Gravitational wave burst search in the Virgo C7 data

Year: 2009

Authors: Acernese F., Alshourbagy M., Antonucci F., Aoudia S., Arun KG., Aston P., Ballardin G., Barone F., Barsotti L., Barsuglia M., Bauer TS., Bigotta S., Birindelli S., Bizouard MA., Boccara C., Bondu F., Bonelli L., Bosi L., Braccini S., Bradaschia C., Brillet A., Brisson V., Bulten HJ., Buskulic D., Cagnoli G., Calloni E., Campagna E., Canuel B., Carbognani F., Carbone L., Cavalier F., Cavalieri R., Cella G., Cesarini E., Chassande-Mottin E., Chatterji S., Christensen N., Clapson AC., Cleva F., Coccia E., Colombini M., Corda C., Corsi A., Cottone F., Coulon JP., Cuoco E., D’Antonio S., Dari A., Dattilo V., Davier M., De Rosa R., Del Prete M., Di Fiore L., Di Lieto A., Emilio MD., Di Virgilio A., Fafone V., Ferrante I., Fidecaro F., Fiori I., Flaminio R., Fournier JD., Frasca S., Frasconi F., Gammaitoni L., Garufi F., Genin E., Gennai A., Giazotto A., Granata M., Granata V., Greverie C., Guidi G., Heitmann H., Hello P., Hild S., Huet D., La Penna P., Laval M., Leroy N., Letendre N., Lorenzini M., Loriette V., Losurdo G., Mackowski JM., Majorana E., Man N., Mantovani M., Marchesoni F., Marion F., Marque J., Martelli F., Masserot A., Menzinger F., Michel C., Milano L., Minenkov Y., Mitra S., Moreau J., Morgado N., Mohan M., Morgia A., Mosca S., Mours B., Neri I., Nocera F., Pagliaroli G., Palomba C., Paoletti F., Pardi S., Pasqualetti A., Passaquieti R., Passuello D., Persichetti G., Piergiovanni F., Pinard L., Poggiani R., Punturo M., Puppo P., Rabaste O., Rapagnani P., Regimbau T., Ricci F., Rocchi A., Rolland L., Romano R., Ruggi P., Sassolas B., Sentenac D., Swinkels BL., Terenzi R., Toncelli A., Tonelli M., Tournefier E., Travasso F., Vajente G., van den Brand JFJ., van der Putten S., Verkindt D., Vetrano F., Vicery A., Vinet JY., Vocca H., Was M., Yvert M.

Autors Affiliation: Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy; Univ Naples Federico II, I-80126 Naples, Italy; Univ Salerno, I-84084 Salerno, Italy; Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy; Univ Pisa, I-56127 Pisa, Italy; Univ Siena, I-53100 Siena, Italy; Ist Nazl Fis Nucl, Sez Roma, Rome, Italy; Univ Roma La Sapienza, I-00185 Rome, Italy; CNRS, Observ Cote Azur, Dept Artemis, F-06304 Nice, France; Univ Paris Sud, LAL, IN2P3, CNRS, F-91898 Orsay, France; EGO, I-56021 Cascina, Pi, Italy; Univ Paris 07, Observ Paris, APC, CNRS,CEA,DSM,IRFU,UMR7164,INP23, F-75221 Paris 05, France; Natl Inst Subatom Phys, NL-1009 DB Amsterdam, Netherlands; Vrije Univ Amsterdam, NL-1081 HV Amsterdam, Netherlands; ESPCI, CNRS, F-75005 Paris, France; Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy; Univ Perugia, I-6123 Perugia, Italy; Univ Savoie, LAPP, IN2P3, CNRS, F-74941 Annecy Le Vieux, France; Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, Italy; Univ Florence, I-50121 Florence, Italy; Univ Urbino Carlo Bo, I-61029 Urbino, Italy; Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy; Univ Roma Tor Vergata, I-00133 Rome, Italy; IFSI INAF, I-00133 Rome, Italy; Univ Aquila, I-67100 Laquila, Italy; CNRS, Lab Mat Avances LMA, IN2P3, F-69622 Villeurbanne, France; Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England.

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 o n 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) similar or equal to 10(-20) Hz(-1/2). This can be interpreted in terms of a frequentist upper limit on the rate 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 similar or equal to 2.9 +/- 0.1 Mpc for a detection efficiency of 50% for a binary of total mass 80 M-circle dot.

Journal/Review: CLASSICAL AND QUANTUM GRAVITY

Volume: 26 (8)      Pages from: 85009-1  to: 85009-30

KeyWords: Dynamics; Signals; Merger
DOI: 10.1088/0264-9381/26/8/085009

Citations: 18
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