Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model
- 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 present results from a semicoherent search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analysing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650Hz, we find no evidence of gravitational radiation. At 194.6Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h^(95%)_0 = 3.47×10^(⁻²⁵) when marginalising over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering.
Additional Information
© 2019 American Physical Society. Received 28 June 2019; published 4 December 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 & 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 Île-de-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, INFN and CNRS for provision of computational resources. This work has been assigned LIGO document number ligo-p1800208.Attached Files
Published - PhysRevD.100.122002.pdf
Submitted - 1906.12040.pdf
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Additional details
- Eprint ID
- 98786
- Resolver ID
- CaltechAUTHORS:20190923-084235931
- 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 of 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 Île-de-France Region
- National Research, Development and Innovation Office Hungary (NKFI)
- 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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2019-09-23Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Caltech groups
- LIGO, Astronomy Department
- Other Numbering System Name
- LIGO Document
- Other Numbering System Identifier
- P1800208