Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

(LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration)

doi:10.1103/PhysRevD.106.062002

Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

(LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration)

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

25 Scopus citations

Abstract

Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searches of Laser Interferometer Gravitational-Wave Observatory data by including the orbital period in the search template grid, and by analyzing data from the latest (third) observing run. In the frequency range searched, from 60 to 500 Hz, we find no evidence of gravitational radiation. This is the most sensitive search for Scorpius X-1 using a HMM to date. For the most sensitive subband, starting at 256.06 Hz, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=6.16×10-26, assuming the orbital inclination angle takes its electromagnetically restricted value ι=44°. The upper limits on gravitational wave strain reported here are on average a factor of ∼3 lower than in the second observing run HMM search. This is the first Scorpius X-1 HMM search with upper limits that reach below the indirect torque-balance limit for certain subbands, assuming ι=44°.

Original language	English
Article number	062002
Journal	Physical Review D
Volume	106
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevD.106.062002
State	Published - 15 Sep 2022
Externally published	Yes

Funding

Funders	Funder number
Council of Scientific and Industrial Research, India
Ministry of Education, India
Australian Research Council
ICTP South American Institute for Fundamental Research
National Research Foundation of Korea
Narodowe Centrum Nauki
Scottish Universities Physics Alliance
National Science Foundation
Science and Technology Facilities Council
Ministry of Science, ICT and Future Planning
Scottish Funding Council
Actions de Recherche Concertées
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Ciencia e Innovación
Ministry of Science and Technology, Taiwan
French Lyon Institute of Origins
Leverhulme Trust
Science and Engineering Research Board
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Conselleria de Fons Europeus, Universitat i Cultura
Department of Science and Technology, Ministry of Science and Technology, India
Centre National de la Recherche Scientifique
Canada Foundation for Innovation
Kavli Foundation
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
KISTI-GSDC
European Commission
European Social Fund
Russian Foundation for Basic Research
U.S. Department of Energy
Brazilian Ministry of Science, Technology, and Innovations
Agencia Estatal de Investigación
Natural Sciences and Engineering Research Council of Canada
Research Grants Council, University Grants Committee
Direcció General de Política Universitària i Recerca, Govern Illes Balears
Russian Science Foundation
College of Natural Resources and Sciences, Humboldt State University
Advanced Technology Center
Fundacja na rzecz Nauki Polskiej
Hungarian Scientific Research Fund
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Fonds De La Recherche Scientifique - FNRS
Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital, Generalitat Valenciana
Royal Society
National Research Foundation
European Regional Development Fund
Ministerio de Universidades
Fonds Wetenschappelijk Onderzoek—Vlaanderen
University of Tokyo
Istituto Nazionale di Fisica Nucleare
Ministry of Education, Culture, Sports, Science and Technology
Korea Astronomy and Space Science Institute
National Natural Science Foundation of China
Academia Sinica	AS-CDA-105-M06
Japan Society for the Promotion of Science	18K03630, 17H06133, JP17H06361, 20A203, JP17H06364, 20H05854, JP17H06358, 20H05639
Fundação para a Ciência e a Tecnologia	Incentivo/SAU/LA0001/2013

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10.1103/PhysRevD.106.062002

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@article{f9425e1e328544d38b91f6dd6c56d7d3,

title = "Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data",

abstract = "Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searches of Laser Interferometer Gravitational-Wave Observatory data by including the orbital period in the search template grid, and by analyzing data from the latest (third) observing run. In the frequency range searched, from 60 to 500 Hz, we find no evidence of gravitational radiation. This is the most sensitive search for Scorpius X-1 using a HMM to date. For the most sensitive subband, starting at 256.06 Hz, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=6.16×10-26, assuming the orbital inclination angle takes its electromagnetically restricted value ι=44°. The upper limits on gravitational wave strain reported here are on average a factor of ∼3 lower than in the second observing run HMM search. This is the first Scorpius X-1 HMM search with upper limits that reach below the indirect torque-balance limit for certain subbands, assuming ι=44°.",

author = "{(LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration)} and R. Abbott and H. Abe and F. Acernese and K. Ackley and N. Adhikari and Adhikari, {R. X.} and Adkins, {V. K.} and Adya, {V. B.} and C. Affeldt and D. Agarwal and M. Agathos and K. Agatsuma and N. Aggarwal and Aguiar, {O. D.} and L. Aiello and A. Ain and P. Ajith and T. Akutsu and S. Albanesi and Alfaidi, {R. A.} and A. Allocca and Altin, {P. A.} and A. Amato and C. Anand and S. Anand and A. Ananyeva and Anderson, {S. B.} and Anderson, {W. G.} and M. Ando and T. Andrade and N. Andres and M. Andr{\'e}s-Carcasona and T. Andri{\'c} and Angelova, {S. V.} and S. Ansoldi and Antelis, {J. M.} and S. Antier and T. Apostolatos and Appavuravther, {E. Z.} and S. Appert and Apple, {S. K.} and K. Arai and A. Araya and Araya, {M. C.} and Areeda, {J. S.} and M. Ar{\`e}ne and N. Aritomi and N. Arnaud and M. Arogeti and J. Scheuer",

year = "2022",

month = sep,

day = "15",

doi = "10.1103/PhysRevD.106.062002",

language = "אנגלית",

volume = "106",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "6",

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TY - JOUR

T1 - Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

AU - (LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration)

AU - Abbott, R.

AU - Abe, H.

AU - Acernese, F.

AU - Ackley, K.

AU - Adhikari, N.

AU - Adhikari, R. X.

AU - Adkins, V. K.

AU - Adya, V. B.

AU - Affeldt, C.

AU - Agarwal, D.

AU - Agathos, M.

AU - Agatsuma, K.

AU - Aggarwal, N.

AU - Aguiar, O. D.

AU - Aiello, L.

AU - Ain, A.

AU - Ajith, P.

AU - Akutsu, T.

AU - Albanesi, S.

AU - Alfaidi, R. A.

AU - Allocca, A.

AU - Altin, P. A.

AU - Amato, A.

AU - Anand, C.

AU - Anand, S.

AU - Ananyeva, A.

AU - Anderson, S. B.

AU - Anderson, W. G.

AU - Ando, M.

AU - Andrade, T.

AU - Andres, N.

AU - Andrés-Carcasona, M.

AU - Andrić, T.

AU - Angelova, S. V.

AU - Ansoldi, S.

AU - Antelis, J. M.

AU - Antier, S.

AU - Apostolatos, T.

AU - Appavuravther, E. Z.

AU - Appert, S.

AU - Apple, S. K.

AU - Arai, K.

AU - Araya, A.

AU - Araya, M. C.

AU - Areeda, J. S.

AU - Arène, M.

AU - Aritomi, N.

AU - Arnaud, N.

AU - Arogeti, M.

AU - Scheuer, J.

PY - 2022/9/15

Y1 - 2022/9/15

N2 - Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searches of Laser Interferometer Gravitational-Wave Observatory data by including the orbital period in the search template grid, and by analyzing data from the latest (third) observing run. In the frequency range searched, from 60 to 500 Hz, we find no evidence of gravitational radiation. This is the most sensitive search for Scorpius X-1 using a HMM to date. For the most sensitive subband, starting at 256.06 Hz, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=6.16×10-26, assuming the orbital inclination angle takes its electromagnetically restricted value ι=44°. The upper limits on gravitational wave strain reported here are on average a factor of ∼3 lower than in the second observing run HMM search. This is the first Scorpius X-1 HMM search with upper limits that reach below the indirect torque-balance limit for certain subbands, assuming ι=44°.

AB - Results are presented for a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to allow for spin wandering. This search improves on previous HMM-based searches of Laser Interferometer Gravitational-Wave Observatory data by including the orbital period in the search template grid, and by analyzing data from the latest (third) observing run. In the frequency range searched, from 60 to 500 Hz, we find no evidence of gravitational radiation. This is the most sensitive search for Scorpius X-1 using a HMM to date. For the most sensitive subband, starting at 256.06 Hz, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=6.16×10-26, assuming the orbital inclination angle takes its electromagnetically restricted value ι=44°. The upper limits on gravitational wave strain reported here are on average a factor of ∼3 lower than in the second observing run HMM search. This is the first Scorpius X-1 HMM search with upper limits that reach below the indirect torque-balance limit for certain subbands, assuming ι=44°.

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DO - 10.1103/PhysRevD.106.062002

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AN - SCOPUS:85140061775

SN - 2470-0010

VL - 106

JO - Physical Review D

JF - Physical Review D

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ER -

Search for gravitational waves from Scorpius X-1 with a hidden Markov model in O3 LIGO data

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