The Netherlands
²⁶⁰ Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
²⁶¹ Consiglio Nazionale delle Ricerche – Istituto dei Sistemi Complessi, Piazzale Aldo Moro 5, 00185 Roma, Italy
²⁶² Korea Astronomy and Space Science Institute (KASI), Yuseong-gu, Daejeon 34055, Korea
²⁶³ Hobart and William Smith Colleges, Geneva, NY 14456, USA
²⁶⁴ International Institute of Physics, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-970, Brazil
²⁶⁵ Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, 00184 Roma, Italy
²⁶⁶ Lancaster University, Lancaster, LA1 4YW, UK
²⁶⁷ Università di Trento, Dipartimento di Matematica, 38123 Povo, Trento, Italy
²⁶⁸ Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
²⁶⁹ Dipartimento di Fisica, Università degli Studi di Torino, 10125 Torino, Italy
²⁷⁰ Indian Institute of Technology, Palaj, Gandhinagar, Gujarat 382355, India
²⁷¹ Department of Physics, Kyoto University, Sakyou-ku, Kyoto, Kyoto 606-8502, Japan
²⁷² Department of Electronic Control Engineering, National Institute of Technology, Nagaoka College, Nagaoka, Niigata 940-8532, Japan
²⁷³ Departamento de Matemática da Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications, Campus de Santiago, 3810-183 Aveiro, Portugal
²⁷⁴ Marquette University, 11420 W. Clybourn St., Milwaukee, WI 53233, USA
²⁷⁵ Graduate School of Science and Engineering, Hosei University, Koganei, Tokyo 184-8584, Japan
²⁷⁶ Faculty of Science, Toho University, Funabashi, Chiba 274-8510, Japan
²⁷⁷ Faculty of Information Science and Technology, Osaka Institute of Technology, Hirakata, Osaka 573-0196, Japan
²⁷⁸ Università di Firenze, Sesto Fiorentino, 50019, Italy
²⁷⁹ INAF, Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy
²⁸⁰ Indian Institute of Technology Hyderabad, Sangareddy, Khandi, Telangana 502285, India
²⁸¹ iTHEMS (Interdisciplinary Theoretical and Mathematical Sciences Program), The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama 351-0198, Japan
²⁸² INAF, Osservatorio di Astrofisica e Scienza dello Spazio, 40129 Bologna, Italy
²⁸³ Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Sagamihara, Kanagawa 252-5210, Japan
²⁸⁴ Andrews University, Berrien Springs, MI 49104, USA
²⁸⁵ Research Center for Space Science, Advanced Research Laboratories, Tokyo City University, Setagaya, Tokyo 158-0082, Japan
²⁸⁶ Institute for Cosmic Ray Research (ICRR), Research Center for Cosmic Neutrinos (RCCN), The University of Tokyo, Kashiwa, Chiba 277-8582, Japan
²⁸⁷ National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
²⁸⁸ Dipartimento di Scienze Aziendali – Management and Innovation Systems (DISA-MIS), Università di Salerno, 84084 Fisciano, Salerno, Italy
²⁸⁹ Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
²⁹⁰ Faculty of Science, Department of Physics, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
²⁹¹ Vrije Universiteit Brussel, Boulevard de la Plaine 2, 1050 Ixelles, Belgium
²⁹² Department of Communications Engineering, National Defense Academy of Japan, Yokosuka, Kanagawa 239-8686, Japan
²⁹³ Department of Physics, University of Florida, Gainesville, FL 32611, USA
²⁹⁴ Department of Information and Management Systems Engineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
²⁹⁵ Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
²⁹⁶ Department of Physics and Astronomy, Sejong University, Gwangjin-gu, Seoul 143-747, Korea
²⁹⁷ Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan
²⁹⁸ Department of Physics, Rikkyo University, Toshima-ku, Tokyo 171-8501, Japan

Received: 2 June 2021
Accepted: 9 September 2021

Abstract

Intermediate-mass black holes (IMBHs) span the approximate mass range 100−10⁵ M_⊙, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∼150 M_⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200 M_⊙ and effective aligned spin 0.8 at 0.056 Gpc⁻³ yr⁻¹ (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc⁻³ yr⁻¹.