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All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run

  • LIGO Scientific Collaboration and Virgo Collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

We present the results of a search for long-duration gravitational-wave transients in the data from the Advanced LIGO second observation run; we search for gravitational-wave transients of 2-500 s duration in the 24-2048 Hz frequency band with minimal assumptions about signal properties such as waveform morphologies, polarization, sky location or time of occurrence. Signal families covered by these search algorithms include fallback accretion onto neutron stars, broadband chirps from innermost stable circular orbit waves around rotating black holes, eccentric inspiral-merger-ringdown compact binary coalescence waveforms, and other models. The second observation run totals about 118.3 days of coincident data between November 2016 and August 2017. We find no significant events within the parameter space that we searched, apart from the already-reported binary neutron star merger GW170817. We thus report sensitivity limits on the root-sum-square strain amplitude hrss at 50% efficiency. These sensitivity estimates are an improvement relative to the first observing run and also done with an enlarged set of gravitational-wave transient waveforms. Overall, the best search sensitivity is hrss50%=2.7×10-22 Hz-1/2 for a millisecond magnetar model. For eccentric compact binary coalescence signals, the search sensitivity reaches hrss50%=9.6×10-22 Hz-1/2.

Original languageEnglish
Article number104033
JournalPhysical Review D
Volume99
Issue number10
DOIs
Publication statusPublished - 15 May 2019

Funding

The authors gratefully acknowledge the support of the United States National Science Foundation (NSF) for the construction and operation of the LIGO Laboratory and Advanced LIGO as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, the Max-Planck-Society (MPS), and the State of Niedersachsen/Germany for support of the construction of Advanced LIGO and construction and operation of the GEO600 detector. Additional support for Advanced LIGO was provided by the Australian Research Council. The authors gratefully acknowledge the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS) and the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, for the construction and operation of the Virgo detector and the creation and support of the EGO consortium. The authors also gratefully acknowledge research support from these agencies as well as by the Council of Scientific and Industrial Research of India, the Department of Science and Technology, India, the Science & Engineering Research Board (SERB), India, the Ministry of Human Resource Development, India, the Spanish Agencia Estatal de Investigación, the Vicepresidència i Conselleria d’Innovació, Recerca i Turisme and the Conselleria d’Educació i Universitat del Govern de les Illes Balears, the Conselleria d’Educació, Investigació, Cultura i Esport de la Generalitat Valenciana, the National Science Centre of Poland, the Swiss National Science Foundation (SNSF), the Russian Foundation for Basic Research, the Russian Science Foundation, the European Commission, the European Regional Development Funds (ERDF), the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, the Hungarian Scientific Research Fund (OTKA), the Lyon Institute of Origins (LIO), the National Research, Development and Innovation Office Hungary (NKFI), the National Research Foundation of Korea, Industry Canada and the Province of Ontario through the Ministry of Economic Development and Innovation, the Natural Science and Engineering Research Council Canada, the Canadian Institute for Advanced Research, the Brazilian Ministry of Science, Technology, Innovations, and Communications, the International Center for Theoretical Physics South American Institute for Fundamental Research (ICTP-SAIFR), the Research Grants Council of Hong Kong, the National Natural Science Foundation of China (NSFC), the Leverhulme Trust, the Research Corporation, the Ministry of Science and Technology (MOST), Taiwan and the Kavli Foundation. The authors gratefully acknowledge the support of the NSF, STFC, MPS, INFN, CNRS and the State of Niedersachsen/Germany for provision of computational resources.

FundersFunder number
Council of Scientific and Industrial Research, India
Ministry of Human Resource Development
Australian Research Council
ICTP South American Institute for Fundamental Research
Ministério da Ciência, Tecnologia, Inovações e Comunicações
National Kidney Foundation of Iowa
National Research Foundation of Korea
Narodowe Centrum Nauki
Scottish Universities Physics Alliance
Scottish Funding Council
Ministry of Science and Technology, Taiwan
Leverhulme Trust
Science and Engineering Research Board
Instituto Nazionale di Fisica Nucleare
Ontario Ministry of Economic Development and Innovation
Department of Science and Technology, Ministry of Science and Technology, India
Centre National de la Recherche Scientifique
Kavli Foundation
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
European Commission
Russian Foundation for Basic Research
Directorate for Mathematical and Physical Sciences
Agencia Estatal de Investigación
Natural Sciences and Engineering Research Council of Canada
Research Grants Council, University Grants Committee
Russian Science Foundation
Hungarian Scientific Research Fund
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Royal Society
Canadian Institute for Advanced Research
Universitat de les Illes Balears
European Regional Development Fund
Generalitat Valenciana
Istituto Nazionale di Fisica Nucleare
National Natural Science Foundation of China
National Science Foundation1708081, 1707965, 1921006, 1912632, 1806824, 1806885, 1700765, 1707835, 1726215, 1806461, 1806990, 1806165
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