Directional limits on persistent gravitational waves using data from Advanced LIGO's first two observing runs
- Creators
- Abbott, B. P.
- Abbott, R.
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Adhikari, R. X.
- Ananyeva, A.
- Anderson, S. B.
- Appert, S.
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Arai, K.
- Araya, M. C.
- Barayoga, J. C.
- Barish, B. C.
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Billingsley, G.
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Biscans, S
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Blackburn, J. K.
- Bork, R.
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Brooks, A. F.
- Brunett, S.
- Cahillane, C.
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Callister, T. A.
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Coughlin, M. W.
- Couvares, P.
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Coyne, D. C.
- Ehrens, P.
- Eichholz, J.
- Etzel, T.
- Feicht, J.
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Gossan, S. E.
- Grassia, P.
- Gustafson, E. K.
- Heptonstall, A. W.
- Hulko, M.
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Isi, M.
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Kamai, B.
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Kanner, J. B.
- Kasprzack, M.
- Kondrashov, V.
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Korth, W. Z.
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Kozak, D. B.
- Lazzarini, A.
- Lo, R. K. L.
- Markowitz, A.
- Maros, E.
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Massinger, T. J.
- Matichard, F.
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McIver, J.
- Meshkov, S.
- Pedraza, M.
- Quintero, E. A.
- Reitze, D. H.
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Richardson, J. W.
- Robertson, N. A.
- Rollins, J. G.
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Sachdev, S.
- Sanchez, E. J.
- Sanchez, L. E.
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Sun, L.
- Taylor, R.
- Torrie, C. I.
- Trudeau, R.
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Vajente, G.
- Vass, S.
- Venugopalan, G.
- Wade, A. R.
- Wallace, L.
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Weinstein, A. J.
- Willis, J. L.
- Wipf, C. C.
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Xiao, L.
- Yamamoto, H.
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Zhang, L.
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Zucker, M. E.
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Zweizig, J.
- Barkett, K.
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Chen, Y.
- Li, X.
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Ma, Y.
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Pang, B.
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Scheel, M.
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Tso, R.
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Varma, V.
- LIGO Scientific Collaboration
- Virgo Collaboration
Abstract
We perform an unmodeled search for persistent, directional gravitational wave (GW) sources using data from the first and second observing runs of Advanced LIGO. We do not find evidence for any GW signals. We place limits on the broadband GW flux emitted at 25 Hz from point sources with a power law spectrum at F_α,Θ<(0.05–25)×10^(−8)  erg cm^(−2) s^(−1) Hz−1 and the (normalized) energy density spectrum in GWs at 25 Hz from extended sources at Ω_α(Θ)<(0.19–2.89)×10^(−8)  sr^(−1) where α is the spectral index of the energy density spectrum. These represent improvements of 2.5–3× over previous limits. We also consider point sources emitting GWs at a single frequency, targeting the directions of Sco X-1, SN 1987A, and the Galactic center. The best upper limits on the strain amplitude of a potential source in these three directions range from h_0<(3.6–4.7)×10^(−25), 1.5× better than previous limits set with the same analysis method. We also report on a marginally significant outlier at 36.06 Hz. This outlier is not consistent with a persistent gravitational-wave source as its significance diminishes when combining all of the available data.
Additional Information
© 2019 American Physical Society. Received 19 April 2019; published 4 September 2019. 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 and 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 Paris Îlede-France Region, the National Research, Development and Innovation Office Hungary (NKFIH), 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.Attached Files
Published - PhysRevD.100.062001.pdf
Submitted - 1903.08844.pdf
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Additional details
- Eprint ID
- 95170
- Resolver ID
- CaltechAUTHORS:20190502-105838904
- NSF
- Science and Technology Facilities Council (STFC)
- Max-Planck-Society
- State of Niedersachsen/Germany
- Australian Research Council
- Istituto Nazionale di Fisica Nucleare (INFN)
- Centre National de la Recherche Scientifique (CNRS)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- Council of Scientific and Industrial Research (India)
- Department of Science and Technology (India)
- Science and Engineering Research Board (SERB)
- Ministry of Human Resource Development (India)
- Agencia Estatal de Investigación
- Vicepresidència i Conselleria d'Innovació, Recerca i Turisme
- Conselleria d'Educació i Universitat del Govern de les Illes Balears
- Conselleria d'Educació, Investigació, Cultura i Esport de la Generalitat Valenciana
- National Science Centre (Poland)
- Swiss National Science Foundation (SNSF)
- Russian Foundation for Basic Research
- Russian Science Foundation
- European Commission
- European Regional Development Funds (ERDF)
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- Lyon Institute of Origins (LIO)
- Paris ÃŽle-de-France Region
- National Research, Development and Innovation Fund (NKFIA)
- National Research Foundation of Korea
- Industry Canada
- Ontario Ministry of Economic Development and Innovation
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canadian Institute for Advanced Research (CIFAR)
- Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC)
- International Center for Theoretical Physics South American Institute for Fundamental Research (ICTP-SAIFR)
- Research Grants Council of Hong Kong
- National Natural Science Foundation of China
- Leverhulme Trust
- Research Corporation
- Ministry of Science and Technology (Taipei)
- Kavli Foundation
- Created
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2019-05-02Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Caltech groups
- LIGO, Astronomy Department