Paper abstract bibtex

This 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 $\sim$[-20,1.1]$\times$10\^ (-10) Hz s\^ (-1) for the fifth LIGO science run (S5). The search uses a noncoherent Hough-transform method to combine the information from coherent searches on time scales of about one day. Because these searches are very computationally intensive, they have been carried out with the Einstein@Home volunteer distributed computing project. Postprocessing identifies eight candidate signals; deeper follow-up studies rule them out. Hence, since no gravitational wave signals have been found, we report upper limits on the intrinsic gravitational wave strain amplitude h_0. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h_0 greater than 7.6$\times$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.

@article{caltechauthors37637, volume = {87}, number = {4}, month = {February}, author = {J. Aasi and J. Abadie and B. P. Abbott and R. Abbott and Rana X. Adhikari and P. Ajith and S. B. Anderson and K. Arai and M. C. Araya and J. C. B. Barayoga and G. Billingsley and E. Black and J. K. Blackburn and R. Bork and A. F. Brooks and C. Cepeda and T. Chalermsongsak and A. Corsi and D. C. Coyne and B. Daudert and V. Dergachev and S. Doravari and J. C. Driggers and P. Ehrens and R. Engel and T. Etzel and N. Fotopoulos and E. K. Gustafson and C. Hanna and J. Heefner and A. Heptonstall and K. A. Hodge and A. Ivanov and M. Jacobson and E. James and P. Kalmus and W. Kells and D. G. Keppel and P. J. King and V. Kondrashov and W. Z. Korth and D. Kozak and A. Lazzarini and P. E. Lindquist and V. Litvine and M. Mageswaran and K. Mailand and E. Maros and J. N. Marx and G. McIntyre and S. Meshkov and T. Nash and G. H. Ogin and C. Osthelder and M. Pedraza and M. Phelps and C. Poux and L. R. Price and S. Privitera and D. H. Reitze and N. A. Robertson and J. G. Rollins and V. Sannibale and L. Santamar{\'i}a and F. Seifert and A. Singer and L. Singer and M. R. Smith and A. Stochino and R. Taylor and C. I. Torrie and S. Vass and A. E. Villar and L. Wallace and S. E. Whitcomb and P. A. Willems and R. Williams and H. Yamamoto and D. Yeaton-Massey and L. Zhang and J. Zweizig and Y. Chen and T. Hong and K. Kaufman and H. Miao and C. D. Ott and K. Somiya and K. S. Thorne and L. Wen and H. Yang and R. W. P. Drever and J. Harms and A. Langley and Alan J. Weinstein}, note = {{\copyright} 2013 American Physical Society. Received 17 August 2012; published 13 February 2013. The authors gratefully acknowledge the support of the United States National Science Foundation for the construction and operation of the LIGO Laboratory, the Science and Technology Facilities Council of the United Kingdom, the Max Planck Society, and the State of Niedersachsen/Germany for support of the construction and operation of the GEO600 detector, and the Italian Istituto Nazionale di Fisica Nucleare and the French Centre National de la Recherche Scientifique for the construction and operation of the Virgo detector. The authors also gratefully acknowledge the support of the research by these agencies and by the Einstein@Home volunteers, by the Australian Research Council, the International Science Linkages program of the Commonwealth of Australia, the Council of Scientific and Industrial Research of India, the Istituto Nazionale di Fisica Nucleare of Italy, the Spanish Ministerio de Econom{\'i}a y Competitividad, the Conselleria d?Economia Hisenda i Innovaci? of the Govern de les Illes Balears, the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, the Polish Ministry of Science and Higher Education, the FOCUS Programme of Foundation for Polish Science, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, The National Aeronautics and Space Administration, the Carnegie Trust, the Leverhulme Trust, the David and Lucile Packard Foundation, the Research Corporation, and the Alfred P. Sloan Foundation. This document has been assigned LIGO Laboratory Document No. LIGO-P1200026. }, title = {Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data}, publisher = {American Physical Society}, year = {2013}, journal = {Physical Review D}, pages = {Art. No. 042001}, url = {http://resolver.caltech.edu/CaltechAUTHORS:20130327-074611717}, abstract = {This 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 {$\sim$}[-20,1.1]{$\times$}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 h\_0. For example, in the 0.5 Hz-wide band at 152.5 Hz, we can exclude the presence of signals with h\_0 greater than 7.6{$\times$}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.} }

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