Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data

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dc.contributor.authorMunch, J.
dc.contributor.authorOttaway, D.
dc.contributor.authorVeitch, P.
dc.date.issued2013
dc.description.abstractThis paper presents results of an all-sky search for periodic gravitational waves in the frequency range [50,1 190]  Hz and with frequency derivative range of ∼[-20,1.1]×10⁻¹⁰  Hz s⁻¹ for the fifth LIGO science run (S5). The search uses a noncoherent Hough-transform method to combine the information from coherent searches on time scales of about one day. Because these searches are very computationally intensive, they have been carried out with the Einstein@Home volunteer distributed computing project. Postprocessing identifies eight candidate signals; deeper follow-up studies rule them out. Hence, since no gravitational wave signals have been found, we report upper limits on the intrinsic gravitational wave strain amplitude h₀. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h₀ greater than 7.6×10⁻²⁵ at a 90% confidence level. This search is about a factor 3 more sensitive than the previous Einstein@Home search of early S5 LIGO data.
dc.description.statementofresponsibilityJ. Aasi ... J. Munch ... D. J. Ottaway ... P. J. Veitch ... et al. (The LIGO Scientific Collaboration and the Virgo Collaboration)
dc.identifier.citationPhysical Review D: Particles, Fields, Gravitation and Cosmology, 2013; 87(4):1-29
dc.identifier.doi10.1103/PhysRevD.87.042001
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.orcidOttaway, D. [0000-0001-6794-1591]
dc.identifier.orcidVeitch, P. [0000-0002-2597-435X]
dc.identifier.urihttp://hdl.handle.net/2440/78458
dc.language.isoen
dc.publisherAmerican Physical Soc
dc.relation.grantARC
dc.rightsPublished by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
dc.source.urihttps://doi.org/10.1103/physrevd.87.042001
dc.titleEinstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
dc.typeJournal article
pubs.publication-statusPublished

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