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@Article{AasiAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB:2015:NaSeCo,
               author = "Aasi, J. and Abbott, B. P. and Abbott, R. and Abbott, T. and 
                         Abernathy, M. R. and Acernese, F. and Ackley, K. and Adams, C. and 
                         Adams, T. and Adams, T. and Addesso, P. and Adhikari, R. X. and 
                         Adya, V. and Affeldt, C. and Agathos, M. and Agatsuma, K. and 
                         Aggarwal, N. and Aguiar, Odylio Denys de and Ain, A. and Ajith, P. 
                         and Alemic, A. and Allen, B. and Allocca, A. and Amariutei, D. and 
                         Anderson, S. B. and Anderson, W. G. and Arai, K. and Araya, M. C. 
                         and Arceneaux, C. and Areeda, J. S. and Ashton, G. and Ast, S. and 
                         Aston, S. M. and Astone, P. and Aufmuth, P. and Aulbert, C. and 
                         Aylott, B. E. and Babak, S. and Baker, P. T. and Baldaccini, F. 
                         and Ballardin, G. and Ballmer, S. W. and Barayoga, J. C. and 
                         Barbet, M. and Barclay, S. and Barish, B. C. and Barker, D. and 
                         Barone, F. and Barr, B. and Barsotti, L. and Barsuglia, M. and 
                         Barlett, J. and Barton, M. A. and Bartos, I. and Bassiri, R. and 
                         Basti, A. and Batch, J. C. and Bauer, T. S. and Baune, C. and 
                         Bavigadda, V. and Behnke, B. and Bejger, M. and Belczynski, C. and 
                         Bell, A. S. and Bell, C. and Benacquista, M. and Bergam, J. and 
                         Bergamm, G. and Berry, C. P. L. and Bersanetti, D. and Bertolini, 
                         A. and Betzwieser, J. and Bhagwat, S. and Bhandare, R. and 
                         Bilenko, I. A. and Billingsley, G. and Birch, J. and Biscans, S. 
                         and Bitossi, M. and Biwer, C. and Bizouard, M. A. and Blackburn, 
                         J. K. and Blackburn, L. and Blair, C. D. and Blair, D. and 
                         Bloemen, S. and Bock, O. and Bodiya, T. P. and Boer, M. and 
                         Bogaert, G. and Bojtos, P. and Bond, C. and Bondu, F. and Bonelli, 
                         L. and Bonnand, R. and Bork, R. and Born, M. and Boschi, V. and 
                         Bose, S. and Bradaschia, C.",
          affiliation = "{California Institute of Technology} and {California Institute of 
                         Technology} and {California Institute of Technology} and 
                         {Louisiana State University} and {California Institute of 
                         Technology} and {Universit{\'a} di Salerno} and {University of 
                         Florida} and {Livingston Observatory} and {Cardiff University} and 
                         {Universit{\'e} de Savoie} and {University of Sannio at 
                         Benevento} and {California Institute of Technology} and {Albert 
                         Einstein Institut} and {Albert Einstein Institut} and Nikhef and 
                         Nikhef and {Massachusetts Institute of Technology} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Inter-University 
                         Centre for Astronomy and Astrophysics} and {International Centre 
                         for Theoretical Sciences} and {Syracuse University} and {Albert 
                         Einstein Institut} and {Universit{\'a} di Siena} and {University 
                         of Florida} and {California Institute of Technology} and 
                         {University of Wisconsin} and {California Institute of Technology} 
                         and {California Institute of Technology} and {University of 
                         Mississippi} and {California State University} and {University of 
                         Southampton} and {Leibniz Universit{\"a}t Hannover} and 
                         {Livingston Observatory} and INFN and {Leibniz Universit{\"a}t 
                         Hannover} and {Albert Einstein Institut} and {University of 
                         Birmingham} and {Albert Einstein Institut} and {Montana State 
                         University} and {Universit{\`a} di Perugia} and {European 
                         Gravitational Observatory} and {Syracuse University} and 
                         {California Institute of Technology} and {University of Florida} 
                         and {University of Glasgow} and {California Institute of 
                         Technology} and {Handford Observatory} and {Universit{\`a} di 
                         Salerno} and {Hanford Observatory} and {Massachusetts Institute of 
                         Technology} and {Universit{\`e} Paris} and {Handford Observatory} 
                         and {Handford Observatory} and {Columbia University} and 
                         {Standford University} and {Universit{\`a} di Pisa} and {Handford 
                         Observatory} and Nikhef and {Albert Einstein Institut} and 
                         {European Gravitationa Observatory} and {Albert Einstein Institue} 
                         and CAMK-PAN and {Astronomical Observatory Warsaw University} and 
                         {University of Glasgow} and {University of Glasgow} and 
                         {University of Texas} and {Hanford Observatory} and {Albert 
                         Einstein Institut} and {University of Birmingham} and 
                         {Universit{\`a} degli Studi di Genova} and Nikhef and {Livingston 
                         Observatory} and {Syracuse University} and RRCAT and {Lomonosov 
                         Moscow State University} and {California Institute of Technology} 
                         and {Livingston Observatory} and {Massachysetts Institute of 
                         Technology} and {European Gravitational Observatory} and {Syracuse 
                         University} and {Universit{\`e} Paris Sud} and {California 
                         Institute of Technology} and NASA and {University of Western 
                         Australia} and {University of Western Australia} and Nikhef and 
                         {Albert Einstein Institut} and {Massachusetts Institute of 
                         Technology} and {Radboud University Nijmegen} and {Radboud 
                         University Nijmegen} and MTA and {University of Birmingham} and 
                         {Universit{\'e} de Rennes} and {Universit{\'a} di Pisa} and 
                         {Universit{\'e} de Savoie} and {California Institute of 
                         Technology} and {Albert Einstein Intitut} and INFN and 
                         {Inter-University Centre for Astronomy and Astrophysics} and 
                         INFN",
                title = "Narrow-band search of continuous gravitational-wave signals from 
                         Crab and Vela pulsars in Virgo VSR4 data",
              journal = "Physical Review D",
                 year = "2015",
               volume = "91",
               number = "2",
             keywords = "Spin-down limit, wind tori, emission, stars.",
             abstract = "In this paper we present the results of a coherent narrow-band 
                         search for continuous gravitational-wave signals from the Crab and 
                         Vela pulsars conducted on Virgo VSR4 data. In order to take into 
                         account a possible small mismatch between the gravitational-wave 
                         frequency and two times the star rotation frequency, inferred from 
                         measurement of the electromagnetic pulse rate, a range of 0.02 Hz 
                         around two times the star rotational frequency has been searched 
                         for both the pulsars. No evidence for a signal has been found and 
                         95% confidence level upper limits have been computed assuming both 
                         that polarization parameters are completely unknown and that they 
                         are known with some uncertainty, as derived from x-ray 
                         observations of the pulsar wind torii. For Vela the upper limits 
                         are comparable to the spin-down limit, computed assuming that all 
                         the observed spin-down is due to the emission of gravitational 
                         waves. For Crab the upper limits are about a factor of 2 below the 
                         spin-down limit, and represent a significant improvement with 
                         respect to past analysis. This is the first time the spin-down 
                         limit is significantly overcome in a narrow-band search.",
                  doi = "10.1103/PhysRevD.91.022004",
                  url = "http://dx.doi.org/10.1103/PhysRevD.91.022004",
                 issn = "1550-2368 and 1550-7998",
             language = "en",
        urlaccessdate = "23 nov. 2020"
}


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