Published April 15, 2017
| Published + Submitted
Journal Article
Open
Search for continuous gravitational waves from neutron stars in globular cluster NGC 6544
- Creators
- Abbott, B. P.
- Abbott, R.
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Adhikari, R. X.
- Anderson, S. B.
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Arai, K.
- Araya, M. C.
- Barayoga, J. C.
- Barish, B. C.
- Berger, B. K.
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Billingsley, G.
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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.
- Cepeda, C. B.
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Chen, Y.
- Couvares, P.
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Coyne, D. C.
- Dergachev, V.
- Drever, R. W. P.
- Ehrens, P.
- Eichholz, J.
- Engels, W.
- Etzel, T.
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Gossan, S. E.
- Gushwa, K. E.
- Gustafson, E. K.
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Hall, E. D.
- Heptonstall, A. W.
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Isi, M.
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Kanner, J. B.
- Kells, W.
- Kondrashov, V.
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Korth, W. Z.
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Kozak, D. B.
- Lewis, J. B.
- Maros, E.
- Marx, J. N.
- McIntyre, G.
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McIver, J.
- Meshkov, S.
- Patel, P.
- Pedraza, M.
- Perreca, A.
- Price, L. R.
- Quintero, E. A.
- Reitze, D. H.
- Robertson, N. A.
- Rollins, J. G.
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Sachdev, S.
- Sanchez, E. J.
- Schmidt, P.
- Singer, A.
- Smith, N. D.
- Smith, R. J. E.
- Taylor, R.
- Thirugnanasambandam, M. P.
- Torrie, C. I.
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Vajente, G.
- Vass, S.
- Wallace, L.
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Weinstein, A. J.
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Williams, R. D.
- Wipf, C. C.
- Yamamoto, H.
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Zhang, L.
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Zucker, M. E.
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Zweizig, J.
- LIGO Scientific Collaboration
- Virgo Collaboration
Abstract
We describe a directed search for continuous gravitational waves in data from the sixth initial LIGO science run. The target was the nearby globular cluster NGC 6544 at a distance of ≈2.7  kpc. The search covered a broad band of frequencies along with first and second frequency derivatives for a fixed sky position. The search coherently integrated data from the two LIGO interferometers over a time span of 9.2 days using the matched-filtering F-statistic. We found no gravitational-wave signals and set 95% confidence upper limits as stringent as 6.0×10^(−25) on intrinsic strain and 8.5×10−6 on fiducial ellipticity. These values beat the indirect limits from energy conservation for stars with characteristic spin-down ages older than 300 years and are within the range of theoretical predictions for possible neutron-star ellipticities. An important feature of this search was use of a barycentric resampling algorithm which substantially reduced computational cost; this method is used extensively in searches of Advanced LIGO and Virgo detector data.
Additional Information
© 2017 American Physical Society. Received 12 July 2016; published 19 April 2017. 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, Department of Science and Technology, India, Science & Engineering Research Board (SERB), India, Ministry of Human Resource Development, India, the Spanish Ministerio de EconomÃa y Competitividad, the Conselleria d'Economia i Competitivitat and Conselleria d'Educació, Cultura I Universitats of the Govern de les Illes Balears, the National Science Centre of Poland, the European Commission, 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 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, Canadian Institute for Advanced Research, the Brazilian Ministry of Science, Technology, and Innovation, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Russian Foundation for Basic Research, the Leverhulme Trust, the Research Corporation, 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. This document has been assigned LIGO Laboratory document number LIGO-P1500225.Attached Files
Published - PhysRevD.95.082005.pdf
Submitted - 1607.02216.pdf
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Additional details
- Eprint ID
- 73610
- Resolver ID
- CaltechAUTHORS:20170123-093344120
- NSF
- Science and Technology Facilities Council (STFC)
- Max Planck Society
- State of Niedersachsen/Germany
- Australian Research Council
- Italian 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)
- Ministerio de EconomÃa y Competitividad (MINECO)
- Conselleria d'Economia i Competitivitat
- Conselleria d'Educació, Cultura i Universitats of the Govern de les Illes Balears
- National Science Centre (Poland)
- European Commission
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- Lyon Institute of Origins (LIO)
- National Research Foundation of Korea
- Industry Canada
- Ontario Ministry of Research and Innovation
- Natural Science and Engineering Research Council Canada (NSERC)
- Canadian Institute for Advanced Research (CIFAR)
- Ministério da Ciência, Tecnologia e Inovação
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Russian Foundation for Basic Research
- Leverhulme Trust
- Research Corporation
- Ministry of Science and Technology (Taipei)
- Kavli Foundation
- Created
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2017-01-24Created from EPrint's datestamp field
- Updated
-
2021-11-11Created from EPrint's last_modified field
- Caltech groups
- LIGO, Astronomy Department
- Other Numbering System Name
- LIGO Document
- Other Numbering System Identifier
- LIGO-P1500225