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First joint observation by the underground gravitational-wave detector KAGRA with GEO 600

  • The LIGO Scientific Collaboration
  • , the Virgo Collaboration
  • , the KAGRA Collaboration
  • California Institute of Technology
  • Graduate School of Science
  • Tokyo Institute of Technology
  • Dipartimento di Farmacia
  • University of Salerno
  • INFN Sezione di Napoli
  • Monash Centre for Astrophysics
  • Monash University
  • University of Wisconsin-Milwaukee
  • Louisiana State University
  • Australian National University
  • Max-Planck-Institut fuer Gravitationsphysik
  • Leibniz Universität Hannover
  • Inter-University Centre for Astronomy and Astrophysics India
  • University of Cambridge
  • Theoretisch-Physikalisches Institut
  • Friedrich-Schiller University
  • University of Birmingham
  • Northwestern University
  • Instituto Nacional de Pesquisas Espaciais
  • Cardiff University
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
  • Tata Institute of Fundamental Research
  • National Astronomical Observatory
  • Advanced Technology Center
  • Dipartimento di Fisica
  • University of Turin
  • INFN Sezione di Torino
  • University of Glasgow
  • University of Naples Federico II
  • IGFL, Université de Lyon, Université Lyon 1
  • Department of Physics
  • University of Tokyo
  • Research Center for the Early Universe
  • University of Barcelona
  • CNRS
  • Université Savoie Mont Blanc
  • Pompeu Fabra University (UPF)
  • Gran Sasso Science Institute
  • University of Strathclyde
  • Dipartimento di Scienze Matematiche
  • and Physics University of Udine
  • INFN Sezione di Trieste
  • Embry-Riddle Aeronautical University, Prescott
  • Université Côte d’Azur
  • University of Amsterdam
  • School of Science Building
  • University of Athens
  • INFN Sezione di Perugia
  • Università di Camerino
  • University of Camerino
  • American University
  • California State University Fullerton
  • Laboratoire de Probabilités et Modèles Aléatoires
  • Université Paris-Saclay
  • European Gravitational Observatory (EGO)
  • College of Computing

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

We report the results of the first joint observation of the KAGRA detector with GEO 600. KAGRA is a cryogenic and underground gravitational-wave detector consisting of a laser interferometer with 3 km arms, located in Kamioka, Gifu, Japan. GEO 600 is a British-German laser interferometer with 600 m arms, located near Hannover, Germany. GEO 600 and KAGRA performed a joint observing run from April 7 to 20, 2020. We present the results of the joint analysis of the GEO-KAGRA data for transient gravitational-wave signals, including the coalescence of neutron-star binaries and generic unmodeled transients. We also perform dedicated searches for binary coalescence signals and generic transients associated with gamma-ray burst events observed during the joint run. No gravitational-wave events were identified. We evaluate the minimum detectable amplitude for various types of transient signals and the spacetime volume for which the network is sensitive to binary neutron-star coalescences. We also place lower limits on the distances to the gamma-ray bursts analyzed based on the non-detection of an associated gravitational-wave signal for several signal models, including binary coalescences. These analyses demonstrate the feasibility and utility of KAGRA as a member of the global gravitational-wave detector network.

Original languageEnglish
Article number063F01
JournalProgress of Theoretical and Experimental Physics
Volume2022
Issue number6
DOIs
Publication statusPublished - 1 Jun 2022
Externally publishedYes

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