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Gravitational wave burst search in the Virgo C7 data

F. Acernese M. Alshourbagy F. Antonucci S. Aoudia 1 K. G. Arun 2 P. Astone G. Ballardin F. Barone L. Barsotti M. Barsuglia 3 Th. S. Bauer S. Bigotta S. Birindelli 1 M.-A. Bizouard 2 C. Boccara François Bondu 1 L. Bonelli L. Bosi S. Braccini C. Bradaschia A. Brillet 1 V. Brisson 2 H. J. Bulten D. Buskulic 4 G. Cagnoli E. Calloni E. Campagna B. Canuel F. Carbognani L. Carbone F. Cavalier 2 R. Cavalieri G. Cella E. Cesarini E. Chassande-Mottin 5 S. Chatterji N. Christensen A.-C. Clapson 2 F. Cleva 1 E. Coccia M. Colombini C. Corda A. Corsi F. Cottone J.-P. Coulon 1 E. Cuoco S. d'Antonio A. Dari V. Dattilo M. Davier 2 R. de Rosa M. del Prete L. Di Fiore A. Di Lieto M. Di Paolo Emilio A. Di.Virgilio V. Fafone I. Ferrante F. Fidecaro I. Fiori R. Flaminio 6 J.-D. Fournier 1 S. Frasca F. Frasconi L. Gammaitoni F. Garufi E. Genin A. Gennai A. Giazotto M. Granata 7 V. Granata 4 C. Greverie 1 G. Guidi H. Heitmann 1 P. Hello 2 S. Hild 2 D. Huet P. La. Penna M. Laval 1 N. Leroy 2 N. Letendre 4 M. Lorenzini V. Loriette G. Losurdo J.-M. Mackowski 6 E. Majorana N. Man 1 M. Mantovani F. Marchesoni F. Marion 4 J. Marque F. Martelli A. Masserot 4 F. Menzinger Christine Michel 6 L. Milano Y. Minenkov Subhabrata Mitra 1 Julien Moreau N. Morgado 6 M. Mohan A. Morgia S. Mosca B. Mours 4 I. Neri F. Nocera G. Pagliaroli C. Palomba F. Paoletti S. Pardi A. Pasqualetti R. Passaquieti D. Passuello G. Persichetti F. Piergiovanni L. Pinard 6 R. Poggiani M. Punturo P. Puppo O. Rabaste 7 P. Rapagnani T. Regimbau F. Ricci A. Rocchi L. Rolland 4 R. Romano P. Ruggi B. Sassolas 6 D. Sentenac B. L. Swinkels R. Terenzi A. Toncelli M. Tonelli E. Tournefier 4 F. Travasso G. Vajente J. F. J. van Den.Brand S. van der Putten D. Verkindt 4 F. Vetrano A. Vicere J.-Y. Vinet 1 H. Vocca M. Was 2 M. Yvert 4
Abstract : A search for gravitational wave burst events has been performed with the Virgo C7 commissioning run data that have been acquired in September 2005 over 5 days. It focused on unmodeled short duration signals in the frequency range 150 Hz to 2 kHz. A search aimed at detecting the GW emission from the merger and ring-down phases of binary black hole coalescences was also carried out. An extensive understanding of the data was required to be able to handle a burst search using the output of only one detector. A 90% confidence level upper limit on the number of expected events given the Virgo C7 sensitivity curve has been derived as a function of the signal strength, for unmodeled gravitational wave searches. The sensitivity of the analysis presented is, in terms of the root sum square strain amplitude, h_rss sime 10−20 Hz−1/2. This can be interpreted in terms of a frequentist upper limit on the rate {\cal{R}}_{90\%} of detectable gravitational wave bursts at the level of 1.1 events per day at a 90% confidence level. From the binary black hole search, we obtained the distance reach at 50% and 90% efficiency as a function of the total mass of the final black hole. The maximal detection distance for non-spinning high and equal mass black hole binary system obtained by this analysis in C7 data is sime2.9 ± 0.1 Mpc for a detection efficiency of 50% for a binary of total mass 80 Modot.
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F. Acernese, M. Alshourbagy, F. Antonucci, S. Aoudia, K. G. Arun, et al.. Gravitational wave burst search in the Virgo C7 data. Classical and Quantum Gravity, IOP Publishing, 2009, 26, pp.085009. ⟨10.1088/0264-9381/26/8/085009⟩. ⟨in2p3-00373791⟩



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