First low frequency all-sky search for continuous gravitational wave signals

J. Aasi, B.P. Abbott, R. Abbott, T.D. Abbott, M.R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R.X. Adhikari, V.B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O.D. Aguiar, A. Ain, P. Ajith, B. Allen & 81 others A. Allocca, D.V. Amariutei, M. Andersen, S.B. Anderson, W.G. Anderson, K. Arai, M.C. Araya, C.C. Arceneaux, J.S. Areeda, N. Arnaud, G. Ashton, S.M. Aston, P. Astone, P. Aufmuth, C. Aulbert, S. Babak, P.T. Baker, F. Baldaccini, G. Ballardin, S.W. Ballmer, J.C. Barayoga, S.E. Barclay, B.C. Barish, D. Barker, F. Barone, B. Barr, L. Barsotti, M. Barsuglia, J. Bartlett, M.A. Barton, I. Bartos, R. Bassiri, A. Basti, J.C. Batch, C. Baune, V. Bavigadda, B. Behnke, M. Bejger, C. Belczynski, A.S. Bell, B.K. Berger, J. Bergman, G. Bergmann, C.P.L. Berry, D. Bersanetti, A. Bertolini, J. Betzwieser, S. Bhagwat, R. Bhandare, I.A. Bilenko, G. Billingsley, J. Birch, R. Birney, S. Biscans, M. Bitossi, C. Biwer, M.A. Bizouard, J.K. Blackburn, Carl Blair, David Blair, S. Bloemen, O. Bock, T.P. Bodiya, M. Boer, G. Bogaert, P. Bojtos, C. Bond, F. Bondu, R. Bonnand, X. Chen, S.K. Chung, David Coward, Stefan Danilishin, Q. Fang, Eric Howell, Li Ju, Y. Ma, Linqing Wen, Chunnong Zhao, Xingjiang Zhu, Bruce Gendre

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    Abstract

    © 2016 American Physical Society. In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 and 128 Hz with a range of spin-down between -1.0×10-10 and +1.5×10-11 Hz/s, and was based on a hierarchical approach. The starting point was a set of short fast Fourier transforms, of length 8192 s, built from the calibrated strain data. Aggressive data cleaning, in both the time and frequency domains, has been done in order to remove, as much as possible, the effect of disturbances of instrumental origin. On each data set a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Selected candidates have been subject to a follow-up by constructing a new set of longer fast Fourier transforms followed by a further incoherent analysis, still based on the FrequencyHough transform. No evidence for continuous gravitational wave signals was found, and therefore we have set a population-based joint VSR2-VSR4 90% confidence level upper limit on the dimensionless gravitational wave strain in the frequency range between 20 and 128 Hz. This is the first all-sky search for continuous gravitational waves conducted, on data of ground-based interferometric detectors, at frequencies below 50 Hz. We set upper limits in the range between about 10-24 and 2×10-23 at most frequencies. Our upper limits on signal strain show an improvement of up to a factor of ~2 with respect to the results of previous all-sky searches at frequencies below 80 Hz.
    Original languageEnglish
    Pages (from-to)27
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume93
    Issue number4
    Early online date15 Feb 2016
    DOIs
    Publication statusPublished - 25 Feb 2016

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    Aasi, J. ; Abbott, B.P. ; Abbott, R. ; Abbott, T.D. ; Abernathy, M.R. ; Acernese, F. ; Ackley, K. ; Adams, C. ; Adams, T. ; Addesso, P. ; Adhikari, R.X. ; Adya, V.B. ; Affeldt, C. ; Agathos, M. ; Agatsuma, K. ; Aggarwal, N. ; Aguiar, O.D. ; Ain, A. ; Ajith, P. ; Allen, B. ; Allocca, A. ; Amariutei, D.V. ; Andersen, M. ; Anderson, S.B. ; Anderson, W.G. ; Arai, K. ; Araya, M.C. ; Arceneaux, C.C. ; Areeda, J.S. ; Arnaud, N. ; Ashton, G. ; Aston, S.M. ; Astone, P. ; Aufmuth, P. ; Aulbert, C. ; Babak, S. ; Baker, P.T. ; Baldaccini, F. ; Ballardin, G. ; Ballmer, S.W. ; Barayoga, J.C. ; Barclay, S.E. ; Barish, B.C. ; Barker, D. ; Barone, F. ; Barr, B. ; Barsotti, L. ; Barsuglia, M. ; Bartlett, J. ; Barton, M.A. ; Bartos, I. ; Bassiri, R. ; Basti, A. ; Batch, J.C. ; Baune, C. ; Bavigadda, V. ; Behnke, B. ; Bejger, M. ; Belczynski, C. ; Bell, A.S. ; Berger, B.K. ; Bergman, J. ; Bergmann, G. ; Berry, C.P.L. ; Bersanetti, D. ; Bertolini, A. ; Betzwieser, J. ; Bhagwat, S. ; Bhandare, R. ; Bilenko, I.A. ; Billingsley, G. ; Birch, J. ; Birney, R. ; Biscans, S. ; Bitossi, M. ; Biwer, C. ; Bizouard, M.A. ; Blackburn, J.K. ; Blair, Carl ; Blair, David ; Bloemen, S. ; Bock, O. ; Bodiya, T.P. ; Boer, M. ; Bogaert, G. ; Bojtos, P. ; Bond, C. ; Bondu, F. ; Bonnand, R. ; Chen, X. ; Chung, S.K. ; Coward, David ; Danilishin, Stefan ; Fang, Q. ; Howell, Eric ; Ju, Li ; Ma, Y. ; Wen, Linqing ; Zhao, Chunnong ; Zhu, Xingjiang ; Gendre, Bruce. / First low frequency all-sky search for continuous gravitational wave signals. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2016 ; Vol. 93, No. 4. pp. 27.
    @article{1271f5fdc3f24eb78c30af85d9f39789,
    title = "First low frequency all-sky search for continuous gravitational wave signals",
    abstract = "{\circledC} 2016 American Physical Society. In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 and 128 Hz with a range of spin-down between -1.0×10-10 and +1.5×10-11 Hz/s, and was based on a hierarchical approach. The starting point was a set of short fast Fourier transforms, of length 8192 s, built from the calibrated strain data. Aggressive data cleaning, in both the time and frequency domains, has been done in order to remove, as much as possible, the effect of disturbances of instrumental origin. On each data set a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Selected candidates have been subject to a follow-up by constructing a new set of longer fast Fourier transforms followed by a further incoherent analysis, still based on the FrequencyHough transform. No evidence for continuous gravitational wave signals was found, and therefore we have set a population-based joint VSR2-VSR4 90{\%} confidence level upper limit on the dimensionless gravitational wave strain in the frequency range between 20 and 128 Hz. This is the first all-sky search for continuous gravitational waves conducted, on data of ground-based interferometric detectors, at frequencies below 50 Hz. We set upper limits in the range between about 10-24 and 2×10-23 at most frequencies. Our upper limits on signal strain show an improvement of up to a factor of ~2 with respect to the results of previous all-sky searches at frequencies below 80 Hz.",
    author = "J. Aasi and B.P. Abbott and R. Abbott and T.D. Abbott and M.R. Abernathy and F. Acernese and K. Ackley and C. Adams and T. Adams and P. Addesso and R.X. Adhikari and V.B. Adya and C. Affeldt and M. Agathos and K. Agatsuma and N. Aggarwal and O.D. Aguiar and A. Ain and P. Ajith and B. Allen and A. Allocca and D.V. Amariutei and M. Andersen and S.B. Anderson and W.G. Anderson and K. Arai and M.C. Araya and C.C. Arceneaux and J.S. Areeda and N. Arnaud and G. Ashton and S.M. Aston and P. Astone and P. Aufmuth and C. Aulbert and S. Babak and P.T. Baker and F. Baldaccini and G. Ballardin and S.W. Ballmer and J.C. Barayoga and S.E. Barclay and B.C. Barish and D. Barker and F. Barone and B. Barr and L. Barsotti and M. Barsuglia and J. Bartlett and M.A. Barton and I. Bartos and R. Bassiri and A. Basti and J.C. Batch and C. Baune and V. Bavigadda and B. Behnke and M. Bejger and C. Belczynski and A.S. Bell and B.K. Berger and J. Bergman and G. Bergmann and C.P.L. Berry and D. Bersanetti and A. Bertolini and J. Betzwieser and S. Bhagwat and R. Bhandare and I.A. Bilenko and G. Billingsley and J. Birch and R. Birney and S. Biscans and M. Bitossi and C. Biwer and M.A. Bizouard and J.K. Blackburn and Carl Blair and David Blair and S. Bloemen and O. Bock and T.P. Bodiya and M. Boer and G. Bogaert and P. Bojtos and C. Bond and F. Bondu and R. Bonnand and X. Chen and S.K. Chung and David Coward and Stefan Danilishin and Q. Fang and Eric Howell and Li Ju and Y. Ma and Linqing Wen and Chunnong Zhao and Xingjiang Zhu and Bruce Gendre",
    year = "2016",
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    doi = "10.1103/PhysRevD.93.042007",
    language = "English",
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    pages = "27",
    journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",
    issn = "1550-7998",
    publisher = "American Physical Society",
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    Aasi, J, Abbott, BP, Abbott, R, Abbott, TD, Abernathy, MR, Acernese, F, Ackley, K, Adams, C, Adams, T, Addesso, P, Adhikari, RX, Adya, VB, Affeldt, C, Agathos, M, Agatsuma, K, Aggarwal, N, Aguiar, OD, Ain, A, Ajith, P, Allen, B, Allocca, A, Amariutei, DV, Andersen, M, Anderson, SB, Anderson, WG, Arai, K, Araya, MC, Arceneaux, CC, Areeda, JS, Arnaud, N, Ashton, G, Aston, SM, Astone, P, Aufmuth, P, Aulbert, C, Babak, S, Baker, PT, Baldaccini, F, Ballardin, G, Ballmer, SW, Barayoga, JC, Barclay, SE, Barish, BC, Barker, D, Barone, F, Barr, B, Barsotti, L, Barsuglia, M, Bartlett, J, Barton, MA, Bartos, I, Bassiri, R, Basti, A, Batch, JC, Baune, C, Bavigadda, V, Behnke, B, Bejger, M, Belczynski, C, Bell, AS, Berger, BK, Bergman, J, Bergmann, G, Berry, CPL, Bersanetti, D, Bertolini, A, Betzwieser, J, Bhagwat, S, Bhandare, R, Bilenko, IA, Billingsley, G, Birch, J, Birney, R, Biscans, S, Bitossi, M, Biwer, C, Bizouard, MA, Blackburn, JK, Blair, C, Blair, D, Bloemen, S, Bock, O, Bodiya, TP, Boer, M, Bogaert, G, Bojtos, P, Bond, C, Bondu, F, Bonnand, R, Chen, X, Chung, SK, Coward, D, Danilishin, S, Fang, Q, Howell, E, Ju, L, Ma, Y, Wen, L, Zhao, C, Zhu, X & Gendre, B 2016, 'First low frequency all-sky search for continuous gravitational wave signals' Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 93, no. 4, pp. 27. https://doi.org/10.1103/PhysRevD.93.042007

    First low frequency all-sky search for continuous gravitational wave signals. / Aasi, J.; Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abernathy, M.R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R.X.; Adya, V.B.; Affeldt, C.; Agathos, M.; Agatsuma, K.; Aggarwal, N.; Aguiar, O.D.; Ain, A.; Ajith, P.; Allen, B.; Allocca, A.; Amariutei, D.V.; Andersen, M.; Anderson, S.B.; Anderson, W.G.; Arai, K.; Araya, M.C.; Arceneaux, C.C.; Areeda, J.S.; Arnaud, N.; Ashton, G.; Aston, S.M.; Astone, P.; Aufmuth, P.; Aulbert, C.; Babak, S.; Baker, P.T.; Baldaccini, F.; Ballardin, G.; Ballmer, S.W.; Barayoga, J.C.; Barclay, S.E.; Barish, B.C.; Barker, D.; Barone, F.; Barr, B.; Barsotti, L.; Barsuglia, M.; Bartlett, J.; Barton, M.A.; Bartos, I.; Bassiri, R.; Basti, A.; Batch, J.C.; Baune, C.; Bavigadda, V.; Behnke, B.; Bejger, M.; Belczynski, C.; Bell, A.S.; Berger, B.K.; Bergman, J.; Bergmann, G.; Berry, C.P.L.; Bersanetti, D.; Bertolini, A.; Betzwieser, J.; Bhagwat, S.; Bhandare, R.; Bilenko, I.A.; Billingsley, G.; Birch, J.; Birney, R.; Biscans, S.; Bitossi, M.; Biwer, C.; Bizouard, M.A.; Blackburn, J.K.; Blair, Carl; Blair, David; Bloemen, S.; Bock, O.; Bodiya, T.P.; Boer, M.; Bogaert, G.; Bojtos, P.; Bond, C.; Bondu, F.; Bonnand, R.; Chen, X.; Chung, S.K.; Coward, David; Danilishin, Stefan; Fang, Q.; Howell, Eric; Ju, Li; Ma, Y.; Wen, Linqing; Zhao, Chunnong; Zhu, Xingjiang; Gendre, Bruce.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 93, No. 4, 25.02.2016, p. 27.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - First low frequency all-sky search for continuous gravitational wave signals

    AU - Aasi, J.

    AU - Abbott, B.P.

    AU - Abbott, R.

    AU - Abbott, T.D.

    AU - Abernathy, M.R.

    AU - Acernese, F.

    AU - Ackley, K.

    AU - Adams, C.

    AU - Adams, T.

    AU - Addesso, P.

    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 - Ain, A.

    AU - Ajith, P.

    AU - Allen, B.

    AU - Allocca, A.

    AU - Amariutei, D.V.

    AU - Andersen, M.

    AU - Anderson, S.B.

    AU - Anderson, W.G.

    AU - Arai, K.

    AU - Araya, M.C.

    AU - Arceneaux, C.C.

    AU - Areeda, J.S.

    AU - Arnaud, N.

    AU - Ashton, G.

    AU - Aston, S.M.

    AU - Astone, P.

    AU - Aufmuth, P.

    AU - Aulbert, C.

    AU - Babak, S.

    AU - Baker, P.T.

    AU - Baldaccini, F.

    AU - Ballardin, G.

    AU - Ballmer, S.W.

    AU - Barayoga, J.C.

    AU - Barclay, S.E.

    AU - Barish, B.C.

    AU - Barker, D.

    AU - Barone, F.

    AU - Barr, B.

    AU - Barsotti, L.

    AU - Barsuglia, M.

    AU - Bartlett, J.

    AU - Barton, M.A.

    AU - Bartos, I.

    AU - Bassiri, R.

    AU - Basti, A.

    AU - Batch, J.C.

    AU - Baune, C.

    AU - Bavigadda, V.

    AU - Behnke, B.

    AU - Bejger, M.

    AU - Belczynski, C.

    AU - Bell, A.S.

    AU - Berger, B.K.

    AU - Bergman, J.

    AU - Bergmann, G.

    AU - Berry, C.P.L.

    AU - Bersanetti, D.

    AU - Bertolini, A.

    AU - Betzwieser, J.

    AU - Bhagwat, S.

    AU - Bhandare, R.

    AU - Bilenko, I.A.

    AU - Billingsley, G.

    AU - Birch, J.

    AU - Birney, R.

    AU - Biscans, S.

    AU - Bitossi, M.

    AU - Biwer, C.

    AU - Bizouard, M.A.

    AU - Blackburn, J.K.

    AU - Blair, Carl

    AU - Blair, David

    AU - Bloemen, S.

    AU - Bock, O.

    AU - Bodiya, T.P.

    AU - Boer, M.

    AU - Bogaert, G.

    AU - Bojtos, P.

    AU - Bond, C.

    AU - Bondu, F.

    AU - Bonnand, R.

    AU - Chen, X.

    AU - Chung, S.K.

    AU - Coward, David

    AU - Danilishin, Stefan

    AU - Fang, Q.

    AU - Howell, Eric

    AU - Ju, Li

    AU - Ma, Y.

    AU - Wen, Linqing

    AU - Zhao, Chunnong

    AU - Zhu, Xingjiang

    AU - Gendre, Bruce

    PY - 2016/2/25

    Y1 - 2016/2/25

    N2 - © 2016 American Physical Society. In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 and 128 Hz with a range of spin-down between -1.0×10-10 and +1.5×10-11 Hz/s, and was based on a hierarchical approach. The starting point was a set of short fast Fourier transforms, of length 8192 s, built from the calibrated strain data. Aggressive data cleaning, in both the time and frequency domains, has been done in order to remove, as much as possible, the effect of disturbances of instrumental origin. On each data set a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Selected candidates have been subject to a follow-up by constructing a new set of longer fast Fourier transforms followed by a further incoherent analysis, still based on the FrequencyHough transform. No evidence for continuous gravitational wave signals was found, and therefore we have set a population-based joint VSR2-VSR4 90% confidence level upper limit on the dimensionless gravitational wave strain in the frequency range between 20 and 128 Hz. This is the first all-sky search for continuous gravitational waves conducted, on data of ground-based interferometric detectors, at frequencies below 50 Hz. We set upper limits in the range between about 10-24 and 2×10-23 at most frequencies. Our upper limits on signal strain show an improvement of up to a factor of ~2 with respect to the results of previous all-sky searches at frequencies below 80 Hz.

    AB - © 2016 American Physical Society. In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The search covered the full sky, a frequency range between 20 and 128 Hz with a range of spin-down between -1.0×10-10 and +1.5×10-11 Hz/s, and was based on a hierarchical approach. The starting point was a set of short fast Fourier transforms, of length 8192 s, built from the calibrated strain data. Aggressive data cleaning, in both the time and frequency domains, has been done in order to remove, as much as possible, the effect of disturbances of instrumental origin. On each data set a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Selected candidates have been subject to a follow-up by constructing a new set of longer fast Fourier transforms followed by a further incoherent analysis, still based on the FrequencyHough transform. No evidence for continuous gravitational wave signals was found, and therefore we have set a population-based joint VSR2-VSR4 90% confidence level upper limit on the dimensionless gravitational wave strain in the frequency range between 20 and 128 Hz. This is the first all-sky search for continuous gravitational waves conducted, on data of ground-based interferometric detectors, at frequencies below 50 Hz. We set upper limits in the range between about 10-24 and 2×10-23 at most frequencies. Our upper limits on signal strain show an improvement of up to a factor of ~2 with respect to the results of previous all-sky searches at frequencies below 80 Hz.

    U2 - 10.1103/PhysRevD.93.042007

    DO - 10.1103/PhysRevD.93.042007

    M3 - Article

    VL - 93

    SP - 27

    JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

    JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

    SN - 1550-7998

    IS - 4

    ER -