IGEC2: A 17-month search for gravitational wave bursts in 2005-2007
| Autor: | L. Taffarello, M. Bassan, G. Cavallari, J. Hanson, A. Rocchi, L. Baggio, Stefano Longo, Antonello Ortolan, R. Terenzi, W. O. Hamilton, G. Giordano, S. Frasca, A. Mion, L. Conti, J. P. Zendri, F.J. Ronga, G. Modestino, Andrea Carlo Marini, Damon Nettles, G. A. Prodi, Riccardo Sturani, Stefano Foffa, Martin P McHugh, G. Pizzella, Michele Maggiore, Arturo Moleti, Francesco Salemi, M. Visco, S. D'Antonio, Giovanni Vittorio Pallottino, P. Miller, Michele Bonaldi, G. Vedovato, M. Bignotto, E. Coccia, W. W. Johnson, J. Weaver, M. Drago, Pierluigi Fortini, P. Bonifazi, M. Di Paolo Emilio, Renato Mezzena, Francesco Marin, P. Zhang, N. Liguori, V. Re, Stefano Vitale, Y. Minenkov, Paolo Falferi, Andrea Vinante, Massimo Cerdonio, S. Poggi, P. Astone, V. Fafone |
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| Přispěvatelé: | Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2010 |
| Předmět: |
coincidenze
Nuclear and High Energy Physics Gravitational wave detectors and experiments Onde Gravitazionali FOS: Physical sciences Astrophysics ddc:500.2 General Relativity and Quantum Cosmology (gr-qc) Particle detector General Relativity and Quantum Cosmology Observatory Coincident Gravitational radiation magnetic fields and other observations fondo Relativity and gravitation Physics AURIGA General Relativity and Cosmology Gravitational wave 95.85.Sz Settore FIS/01 - Fisica Sperimentale Astronomy rivelatori 04.80.Nn LIGO Amplitude Duty cycle [SDU]Sciences of the Universe [physics] Onde Gravitazionali rivelatori coincidenze fondo 95.30.Sf |
| Zdroj: | Physical Review. D, Vol. 82, No 2 (2010) Physical Review D Physical Review D, 2010, 82, ⟨10.1103/PhysRevD.82.022003⟩ Physical review. D, Particles, fields, gravitation, and cosmology 82 (2010): 022003–022011. doi:10.1103/PhysRevD.82.022003 info:cnr-pdr/source/autori:P. Astone, L. Baggio, M. Bassan, M. Bignotto, M. Bonaldi, P. Bonifazi, G. Cavallari, M. Cerdonio, E. Coccia, L. Conti, S. DAntonio, M. di Paolo Emilio, M. Drago, V. Fafone, P. Falferi, S. Foffa, P. Fortini, S. Frasca1, G. Giordano, W.O. Hamilton/titolo:IGEC2: A 17-month search for gravitational wave bursts in 2005-2007/doi:10.1103%2FPhysRevD.82.022003/rivista:Physical review. D, Particles, fields, gravitation, and cosmology/anno:2010/pagina_da:022003/pagina_a:022011/intervallo_pagine:022003–022011/volume:82 |
| ISSN: | 1550-7998 |
| DOI: | 10.48550/arxiv.1002.3515 |
| Popis: | We present here the results of a 515 days long run of the IGEC2 observatory, consisting of the four resonant mass detectors ALLEGRO, AURIGA, EXPLORER and NAUTILUS. The reported results are related to the fourfold observation time from Nov. 6 2005 until Apr. 14 2007, when Allegro ceased its operation. This period overlapped with the first long term observations performed by the LIGO interferometric detectors. The IGEC observations aim at the identification of gravitational wave candidates with high confidence, keeping the false alarm rate at the level of 1 per century, and high duty cycle, namely 57% with all four sites and 94% with at least three sites in simultaneous observation. The network data analysis is based on time coincidence searches over at least three detectors: the four 3-fold searches and the 4-fold one are combined in a logical OR. We exchanged data with the usual blind procedure, by applying a unique confidential time offset to the events in each set of data. The accidental background was investigated by performing sets of 10^8 coincidence analyses per each detector configuration on off-source data, obtained by shifting the time series of each detector. The thresholds of the five searches were tuned so as to control the overall false alarm rate to 1/century. When the confidential time shifts was disclosed, no gravitational wave candidate was found in the on-source data. As an additional output of this search, we make available to other observatories the list of triple coincidence found below search thresholds, corresponding to a false alarm rate of 1/month. Comment: 10 pages, 8 figures Accepted for publication on Phys. Rev. D |
| Databáze: | OpenAIRE |
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