Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

(LIGO Scientific Collaboration and Virgo Collaboration)

doi:10.1103/PhysRevD.100.122002

Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

(LIGO Scientific Collaboration and Virgo Collaboration)

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

52 Scopus citations

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 analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing 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.

Original language	English
Article number	122002
Journal	Physical Review D
Volume	100
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.100.122002
State	Published - 4 Dec 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

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, 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, 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, the Russian Foundation for Basic Research, the Russian Science Foundation, the European Commission, the European Regional Development Funds, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, the Hungarian Scientific Research Fund, the Lyon Institute of Origins, the Paris Île-de-France Region, the National Research, Development and Innovation Office Hungary, 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, the Research Grants Council of Hong Kong, the National Natural Science Foundation of China, the Leverhulme Trust, the Research Corporation, the Ministry of Science and Technology, Taiwan, and the Kavli Foundation. The authors gratefully acknowledge the support of the NSF, STFC, INFN, CNRS, Swinburne University of Technology, the National Collaborative Research Infrastructure Strategy of Australia, and the State of Niedersachsen/Germany for provision of computational resources. This work has been assigned LIGO Document No. LIGO-P1800208.

Funders	Funder number
Not added	ST/I006269/1, ST/K000845/1, ST/N000633/1, ST/N000072/1, ST/H002006/1
Netherlands Organisation for Scientific Research for the construction and operation of the Virgo detector
National Science Foundation	1707965, 1708081, 1921006, 1806824, 1912632, 1707835, 1726215, 1806990, 1912648
Kavli Foundation
Canadian Institute for Advanced Research
Institut des Origines de Lyon
Natural Sciences and Engineering Research Council of Canada
Ontario Ministry of Economic Development and Innovation
Science and Technology Facilities Council	ST/J00166X/1
Leverhulme Trust
Royal Society
Scottish Funding Council
Scottish Universities Physics Alliance
European Commission
Australian Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Swinburne University of Technology
National Natural Science Foundation of China
Science and Engineering Research Board
Russian Foundation for Basic Research
Research Grants Council, University Grants Committee
Generalitat Valenciana
Hungarian Scientific Research Fund
National Research Foundation of Korea
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Ministry of Human Resource Development
Ministry of Science and Technology, Taiwan
Centre National de la Recherche Scientifique
Russian Science Foundation
European Regional Development Fund
Universitat de les Illes Balears
Agencia Estatal de Investigación
Ministério da Ciência, Tecnologia, Inovações e Comunicações
Istituto Nazionale di Fisica Nucleare
ICTP South American Institute for Fundamental Research
National Research, Development and Innovation Office

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10.1103/PhysRevD.100.122002

Cite this

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title = "Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model",

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 analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing 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.",

author = "{(LIGO Scientific Collaboration and Virgo Collaboration)} and Abbott, {B. P.} and R. Abbott and Abbott, {T. D.} and S. Abraham and F. Acernese and K. Ackley and C. Adams and Adhikari, {R. X.} and Adya, {V. B.} and C. Affeldt and M. Agathos and K. Agatsuma and N. Aggarwal and Aguiar, {O. D.} and L. Aiello and A. Ain and P. Ajith and G. Allen and A. Allocca and Aloy, {M. A.} and Altin, {P. A.} and A. Amato and A. Ananyeva and Anderson, {S. B.} and Anderson, {W. G.} and Angelova, {S. V.} and S. Antier and S. Appert and K. Arai and Araya, {M. C.} and Areeda, {J. S.} and M. Ar{\`e}ne and N. Arnaud and S. Ascenzi and G. Ashton and Aston, {S. M.} and P. Astone and F. Aubin and P. Aufmuth and K. Aultoneal and C. Austin and V. Avendano and A. Avila-Alvarez and S. Babak and P. Bacon and F. Badaracco and Bader, {M. K.M.} and S. Bae and Baker, {P. T.} and O. Birnholtz",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = dec,

day = "4",

doi = "10.1103/PhysRevD.100.122002",

language = "אנגלית",

volume = "100",

journal = "Physical Review D",

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T1 - Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

AU - (LIGO Scientific Collaboration and Virgo Collaboration)

AU - Abbott, B. P.

AU - Abbott, R.

AU - Abbott, T. D.

AU - Abraham, S.

AU - Acernese, F.

AU - Ackley, K.

AU - Adams, C.

AU - Adhikari, R. X.

AU - Adya, V. B.

AU - Affeldt, C.

AU - Agathos, M.

AU - Agatsuma, K.

AU - Aggarwal, N.

AU - Aguiar, O. D.

AU - Aiello, L.

AU - Ain, A.

AU - Ajith, P.

AU - Allen, G.

AU - Allocca, A.

AU - Aloy, M. A.

AU - Altin, P. A.

AU - Amato, A.

AU - Ananyeva, A.

AU - Anderson, S. B.

AU - Anderson, W. G.

AU - Angelova, S. V.

AU - Antier, S.

AU - Appert, S.

AU - Arai, K.

AU - Araya, M. C.

AU - Areeda, J. S.

AU - Arène, M.

AU - Arnaud, N.

AU - Ascenzi, S.

AU - Ashton, G.

AU - Aston, S. M.

AU - Astone, P.

AU - Aubin, F.

AU - Aufmuth, P.

AU - Aultoneal, K.

AU - Austin, C.

AU - Avendano, V.

AU - Avila-Alvarez, A.

AU - Babak, S.

AU - Bacon, P.

AU - Badaracco, F.

AU - Bader, M. K.M.

AU - Bae, S.

AU - Baker, P. T.

AU - Birnholtz, O.

PY - 2019/12/4

Y1 - 2019/12/4

N2 - 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 analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing 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.

AB - 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 analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing 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.

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DO - 10.1103/PhysRevD.100.122002

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AN - SCOPUS:85076733600

SN - 2470-0010

VL - 100

JO - Physical Review D

JF - Physical Review D

IS - 12

M1 - 122002

ER -

Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

Abstract

Bibliographical note

Funding

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