Gravitational waves from known pulsars: results from the initial detector era

Aasi, J. and Abadie, J. and Abbott, B. P. and Abbott, R. and Abbott, T. and Abernathy, M. R. and Accadia, T. and Acernese, F. and Adams, C. and Adams, T. and Adhikari, R. X. and Affeldt, C. and Agathos, M. and Aggarwal, N. and Aguiar, O. D. and Ajith, P. and Allen, B. and Allocca, A. and Ceron, E. Amador and Amariutei, D. and Anderson, R. A. and Anderson, S. B. and Anderson, W. G. and Arai, K. and Araya, M. C. and Arceneaux, C. and Areeda, J. and Ast, S. and Aston, S. M. and Astone, P. and Debreczeni, Gergely and Endrőczi, Gábor and Frei, Zsolt and Gergely, Árpád László and Gondán, László and Nagy-Egri, Máté Ferenc and Rácz, István and Raffai, Péter and Szeifert, Gábor and Vasúth, Mátyás Zsolt (2014) Gravitational waves from known pulsars: results from the initial detector era. ASTROPHYSICAL JOURNAL, 785 (2). ISSN 1538-4357

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Abstract

We present the results of searches for gravitational waves from a large selection of pulsars using datafrom the most recent science runs (S6, VSR2 and VSR4) of the initial generation of interferometricgravitational wave detectors LIGO (Laser Interferometric Gravitational-wave Observatory) and Virgo.We do not see evidence for gravitational wave emission from any of the targeted sources but produce upper limits on the emission amplitude. We highlight the results from seven young pulsars with largespin-down luminosities. We reach within a factor of five of the canonical spin-down limit for all sevenof these, whilst for the Crab and Vela pulsars we further surpass their spin-down limits. We presentnew or updated limits for 172 other pulsars (including both young and millisecond pulsars). Now thatthe detectors are undergoing major upgrades, and, for completeness, we bring together all of the mostup-to-date results from all pulsars searched for during the operations of the first-generation LIGO,Virgo and GEO600 detectors. This gives a total of 195 pulsars including the most recent resultsdescribed in this paper.

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