Author: "M., Varvella" - Searchworks@Jio Institute Digital Library Search Results

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38 results on '"M., Varvella"'

1. First locking of the Virgo central area interferometer with suspension hierarchical control

Author: L. Massonnet, F. Cleva, C. Palomba, L. Pinard, M. A. Bizouard, N. Morgado, F. Frasconi, R. Flaminio, V. Brisson, F. Ricci, Ph. Heusse, D. Enard, A. Viceré, N. Arnaud, Fabrizio Barone, B. Perniola, E. Tournefier, P. Rapagnani, M. Yvert, R. Passaquieti, Enrico Calloni, Ettore Majorana, Frédérique Marion, C. Bradaschia, M. Davier, J.-P. Coulon, P. Puppo, A. Eleuteri, Julien Moreau, H. Heitmann, J.-D. Fournier, G. Cella, R. De Rosa, F. Martelli, A. Di Virgilio, C. N. Man, V. Reita, M. Tonelli, Ruggero Stanga, Fausto Acernese, Lisa Barsotti, Alessandra Toncelli, A. Gennai, J. Y. Vinet, F. Travasso, F. Mornet, F. Fidecaro, E. Cuoco, D. Buskulic, Claude Boccara, A. Masserot, Luisa Bracci, L. Holloway, J.-M. Mackowski, P. Amico, P. La Penna, Leopoldo Milano, Iolanda Ricciardi, I Fiori, E. Chassande-Mottin, Regis Barille, Christian Corda, V. Loriette, M. Punturo, Alban Remillieux, G. Guidi, S. Kreckelberg, P. Hello, E. Campagna, Rosa Poggiani, F. Vetrano, Archana Pai, F. Paoletti, François Bondu, José Pacheco, Thomas Cokelaer, M. Varvella, Giorgio Ivan Russo, L. Brocco, M. Mazzoni, G. Losurdo, K. Qipiani, Luca Gammaitoni, J. Ramonet, S. Frasca, B. Dujardin, G. Calamai, S. Braccini, B. Mours, L. Di Fiore, H. Vocca, D. Verkindt, D. Passuello, M. Barsuglia, V. Dattilo, A. Brillet, O. Veziant, L. Bosi, F. Beauville, Salvatore Solimeno, D. Babusci, F. Cavalier, G Conforto, A. Giazotto, I. Ferrante, F. Moreau, M. Loupias, H. Trinquet, G. Giordano, F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelberg, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, Milano, Leopoldo, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: astrofisica, control systems, gravitational waves detectors, interferometer, interferometri, onde gravitazionali, servo and control equipment, vibration isolation, Gravitational wave detectors and experiments, Interferometers, Control systems, Vibration isolation, Inverted pendulum, law.invention, Optics, law, Astronomical interferometer, Very low frequency, Attenuator (electronics), Physics, business.industry, Michelson interferometer, Astronomy and Astrophysics, Interferometry, Control system, business
Abstract: Operation of the central portion of Virgo as a simple 6 m Michelson interferometer has given the first demonstration of the possibility to control an interferometer suspended from Virgo full scale multistage seismic attenuators using information derived from the interferometer locking signal. A special role in the control is played by the first stage of these suspensions, an inverted pendulum: besides its seismic preisolation action, this stage has positioning dynamics of several mm, and it allows to exert a very low frequency control at the upper level of the suspension using the interferometer fringe signal. The application of this feedback to the top-stage of the suspension allows corrections of drifts, such as tidal ones, at a stage of the suspension where a large dynamic range in displacements is available, without introducing noise at the level of the mirror, resulting in a significant reduction of the lock keeping force applied directly on the mirror at the lowest stage of the attenuator.
Published: 2004

2. The VIRGO large mirrors: a challenge for low loss coatings

Author: The VIRGO Collaboration, F Beauville, D Buskulic, R Flaminio, F Marion, A Masserot, L Massonnet, B Mours, F Moreau, J Ramonet, E Tournefier, D Verkindt, O Veziant, M Yvert, R Barillé, V Dattilo, D Enard, F Frasconi, A Gennai, P La Penna, M Loupias, F Paoletti, L Bracci, G Calamai, E Campagna, G Conforto, E Cuoco, I Fiori, G Guidi, G Losurdo, F Martelli, M Mazzoni, B Perniola, R Stanga, F Vetrano, A Viceré, D Babusci, G Giordano, J-M Mackowski, N Morgado, L Pinard, A Remillieux, F Acernese, F Barone, E Calloni, R De Rosa, L Di Fiore, A Eleuteri, L Milano, K Qipiani, I Ricciardi, G Russo, S Solimeno, M Varvella, F Bondu, A Brillet, E Chassande-Mottin, F Cleva, T Cokelaer, J-P Coulon, B Dujardin, J-D Fournier, H Heitmann, C N Man, F Mornet, J Pacheco, A Pai, H Trinquet, J-Y Vinet, N Arnaud, M Barsuglia, M A Bizouard, V Brisson, F Cavalier, M Davier, P Hello, P Heusse, S Kreckelberg, C Boccara, V Loriette, J Moreau, V Reita, P Amico, L Bosi, L Gammaitoni, M Punturo, F Travasso, H Vocca, L Barsotti, S Braccini, C Bradaschia, G Cella, C Corda, A Di Virgilio, I Ferrante, F Fidecaro, A Giazotto, E Majorana, L Holloway, R Passaquieti, D Passuello, R Poggiani, A Toncelli, M Tonelli, L Brocco, S Frasca, C Palomba, P Puppo, P Rapagnani, F Ricci, F., Beauville, D., Buskulic, R., Flaminio, F., Marion, A., Masserot, L., Massonnet, B., Mour, F., Moreau, J., Ramonet, E., Tournefier, D., Verkindt, O., Veziant, M., Yvert, R., Barillé, V., Dattilo, D., Enard, F., Frasconi, A., Gennai, P., La Penna, M., Loupia, F., Paoletti, L., Bracci, G., Calamai, E., Campagna, G., Conforto, E., Cuoco, I., Fiori, G., Guidi, G., Losurdo, F., Martelli, M., Mazzoni, B., Perniola, R., Stanga, F., Vetrano, A., Viceré, D., Babusci, G., Giordano, J. M., Mackowski, N., Morgado, L., Pinard, A., Remillieux, F., Acernese, F., Barone, Calloni, Enrico, DE ROSA, Rosario, L., Di Fiore, A., Eleuteri, Milano, Leopoldo, K., Qipiani, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, M., Varvella, F., Bondu, A., Brillet, E., Chassande Mottin, F., Cleva, T., Cokelaer, J. P., Coulon, B., Dujardin, J. D., Fournier, H., Heitmann, C. N., Man, F., Mornet, J., Pacheco, A., Pai, H., Trinquet, J. Y., Vinet, N., Arnaud, M., Barsuglia, M. A., Bizouard, V., Brisson, F., Cavalier, M., Davier, P., Hello, P., Heusse, S., Kreckelberg, C., Boccara, V., Loriette, J., Moreau, V., Reita, P., Amico, L., Bosi, L., Gammaitoni, M., Punturo, F., Travasso, H., Vocca, L., Barsotti, S., Braccini, C., Bradaschia, G., Cella, C., Corda, A., Di Virgilio, I., Ferrante, F., Fidecaro, A., Giazotto, E., Majorana, L., Holloway, R., Passaquieti, D., Passuello, R., Poggiani, A., Toncelli, M., Tonelli, L., Brocco, S., Frasca, C., Palomba, P., Puppo, P., Rapagnani, and F., Ricci
Subjects: Wavefront, Physics, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), Interferometers, business.industry, Michelson interferometer, Virgo interferometer, Instrumentation, law.invention, Interferometry, Surface coating, Optics, law, Sputtering, Astronomical interferometer, Absorption (electromagnetic radiation), business
Abstract: Large optical components (diameter 350 mm), having extremely low loss at 1064 nm, are needed for the large-scale Michelson-type interferometer VIRGO. Today, ion beam sputtering is the only deposition technique able to produce optical components having such performances. Consequently, a large ion beam sputtering deposition system was built to coat large optics up to 700 mm in diameter: two large substrates may also be coated at the same time for interferometer arm symmetry problem. The performances of this coater are described in terms of layer uniformity on a large scale (wavefront) and optical losses (absorption and scattering). The VIRGO interferometer needs six main mirrors. The first set was ready in June 2002 and they have been installed on the VIRGO site (Italy). The optical performances of this first set are discussed. The requirements at 1064 nm are all satisfied. Indeed, the absorption level is close to 1 ppm (part per million), the scattering is lower than 5 ppm and the RMS wavefront of these optics is lower than 8 nm on 150 mm in diameter. Finally, some solutions are proposed to further improve these performances, especially the absorption level and the mechanical quality factor Q of the mirrors and the substrate wavefront before coating.
Published: 2004

3. The present status of the VIRGO Central Interferometer*

Author: E. Turri, Giancarlo Cella, D. Passuello, S. Mataguez, C. N. Man, J. Y. Vinet, F. Garufi, F. Fidecaro, R. De Rosa, Fausto Acernese, A. Errico, G. M. Guidi, C. Bradaschia, M. De Rosa, H. Trinquet, Thierry Pradier, Sergio Cavaliere, Ettore Majorana, J. C. Lacotte, O. Veziant, Ruggero Stanga, B. Lagrange, H. Fang, G. Giordano, Fabrizio Barone, A. Eleuteri, C. Girard, G. Gennaro, P. Tourrenc, G. Calamai, Rosa Poggiani, P. Marin, C. Eder, T. Regimbau, R. Chiche, L. Milano, Alban Remillieux, J. P. Scheidecker, D. Verkindt, E. Cuoco, P. Mugnier, L. Fournier, François Bondu, R. Hermel, S. Braccini, P. Rivoirard, S. Cuzon, J. Ramonet, F. Frasconi, M. Taurigna, G. Losurdo, Ketevan Qipiani, Salvatore Solimeno, C. Palomba, L. Di Fiore, A. Giazotto, R. Flaminio, I. Ferrante, M. Iannarelli, R. Passaquieti, D. Babusci, A. Pasqualetti, L. Giacobone, J. M. Teuler, L. Nicolosi, V Dattilo, H. Vocca, F. Martelli, R. Taddei, R. Cavalieri, B. Mansoux, C. Michel, A. Brillet, M. Loupias, F. Cavalier, M. Varvella, R. Sottile, J. M. Innocent, A. Masserot, F. Ricci, Luisa Bracci, O. Lodygenski, F. Richard, J.-P. Coulon, V. Brisson, L. Fabbroni, F. Cleva, R. Bilhaut, M. Barsuglia, J.-D. Fournier, Zhenyu Zhang, L. Holloway, C. Bourgoin, V. Loriette, J. C. Marrucho, F. Vetrano, Samuele Cortese, C. Casciano, F. Chollet, J.-M. Mackowski, L. Massonnet, Ph. Heusse, F. Paoletti, P. N. Y. David, J. L. Montorio, Fabio Marchesoni, P. Hello, A. Di Virgilio, M. Perciballi, M. A. Bizouard, A. Reboux, P. Canitrot, N. Arnaud, D. Dufournaud, Enrico Calloni, P. Puppo, Maurizio Ripepe, D. Boget, P. Rapagnani, J. P. Roger, A. Bozzi, P. La Penna, Claude Boccara, Gianpaolo Evangelista, B. Lieunard, José Pacheco, A. Viceré, Roberto Cecchi, M. Mazzoni, E. Jules, G. Ballardin, M. Dehamme, P. Dominici, D. Buskulic, Luca Gammaitoni, J. Cachenaut, S. Frasca, M. Davier, V. Reita, P. Ganau, P. Amico, P. Popolizio, Thomas Cokelaer, M. Yvert, B. Mours, M. Punturo, M. Mencik, L. Pinard, F. Bellachia, M. Gaspard, Angela Delli Paoli, Ciro Cattuto, C. Arnault, N. Morgado, J. L. Beney, M. Leliboux, H. Heitmann, T. Lomtadze, F. Marion, B. Caron, D. Enard, F., Acernese, P., Amico, N., Arnaud, C., Arnault, D., Babusci, G., Ballardin, F., Barone, M., Barsuglia, F., Bellachia, J. L., Beney, R., Bilhaut, M. A., Bizouard, C., Boccara, D., Boget, F., Bondu, C., Bourgoin, A., Bozzi, L., Bracci, S., Braccini, C., Bradaschia, A., Brillet, V., Brisson, D., Buskulic, J., Cachenaut, G., Calamai, Calloni, Enrico, P., Canitrot, B., Caron, C., Casciano, C., Cattuto, F., Cavalier, S., Cavaliere, R., Cavalieri, R., Cecchi, G., Cella, R., Chiche, F., Chollet, F., Cleva, T., Cokelaer, S., Cortese, J. P., Coulon, E., Cuoco, S., Cuzon, V., Dattilo, P. Y., David, M., Davier, M., DE ROSA, DE ROSA, Rosario, M., Dehamme, L., DI FIORE, A., DI VIRGILIO, P., Dominici, D., Dufournaud, C., Eder, A., Eleuteri, D., Enard, A., Errico, G., Evangelista, L., Fabbroni, H., Fang, I., Ferrante, F., Fidecaro, R., Flaminio, J. D., Fournier, L., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, P., Ganau, Garufi, Fabio, M., Gaspard, G., Gennaro, L., Giacobone, A., Giazotto, G., Giordano, C., Girard, G., Guidi, H., Heitmann, P., Hello, R., Hermel, P., Heusse, L., Holloway, M., Iannarelli, J. M., Innocent, E., Jule, P., LA PENNA, J. C., Lacotte, B., Lagrange, M., Leliboux, B., Lieunard, O., Lodygensky, T., Lomtadze, V., Loriette, G., Losurdo, M., Loupia, J. M., Mackowski, E., Majorana, C. N., Man, B., Mansoux, F., Marchesoni, P., Marin, F., Marion, J. C., Marrucho, F., Martelli, A., Masserot, L., Massonnet, S., Mataguez, M., Mazzoni, M., Mencik, C., Michel, Milano, Leopoldo, J. L., Montorio, N., Morgado, B., Mour, P., Mugnier, L., Nicolosi, J., Pacheco, C., Palomba, F., Paoletti, A., Paoli, A., Pasqualetti, R., Passaquieti, D., Passuello, M., Perciballi, L., Pinard, R., Poggiani, P., Popolizio, T., Pradier, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, A., Reboux, T., Regimbau, V., Reita, A., Remillieux, F., Ricci, F., Richard, M., Ripepe, P., Rivoirard, J. P., Roger, J. P., Scheidecker, Solimeno, Salvatore, R., Sottile, R., Stanga, R., Taddei, M., Taurigna, J. M., Teuler, P., Tourrenc, H., Trinquet, E., Turri, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Vicere, J. Y., Vinet, H., Vocca, M., Yvert, and Z., Zhang
Subjects: Physics, Interferometry, Detection of gravitational waves, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), Debugging, Onde gravitazionali, interferometri, astrofisica, media_common.quotation_subject, Detector, Astronomy, Antenna (radio), gravitational wave, media_common
Abstract: The VIRGO Central Interferometer (CITF) is a short suspended interferometer operated with the central area elements of the VIRGO detector. The main motivation behind the CITF is to allow the integration and debugging of a large part of the subsystems of VIRGO while the construction of the long arms of the antenna is being completed. This will permit a faster commissioning of the full-size antenna. In fact, almost all the main components of the CITF, with the exception of the large mirrors and a few other details, are the same as those to be used for the full-size detector. In this paper the present status of the VIRGO CITF is reported.
Published: 2002

4. Search for gravitational-wave bursts in LIGO data from the fourth science run

Author: Pamela J. Russell, Roger K. Route, K. A. Thorne, J. Betzwieser, D. Ugolini, Stefan Hild, D. B. Kozak, David Jones, C. Vorvick, F. Ya. Khalili, Atsushi J. Nishizawa, Erika D'Ambrosio, Peter R. Saulson, V. Kondrashov, Roman Schnabel, R. Abbott, R. DeSalvo, J. E. Brau, Subhasish Mitra, H. Bantilan, Nicolás Yunes, M. A. Barton, Vincenzo Matta, Benno Willke, J. Clark, Pankaj Sarin, D. Meyers, L. Ruet, S. Gossler, D.B. DeBra, P. J. Sutton, K. Y. Franzen, A. L. Stuver, T. Demma, A. M. Rogan, Giuseppe Castaldi, P. Schwinberg, I. Gholami, Albrecht Rüdiger, Alessandra Buonanno, J. A. Sidles, E. E. Doomes, Fabio Postiglione, Martin P McHugh, B. J. J. Slagmolen, C. Messenger, S. Saraf, P. J. Veitch, J. Bogenstahl, L. Ribichini, Roberto Conte, E. Maros, P. Shawhan, W. G. Anderson, E. Innerhofer, Walter Winkler, Harald Lück, P. Charlton, L. Sancho De La Jordana, I. Wilmut, S. C. McGuire, Michael E Zucker, Massimo Tinto, A. Di Credico, L. Matone, R. L. Ward, Laura Cadonati, J. S. Kissel, B. P. Abbott, C. Aulbert, Ping Koy Lam, Shantanu Desai, Kip S. Thorne, Keisuke Goda, I. A. Bilenko, V. Dergachev, David J. Ottaway, Roger Jones, V. Leonhardt, J. C. Dumas, E. Chin, K. Rawlins, M. Guenther, M. Degree, A. Moylan, J. H. Romie, A. Sibley, S. Vass, Albert Lazzarini, K. Bayer, Erik Katsavounidis, Susan M. Scott, Teviet Creighton, M. J. Lubinski, D. Jackrel, Chad Hanna, F. J. Raab, B. Bland, K. Kawabe, Marco Aurelio Diaz, S. M. Aston, W. Kells, M. R. Smith, S. Wen, D. Busby, X. Siemens, V. P. Mitrofanov, John G. Dwyer, R. Gustafson, B. Rivera, Pablo Barriga, Daniel C. Woods, Vladimir B. Braginsky, H. Vahlbruch, K. Riles, M. A. Arain, T. Etzel, M. Mageswaran, S. Giampanis, John Worden, Boris Hage, S. H. Huttner, Gregory M. Harry, M. C. Araya, M. Lei, E. Espinoza, M. Weinert, David H. Shoemaker, C. Torres, A. Rodriguez, C. Barker, Andreas Freise, Vincenzo Pierro, K. Kokeyama, P. G. Murray, Holger J. Pletsch, C. Wilkinson, C. Zhao, Alicia M. Sintes, M. Ramsunder, E. Hirose, Juri Agresti, A. Dietz, Badri Krishnan, E. Chalkey, Matthew Pitkin, M. Varvella, R. Wooley, J. Heefner, R. Grosso, Stephen Fairhurst, J. Zweizig, Antony C. Searle, R. P. Croce, D. J. Hosken, C. M. Mow-Lowry, J. G. Rollins, Yousuke Itoh, Marco G. Tarallo, I. W. Martin, B. Johnson, J. H. Hough, D. Kasprzyk, Frank Seifert, D. Hoyland, Virginio Sannibale, David E. McClelland, M. Samidi, T. Hayler, Peter Fritschel, J. Dickson, C. I. Torrie, Jan Harms, A. S. Sengupta, A. J. Weinstein, W. Wu, P. T. Beyersdorf, V. Boschi, K. C. Cannon, J. Slutsky, C. Van Den Broeck, Kris Ryan, D. Webber, J. Greenhalgh, S. Wise, I. Yakushin, Helge Müller-Ebhardt, Michele Vallisneri, S. E. Whitcomb, S. Grunewald, K. Mailand, Maurizio Longo, Krzysztof Belczynski, Douglas R. Cook, R. Mittleman, Ravi Kumar Kopparapu, Soumya D. Mohanty, Rana X. Adhikari, C. Gray, M. Ito, A. M. Cruise, Ik Siong Heng, R.L. Coldwell, Evan Goetz, Gareth Jones, Nelson Christensen, N. Zotov, P. Cochrane, Emma L. Robinson, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, J. R. Smith, R. Bork, G. Traylor, Kentaro Somiya, Michele Zanolin, P. Kwee, A. Grant, B. Machenschalk, C. A. Cantley, K. Mason, Eric Howell, T. Nash, Michael Landry, Sanjeev Dhurandhar, Kenji Numata, L. Zhang, J. Zhang, Vuk Mandic, Thomas Corbitt, S. Sakata, Miquel Trias, Richard O'Shaughnessy, B. Barr, P. Patel, Malik Rakhmanov, S. B. Anderson, Kenneth G. Libbrecht, C. Robinson, Benjamin William Allen, S. Ray-Majumder, Karsten Danzmann, Kirk McKenzie, S. Meshkov, L. Williams, R. L. Savage, H. Ward, Peter King, A. Heptonstall, R. Riesen, Slawomir Gras, Roland Schilling, Stefano Marano, G. Billingsley, C. N. Colacino, M. Malec, H. Rehbein, K. Watts, Oliver Burmeister, Vincenzo Galdi, Francesco Chiadini, D. M. Whitbeck, D. R. Ingram, Phil Willems, Morag M. Casey, M. Heurs, Yi Chen, N. Fotopoulos, R. Rahkola, A. Franzen, A. E. Villar, Alberto Vecchio, Graham Woan, David B. Tanner, D. M. Strom, A. C. Melissinos, V. V. Frolov, Robert L. Byer, V. Parameshwaraiah, Nergis Mavalvala, Stuart Reid, Jerome Degallaix, H. Yamamoto, John Veitch, R. J. Dupuis, Jong H. Chow, B. C. Barish, David Crooks, T. T. Fricke, Lisa M. Goggin, D. Chin, Supriyo Sinha, Stanislav Babak, Bernard F. Schutz, Li Ju, Sascha Schediwy, M. MacInnis, R. S. Amin, A. Cumming, Eugeniy E. Mikhailov, J. Hanson, Duncan A. Brown, Guido Mueller, A. M. Gretarsson, M. Sung, E. Messaritaki, G. Mendell, Sheila Rowan, A. Brooks, P. Ehrens, H. zur Mühlen, N. A. Lockerbie, B. Lantz, Carlos Cepeda, Robert J. McCarthy, J. A. Giaime, K. Wette, Timothy Evans, Karel E. Urbanek, Gianpietro Cagnoli, D. Sigg, S. W. Ballmer, R. M. S. Schofield, G. Moreno, M. Fyffe, Gabriela Gonzalez, Benjamin J. Owen, Shuichi Sato, P. Savov, James Whelan, P. Ajith, M. Pedraza, J. Myers, E. Myers, Christopher Wipf, K. V. Tokmakov, Shourov Chatterji, D. Fazi, S. J. Waldman, Suvadeep Bose, Martin Hewitson, Junwei Cao, Maria Alessandra Papa, Malcolm B. Gray, Joseph D. Romano, Jared Markowitz, Vincenzo Fiumara, Fumiko Kawazoe, Kasem Mossavi, Kent Blackburn, J. Thacker, Soma Mukherjee, Drew Keppel, Zewu Yan, R. Taylor, N. A. Robertson, G. Diederichs, Helena Armandula, Andre Thüring, Ke-Xun Sun, D. Hammer, Michael C. B. Ashley, Peter Kalmus, Carlo Ungarelli, Jason S. Pelc, I. Leonor, John K. Cannizzo, K. D. Giardina, J. W C McNabb, Jordan Camp, T. Meier, J. Dalrymple, G. Newton, B. Lee, Matthew Evans, L. Cardenas, M. V. Plissi, Hartmut Grote, S. Klimenko, D. Barker, P. E. Lindquist, Peter Aufmuth, M. Lormand, S. Roddy, B. Bhawal, J. N. Marx, A. Bullington, Rahul Biswas, Lee Samuel Finn, L. Bogue, Sean T. McWilliams, J. Garofoli, Shuhei Yoshida, B. F. Whiting, H. Overmier, L. Wallace, R. Frey, D. Sellers, Simon Chelkowski, A. G. Wiseman, D. C. Coyne, D. Hoak, Patrick Brady, T. Z. Summerscales, Hirotaka Takahashi, Gavin Davies, B. Sears, Guenakh Mitselmakher, Vicky Kalogera, A. Bunkowski, Jonathan C. Leiner, S. Márka, V. Re, Yaohui Fan, Kenneth A. Strain, A. Weidner, Innocenzo M. Pinto, Thomas Cokelaer, Rainer Weiss, R. W. P. Drever, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, W. W. Johnson, Osamu Miyakawa, David H. Reitze, B. O'Reilly, N. Rainer, David Blair, Yi Pan, Jolien D. E. Creighton, Lindy Blackburn, Chunglee Kim, V. Sandberg, D. S. Rabeling, R. A. Mercer, Jesper Munch, A. Ivanov, H. Radkins, Damien Mudge, S. P. Vyachanin, M. Brinkmann, W. Tyler, David Coward, S. Penn, LSC Collaboration, The, Castaldi, G., Galdi, V., Pierro, V., and Pinto, I. M.
Subjects: Physics, Physics and Astronomy (miscellaneous), Gravitational wave, Monte Carlo method, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), LIGO, General Relativity and Quantum Cosmology, Black hole, QC350, Amplitude, Binary black hole, NAUTILUS, EXPLORER, Waveform, Noise (radio), QC
Abstract: The fourth science run of the LIGO and GEO 600 gravitational-wave detectors, carried out in early 2005, collected data with significantly lower noise than previous science runs. We report on a search for short-duration gravitational-wave bursts with arbitrary waveform in the 64-1600 Hz frequency range appearing in all three LIGO interferometers. Signal consistency tests, data quality cuts, and auxiliary-channel vetoes are applied to reduce the rate of spurious triggers. No gravitational-wave signals are detected in 15.5 days of live observation time; we set a frequentist upper limit of 0.15 per day (at 90% confidence level) on the rate of bursts with large enough amplitudes to be detected reliably. The amplitude sensitivity of the search, characterized using Monte Carlo simulations, is several times better than that of previous searches. We also provide rough estimates of the distances at which representative supernova and binary black hole merger signals could be detected with 50% efficiency by this analysis., Comment: Corrected amplitude sensitivities (7% change on average); 30 pages, submitted to Classical and Quantum Gravity
Published: 2007

5. Lock Acquisition Scheme For The Advanced LIGO Optical configuration

Author: Shihori Sakata, Alexander Ivanov, Matthew Evans, Robert Taylor, Michael Smith, S. Vass, Rana X. Adhikari, M. Varvella, B. P. Abbott, Fumiko Kawazoe, D. Busby, Seiji Kawamura, R. Bork, Osamu Miyakawa, J. Heefner, R. L. Ward, Alan J. Weinstein, and Hartmut Grote
Subjects: Physics, History, Offset (computer science), Sideband, Gravitational wave, business.industry, Particle detector, LIGO, Computer Science Applications, Education, Interferometry, Optics, Astronomical interferometer, Common-mode signal, business, Caltech Library Services
Abstract: The lock acquisition scheme for the Advanced LIGO optical configuration, which makes use of "resonant sideband extraction", is under investigation in the 40 meter prototype interferometer at Caltech. The 40m has a similar optical configuration to the one planned for Advanced LIGO which has 5 degrees of freedom for length control. So far we have succeeded in locking the 5 degrees of freedom routinely. The differential mode of arm cavities was locked in the same state as the final setup, and the peak of optical resonance was verified to be around 4 kHz. Currently, since an offset remains in the common mode of the arm cavities, another optical resonance can be seen in common mode optical gain.
Published: 2006

6. Data analysis methods for non-Gaussian, nonstationary and nonlinear features and their application to VIRGO

Author: N. Morgado, D. Enard, M. Yvert, F. Travasso, P. Amico, P. La Penna, Thomas Cokelaer, Frédérique Marion, F. Richard, Elena Cuoco, Fabio Marchesoni, P. Hello, G. Ballardin, R. Hermel, F. Nenci, C. Boccara, D. Verkindt, C. Casciano, Regis Barille, F. Mornet, F. Paoletti, J. L. Montorio, R. Taddei, M. A. Bizouard, F. Martelli, S Peruzzi, Gianpaolo Evangelista, B. Lieunard, R. Passaquieti, J. M. Teuler, L. Pinard, F. Frasconi, R. Flaminio, D. Passuello, J. P. Roger, E. Turri, C. Michel, F. Bellachia, D. Forest, B. Mours, M. Leliboux, R. Cavalieri, F. Honglie, Angela Delli Paoli, Ciro Cattuto, E. Tournefier, Leopoldo Milano, J. Cachenaut, P. Ganau, H. Heitmann, P. Dominici, Irene Fiori, J. Moreau, V. Brisson, M. Davier, V. Reita, S. Krecklbergh, J.-P. Coulon, L. Holloway, Samuele Cortese, Ph. Heusse, A. Di Virgilio, N. Arnaud, J.-D. Fournier, P. Rapagnani, S Puccinelli, A. Brillet, Ruggero Stanga, V Dattilo, B. Perniola, G. Calamai, C. Girard, A. Bozzi, M. Punturo, G Gougoulat, M. De Rosa, G. Gennaro, M. Barsuglia, Rosa Poggiani, H. Trinquet, S. Vilalte, A. Masserot, S. Braccini, Fabrizio Barone, P. Puppo, F. Cleva, G. Losurdo, Sergio Cavaliere, G. Giordano, A. Gennai, B. Dujardin, M. Perciballi, L. Di Fiore, C. Bourgoin, F. Menzinger, L. Massonnet, P. Popolizio, A. Eleuteri, A. Giazotto, I. Ferrante, Alban Remillieux, L. Giacobone, A. Viceré, T. Lomtadze, E. Campagna, A. Pai, C. N. Man, L. Journet, J. Y. Vinet, F. Fidecaro, G. M. Guidi, P. Mugnier, L. Fournier, M. Iannarelli, F. Chollet, J.-M. Mackowski, F. Moreau, M. Loupias, François Bondu, F. Ricci, R. De Rosa, Enrico Calloni, Fausto Acernese, F. Cavalier, C. Bradaschia, Edward K. Porter, V. Loriette, P. Ruggi, José Pacheco, Giorgio Ivan Russo, Ettore Majorana, Luca Gammaitoni, S. Frasca, A. Pasqualetti, Ketevan Qipiani, E. Chassande-Mottin, L Paoli, D. Boget, D. Buskulic, Zhenyu Zhang, L. Brocco, G. Conforto, O. Veziant, B. Lagrange, F. Beauville, Salvatore Solimeno, D. Babusci, F. Vetrano, P. N. Y. David, M. Varvella, C. Palomba, S. Mataguez, G. Cella, M. Mazzoni, J. Ramonet, and H. Vocca
Subjects: Data Analysis, Physics, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), Gaussian, Full scale, Astrophysics, Characterization (materials science), Nonlinear system, Interferometry, symbols.namesake, Data analysis, symbols, Algorithm
Abstract: The commissioning of the VIRGO central interferometer occasioned the implementation and tests of various algorithms for the characterization of the non-Gaussianity, non-stationarity and non-linearity of the dark fringe data. This library of prototypes will serve as groundwork for the near commissioning of VIRGO (full scale). We make a summary of the activities on that subject including the description of the selected algorithms and some results obtained with the data of the engineering runs.
Published: 2003

7. The Virgo interferometric gravitational antenna

Author: D. Tombolato, F. Mornet, D. Verkindt, V. Loriette, Leopoldo Milano, J. Marque, Ettore Majorana, M. A. Bizouard, D. Buskulic, E. Cuoco, M. Mazzoni, F. Beauville, R. Flaminio, S. Kreckelberg, Archana Pai, P. Ruggi, R. De Rosa, B. Perniola, José Pacheco, Sofiane Aoudia, S. Braccini, V. Dattilo, L. Di Fiore, B. Mours, M. Barsuglia, Fausto Acernese, L. Massonnet, M. Mantovani, A. Masserot, V. Brisson, F. Cleva, H. Vocca, Patrice Hello, K. Qipiani, L. Pinard, M. Alshourbagy, P. Puppo, Iolanda Ricciardi, Luca Gammaitoni, F. Cavalier, F. Marion, Andreas Freise, F. Paoletti, A. Brillet, C. Bradaschia, L. Holloway, S. Frasca, Enrico Calloni, Guido Russo, L. Brocco, J-Y. Vinet, A. Viceré, Regis Barille, N. Morgado, J.-M. Mackowski, M. Punturo, G. Ballardin, Christian Corda, A. C. Clapson, A. Di Virgilio, Zefeng Zhou, V. Reita, Alban Remillieux, Saverio Avino, F. Frasconi, A. Pasqualetti, D. Enard, F. Travasso, H. Heitmann, D. Passuello, A. Spallicci, P. Amico, P. La Penna, E. Tournefier, H. Trinquet, G. Losurdo, François Bondu, C. Palomba, M. Varvella, D. Grosjean, G. Giordano, G. Cella, B. Dujardin, C. Boccara, Fabrizio Barone, A. Gennai, S. Hebri, Julien Moreau, F. Martelli, C. N. Man, P. Rapagnani, F. Fidecaro, G. M. Guidi, R. Cavalieri, A. Giazotto, R. Taddei, E. Chassande-Mottin, I. Ferrante, J.-P. Coulon, A. Eleuteri, J.-D. Fournier, F. Moreau, M. Loupias, I. Fiori, M. Yvert, E. Campagna, Silvio Pardi, Lisa Barsotti, Alessandra Toncelli, F. Ricci, R. Passaquieti, C. Moins, Ruggero Stanga, F. Piergiovanni, Rosa Poggiani, M. Davier, M. Tonelli, F. Vetrano, R. Gouaty, L. Bosi, Salvatore Solimeno, D. Babusci, Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux ( ARTEMIS ), Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de la Côte d'Azur, Université Côte d'Azur ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire d'Annecy de Physique des Particules ( LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ) -Centre National de la Recherche Scientifique ( CNRS ), APC - Gravitation ( APC-Gravitation ), AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Max-Planck-Institut-Max-Planck-Institut, Laboratoire des matériaux avancés ( LMA ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), VIRGO, F., Acernese, P., Amico, M., Al Shourbagy, Avino, S. A. o. u. d. i. a., D., Babusci, G., Ballardin, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskuli, Calloni, Enrico, E., Campagna, F., Cavalier, R., Cavalieri, G., Cella, E., Chassande Mottin, A. C., Clapson, F., Cleva, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, A., Freise, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, R., Gouaty, D., Grosjean, G., Guidi, S., Hebri, H., Heitmann, P., Hello, L., Holloway, S., Kreckelberg, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, M., Mantovani, F., Marion, J., Marque, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, Milano, Leopoldo, C., Moin, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, S., Pardi, A., Pasqualetti, R., Passaquieti, D., Passuello, B., Perniola, F., Piergiovanni, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, P., Ruggi, Russo, Guido, Solimeno, Salvatore, A., Spallicci, R., Stanga, R., Taddei, D., Tombolato, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, A., Viceré, J. Y., Vinet, H., Vocca, M., Yvert, Z., Zhou, Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), APC - Gravitation (APC-Gravitation), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Laboratoire des matériaux avancés (LMA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Gravitational-wave observatory, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Phase (waves), Optical system design, onde gravitazionali, [ PHYS.ASTR.CO ] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 01 natural sciences, law.invention, 010309 optics, Gravitation, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Optics, law, 04.80Nn, 07.60Ly, 07.05Dz, 95.55.Br, 0103 physical sciences, Electrical and Electronic Engineering, ottica, 010306 general physics, Interferometer, [ SDU.ASTR ] Sciences of the Universe [physics]/Astrophysics [astro-ph], Physics, gravitational wave detector, interferometer, interferometri, optical system design, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], business.industry, Gravitational wave, Mechanical Engineering, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Michelson interferometer, Atomic and Molecular Physics, and Optics, Gravitational wave detector, Electronic, Optical and Magnetic Materials, Interferometry, [ SDU.ASTR.CO ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Antenna (radio), business
Abstract: The interferometric gravitational wave detectors represent the ultimate evolution of the classical Michelson interferometer. In order to measure the signal produced by the passage of a gravitational wave, they aim to reach unprecedent sensitivities in measuring the relative displacements of the mirrors. One of them, the 3-km-long Virgo gravitational wave antenna, which will be particularly sensitive in the low-frequency range (10-100 Hz), is presently in its commissioning phase. In this paper the various techniques developed in order to reach its target extreme performance are outlined.
Published: 2007

8. Low-loss coatings for the VIRGO large mirrors

Author: Roland Geyl, Laurent Mazuray, Jean Pierre Chatard, Claude Amra, F. Beauville, D. Buskulic, R. Flaminio, F. Marion, A. Masserot, L. Massonnet, B. Mours, F. Moreau, J. Ramonet, E. Tournefier, D. Verkindt, O. Veziant, M. Yvert, Regis Barille, Vincenzino Dattilo, Daniel Enard, Franco Frasconi, Alberto Gennai, Paolo La Penna, Magali Loupias, Federico Paoletti, L. Bracci, Giovanni Calamai, E. Campagna, G. Conforto, E. Cuoco, I. Fiori, G. Guidi, G. Losurdo, Fabrizio Martelli, Massimo Mazzoni, B. Perniola, Ruagero N. Stanga, Flavio Vetrano, A. Vicere, D. Babusci, Gianfranco Giordano, Jean Marie Mackowski, Nazario Morgado, Laurent Pinard, Alban Remillieux, Fausto Acernese, Fabrizio Barone, Luciano Di Fiore, Antonio Eleuteri, Leopoldo Milano, Ketevan Qipiani, Iolanda Ricciardi, RUSSO, GUIDO, Salvatore Solimeno, M. Varvella, Francois Bondu, Alain Brillet, Eric Chassande Mottin, Frederic Cleva, T. Cokelaer, J. P. Coulon, B. Dujardin, J. D. Fournier, H. Heitmann, Catherine N. Man, F. Mornet, J. Pacheco, A. Pai, Herve Trinquet, J. Y. Vinet, N. Arnaud, M. Barsuglia, M. A. Bizouard, V. Brisson, F. Cavalier, M. Davier, P. Hello, P. Heusse, S. Kreckelberg, A. Claude Boccara, Vincent Loriette, J. Moreau, V. Reita, P. Amico, L. Bosi, Luca Gammaitoni, M. Punturo, F. Travasso, H. Vocca, L. Barsotti, S. Braccini, C. Bradaschia, G. Cella, C. Corda, A. Di Virgilio, I. Ferrante, F. Fidecaro, Adalberto Giazotto, E. Majorana, L. Holloway, R. Passaquieti, D. Passuello, R. Poggiani, A. Toncelli, M. Tonelli, L. Brocco, S. Frasca, C. Palomba, P. Puppo, P. Rapagnani, F. Ricci, David Rimmer, Philip J. Rogers, Norbert Kaiser, Peter N. J. Dennis, Lingli Wang, H. Angus Macleod, Rolf Wartmann, CALLONI, ENRICO, DE ROSA, ROSARIO, Roland, Geyl, Laurent, Mazuray, Jean Pierre, Chatard, Claude, Amra, F., Beauville, D., Buskulic, R., Flaminio, F., Marion, A., Masserot, L., Massonnet, B., Mour, F., Moreau, J., Ramonet, E., Tournefier, D., Verkindt, O., Veziant, M., Yvert, Regis, Barille, Vincenzino, Dattilo, Daniel, Enard, Franco, Frasconi, Alberto, Gennai, Paolo La, Penna, Magali, Loupia, Federico, Paoletti, L., Bracci, Giovanni, Calamai, E., Campagna, G., Conforto, E., Cuoco, I., Fiori, G., Guidi, G., Losurdo, Fabrizio, Martelli, Massimo, Mazzoni, B., Perniola, Ruagero N., Stanga, Flavio, Vetrano, A., Vicere, D., Babusci, Gianfranco, Giordano, Jean Marie, Mackowski, Nazario, Morgado, Laurent, Pinard, Alban, Remillieux, Fausto, Acernese, Fabrizio, Barone, Calloni, Enrico, DE ROSA, Rosario, Luciano Di, Fiore, Antonio, Eleuteri, Leopoldo, Milano, Ketevan, Qipiani, Iolanda, Ricciardi, Russo, Guido, Salvatore, Solimeno, M., Varvella, Francois, Bondu, Alain, Brillet, Eric Chassande, Mottin, Frederic, Cleva, T., Cokelaer, J. P., Coulon, B., Dujardin, J. D., Fournier, H., Heitmann, Catherine N., Man, F., Mornet, J., Pacheco, A., Pai, Herve, Trinquet, J. Y., Vinet, N., Arnaud, M., Barsuglia, M. A., Bizouard, V., Brisson, F., Cavalier, M., Davier, P., Hello, P., Heusse, S., Kreckelberg, A., Claude Boccara, Vincent, Loriette, J., Moreau, V., Reita, P., Amico, L., Bosi, Luca, Gammaitoni, M., Punturo, F., Travasso, H., Vocca, L., Barsotti, S., Braccini, C., Bradaschia, G., Cella, C., Corda, A., Di Virgilio, I., Ferrante, F., Fidecaro, Adalberto, Giazotto, E., Majorana, L., Holloway, R., Passaquieti, D., Passuello, R., Poggiani, A., Toncelli, M., Tonelli, L., Brocco, S., Frasca, C., Palomba, P., Puppo, P., Rapagnani, F., Ricci, David, Rimmer, Philip J., Roger, Norbert, Kaiser, Peter N. J., Denni, Lingli, Wang, H., Angus Macleod, Rolf, Wartmann, Amra, Claude, Beauville, F., Buskulic, D., Flaminio, R., Marion, F., Masserot, A., Massonnet, L., Mours, B., Moreau, F., Ramonet, J., Tournefier, E., Verkindt, D., Veziant, O., Yvert, M., Barillé, R., Dattilo, V., Enard, D., Frasconi, F., Gennai, A., la Penna, P., Loupias, M., Paoletti, F., Bracci, L., Calamai, G., Campagna, E., Conforto, MARIA LETIZIA, Cuoco, E., Fiori, I., Guidi, G., Losurdo, G., Martelli, F., Mazzoni, M., Perniola, B., Stanga, R., Vetrano, F., Viceré, A., Babusci, D., Giordano, G., Mackowski, J. -M., Morgado, N., Pinard, L., Remillieux, A., Acernese, F., Barone, F., Calloni, E., de Rosa, R., di Fiore, L., Eleuteri, A., Milano, L., Qipiani, K., Ricciardi, I., Russo, G., Solimeno, S., Varvella, M., Bondu, F., Brillet, A., Chassande-Mottin, E., Cleva, F., Cokelaer, T., Coulon, J. -P., Dujardin, B., Fournier, J. -D., Heitmann, H., Man, C. N., Mornet, F., Pacheco, J., Pai, A., Trinquet, H., Vinet, J. -Y., Arnaud, N., Barsuglia, M., Bizouard, M. A., Brisson, V., Cavalier, F., Davier, M., Hello, P., Heusse, P., Kreckelberg, S., Boccara, C., Loriette, V., Moreau, J., Reita, V., Amico, P., Bosi, L., Gammaitoni, L., Punturo, M., Travasso, F., Vocca, H., Barsotti, L., Braccini, S., Bradaschia, C., Celia, G., Corda, C., di Virgilio, A., Ferrante, I., Fidecaro, F., Giazotto, A., Majorana, E., Holloway, L., Passaquieti, R., Passuello, D., Poggiani, R., Toncelli, A., Tonelli, M., Brocco, L., Frasca, S., Palomba, C., Puppo, P., Rapagnani, P., Ricci, F., Beauville, F, Buskulic, D, Flaminio, R, Marion, F, Masserot, A, Massonnet, L, Mours, B, Moreau, F, Ramonet, J, Tournefier, E, Verkindt, D, Veziant, O, Yvert, M, Barille, R, Dattilo, V, Enard, D, Frasconi, F, Gennai, A, La Penna, P, Loupias, M, Paoletti, F, Bracci, L, Calamai, G, Campagna, E, Conforto, G, Cuoco, E, Fiori, I, Guidi, G, Losurdo, G, Martelli, F, Mazzoni, M, Perniola, B, Stanga, R, Vetrano, F, Vicere, A, Babusci, D, Giordano, G, Mackowski, Jm, Morgado, N, Pinard, L, Remillieux, A, Acernese, F, Barone, F, Di Fiore, L, Eleuteri, A, Milano, L, Qipiani, K, Ricciardi, I, Solimeno, S, Varvella, M, Bondu, F, Brillet, A, Chassande Mottin, E, Cleva, F, Cokelaer, T, Coulon, Jp, Dujardin, B, Fournier, Jd, Heitmann, H, Man, Cn, Mornet, F, Pacheco, J, Pai, A, Trinquet, H, Vinet, Jy, Arnaud, N, Barsuglia, M, Bizouard, Ma, Brisson, V, Cavalier, F, Davier, M, Hello, P, Heusse, P, Kreckelberg, S, Boccara, C, Loriette, V, Moreau, J, Reita, V, Amico, P, Bosi, L, Gammaitoni, L, Punturo, M, Travasso, F, Vocca, H, Barsotti, L, Braccini, S, Bradaschia, C, Cella, G, Corda, C, Di Virgilio, A, Ferrante, I, Fidecaro, F, Giazotto, A, Majorana, E, Holloway, L, Passaquieti, R, Passuello, D, Poggiani, R, Toncelli, A, Tonelli, M, Brocco, L, Frasca, S, Palomba, C, Puppo, P, and Rapagnani, P
Subjects: Wavefront, Physics, Scattering, business.industry, Electronic, Optical and Magnetic Material, Virgo interferometer, Computer Science Applications1707 Computer Vision and Pattern Recognition, Condensed Matter Physic, Sputter deposition, optics, Applied Mathematic, Interferometry, Optics, Optical coating, Astronomical interferometer, Optical system design, Electrical and Electronic Engineering, business, Absorption (electromagnetic radiation)
Abstract: The goal of the VIRGO program is to build a giant Michelson type interferometer (3 kilometer long arms) to detect gravitational waves. Large optical components (350 mm in diameter), having extremely low loss at 1064 nm, are needed. Today, the Ion beam Sputtering is the only deposition technique able to produce optical components with such performances. Consequently, a large ion beam sputtering deposition system was built to coat large optics up to 700 mm in diameter. The performances of this coater are described in term of layer uniformity on large scale and optical losses (absorption and scattering characterization). The VIRGO interferometer needs six main mirrors. The first set was ready in June 2002 and its installation is in progress on the VIRGO site (Italy). The optical performances of this first set are discussed. The requirements at 1064 nm are all satisfied. Indeed, the absorption level is close to 1 ppm (part per million), the scattering is lower than 5 ppm and the R.M.S. wavefront of these optics is lower than 8 nm on 150 mm in diameter. Finally, some solutions are proposed to further improve these performances, especially the absorption level (lower than 0.1 ppm) and the mechanical quality factor Q of the mirrors (thermal noise reduction).
Published: 2004

9. Status of the Virgo experiment

Author: D. Babusci, A. Di Virgilio, B. Dujardin, F. Cleva, F. Ricci, M. A. Mazzoni, Archana Pai, F. Paoletti, José Pacheco, Enrico Calloni, A. Giazotto, I. Ferrante, O. Veziant, L. Bosi, M. Yvert, Lisa Barsotti, Ettore Majorana, E. Tournefier, J. Ramonet, Alessandra Toncelli, F. Cavalier, J.-P. Coulon, Antonio Eleuteri, Salvatore Solimeno, E. Campagna, L. Pinard, F. Moreau, M. Loupias, J.-D. Fournier, F. Frasconi, R. Flaminio, G.V. Russo, I. Fiori, M. A. Bizouard, H. Trinquet, Luca Gammaitoni, H. Vocca, V. Dattilo, G. Giordano, Julien Moreau, J.-M. Mackowski, A. Remillieux, R. De Rosa, V. Brisson, S. Frasca, Claude Boccara, A. Brillet, H. Heitmann, Ketevan Qipiani, E. Cuoco, L. Brocco, P. Puppo, Rosa Poggiani, A. Masserot, R. Passaquieti, F. Travasso, Luisa Bracci, L. Holloway, F. Mabtelli, S. Kreckelbergh, P. Amico, F. Mornet, P. La Penna, M. Davier, C. Palomba, V. Loriette, B. Mours, M. Punturo, Fabrizio Barone, Leopoldo Milano, G. Cella, M. Varvella, L. Di Fiore, E. Chassande-Mottin, Ruggero Stanga, V. Reita, B. Perniola, Thomas Cokelaer, M. Barsuglia, G. Calamai, Fausto Acernese, N. Morgado, F. Vetrano, D. Enard, D. Verkindt, François Bondu, M. Tonelli, G. Losurdo, C. N. Man, J. Y. Vinet, F. Fidecaro, G. M. Guidi, L. Massonnet, P. Hello, C. Bradaschia, Regis Barille, Christian Corda, D. Passuello, F. Marion, A. Gennai, S. Braccini, F. Beauville, A. Viceré, Ph. Heusse, N. Arnaud, P. Rapagnani, Iolanda Ricciardi, D. Buskulic, F., Beauville, D., Buskulic, R., Flaminio, F., Marion, A., Masserot, L., Massonnet, B., Mour, F., Moreau, J., Ramonet, E., Tournefier, D., Verkindt, O., Veziant, M., Yvert, R., Barillé, V., Dattilo, D., Enard, F., Frasconi, A., Gennai, P., LA PENNA, M., Loupia, F., Paoletti, L., Bracci, G., Calamai, E., Campagna, E., Cuoco, G., Guidi, G., Losurdo, F., Mabtelli, M., Mazzoni, B., Perniola, R., Stanga, F., Vetrano, A., Viceré, D., Babusci, G., Giordano, J. M., Mackowski, N., Morgado, L., Pinard, A., Remillieux, F., Acernese, F., Barone, Calloni, Enrico, DE ROSA, Rosario, L., DI FIORE, A., Eleuteri, L., Milano, K., Qipiani, I., Ricciardi, Russo, Guido, S., Solimeno, M., Varvella, F., Bondu, A., Brillet, E., CHASSANDE MOTTIN, F., Cleva, T., Cokelaer, J. P., Coulon, B., Dujardin, J. D., Fournier, H., Heitmann, C. N., Man, F., Mornet, J., Pacheco, A., Pai, H., Trinquet, J. Y., Vinet, N., Arnaud, M., Barsuglia, M. A., Bizouard, V., Brisson, F., Cavalier, M., Davier, P., Hello, P., Heusse, S., Kreckelbergh, C., Boccara, V., Loriette, J., Moreau, V., Reita, P., Amico, L., Bosi, L., Gammaitoni, M., Punturo, F., Travasso, H., Vocca, L., Barsotti, S., Braccini, C., Bradaschia, G., Cella, C., Corda, A., DI VIRGILIO, I., Ferrante, F., Fidecaro, I., Fiori, A., Giazotto, E., Majorana, L., Holloway, R., Passaquieti, D., Passuello, R., Poggiani, A., Toncelli, M., Tonelli, L., Brocco, S., Frasca, C., Palomba, P., Puppo, P., Rapagnani, and F., Ricci
Published: 2004

10. The last-stage suspension of the mirrors for the gravitational wave antenna Virgo

Author: D. Passuello, L. Di Fiore, F. Cleva, F. Marion, M. Barsuglia, F. Cavalier, N. Morgado, Luisa Bracci, R. De Rosa, D. Enard, Rosa Poggiani, Enrico Calloni, Luca Gammaitoni, Fausto Acernese, O. Veziant, M. A. Bizouard, F. Frasconi, R. Flaminio, J. Ramonet, Antonio Eleuteri, M. Yvert, C. Bradaschia, M. Varvella, S. Frasca, P. Heusse, Claude Boccara, L. Bosi, H. Vocca, Julien Moreau, S. Kreckelbergh, V. Dattilo, G. Losurdo, F. Mornet, G.V. Russo, B. Mours, F. Travasso, V. Brisson, P. Amico, P. La Penna, A. Masserot, R. Passaquieti, F. Vetrano, Salvatore Solimeno, H. Trinquet, G. Cella, M. Punturo, E. Campagna, A. Brillet, G. Giordano, D. Babusci, M. Tonelli, L. Pinard, Thomas Cokelaer, Ruggero Stanga, A. Gennai, D. Buskulic, Leopoldo Milano, L. Holloway, Archana Pai, F. Paoletti, L. Massonnet, E. Tournefier, J.-P. Coulon, J.-D. Fournier, I. Fiori, G. Conforto, H. Heitmann, Fabrizio Barone, G. Calamai, Alban Remillieux, D. Verkindt, B. Perniola, P. Rapagnani, C. N. Man, J. Y. Vinet, F. Fidecaro, G. M. Guidi, Regis Barille, José Pacheco, Christian Corda, Iolanda Ricciardi, Nicolas Arnaud, M. Davier, C. Palomba, F. Ricci, A. Giazotto, I. Ferrante, P. Puppo, F. Moreau, M. Loupias, F. Beauville, A. Viceré, V. Reita, S. Braccini, François Bondu, V. Loriette, B. Dujardin, F. Martelli, Marina Mazzoni, Ettore Majorana, Patrice Hello, L. Brocco, A. Di Virgilio, J.-M. Mackowski, E. Chassande-Mottin, Lisa Barsotti, Alessandra Toncelli, Ketevan Qipiani, E. Cuoco, F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, L., Milano, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, S., Solimeno, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Physics, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), business.industry, Gravitational wave, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Mechanical Suspensions, Interferometry, Optics, Thermal, Sensitivity (control systems), Antenna (radio), optic, business, Suspension (vehicle), Actuator
Abstract: We present the last-stage suspension for the mirrors of the gravitational wave antenna Virgo. We studied some problems encountered during the commissioning of the Virgo central interferometer (CITF) and solved them with the aim of achieving the target sensitivity of the detector in its final configuration. We measured the effect of the holder on the internal motion of the mirror, and the residual nonlinear couplings between the electromagnetic actuators and the metallic parts present on the last-stage suspension. The limits experienced on the Virgo CITF have helped us to define some important modifications to be applied to the last-stage suspension. Moreover, we present the experimental study of west input mirror internal modes after it was dismounted from the Virgo central interferometer. The results were useful to identify, in the data of the engineering run 4 of the CITF, the thermal peaks of such a mirror.
Published: 2004

11. All-sky search for periodic gravitational waves in LIGO S4 data

Author: B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, O. Burmeister, D. Busby, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Díaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. M. Goggin, G. González, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Lück, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Márka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Müller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, T. Nash, G. Newton, A. Nishizawa, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, Y. Pan, M. A. Papa, V. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, M. Ramsunder, K. Rawlins, S. Ray-Majumder, V. Re, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rüdiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thüring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, D. Webber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, C. Zhao, N. Zotov, M. Zucker, H. zur Mühlen, and J. Zweizig
Subjects: Physics, Nuclear and High Energy Physics, Gravitational-wave observatory, Einstein Telescope, 010308 nuclear & particles physics, Gravitational wave, General relativity, Astronomy, Astrophysics, 01 natural sciences, Gravitational-wave astronomy, LIGO, Neutron star, 0103 physical sciences, 010306 general physics, Gravitational redshift
Abstract: An error has been found in the computation of the C parameter defined in Eq. (44), which led to its overestimation by a factor 2(1/4). The correct values for C are 9.2, 9.7, and 9.3 for the multi-interferometer, H1 and L1 analyses, respectively. None of the upper limits presented in the article were affected.
Published: 2009

12. Publisher’s Note: Upper limits on gravitational wave emission from 78 radio pulsars [Phys. Rev. D76, 042001 (2007)]

Author: B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, O. Burmeister, D. Busby, W. E. Butler, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, K. Carter, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Diaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, K. S. Ganezer, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. Goggin, G. Gonzalez, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Luck, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Marka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Muller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, T. Nash, G. Newton, A. Nishizawa, F. Nocera, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, Y. Pan, M. A. Papa, V. Parameshwaraiah, C. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, K. Rawlins, S. Ray-Majumder, V. Re, T. Regimbau, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rudiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, G. H. Sanders, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, A. Sazonov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thuring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. van Putten, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, D. Webber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, S. Wiley, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, C. Zhao, N. Zotov, M. Zucker, H. zur Muhlen, J. Zweizig, M. Kramer, and A. G. Lyne
Subjects: Gravitation, Physics, Nuclear and High Energy Physics, Gravitational-wave observatory, Gravitational wave, Speed of gravity, Astronomy, Astrophysics, Cosmology, LIGO, Gravitational energy, Gravitational redshift
Abstract: This paper was published online on 3 August 2007 with a formatting error in the fifty-first affiliation in the author list.The affiliation should read as ‘‘University of Western Australia, Crawley, WA 6009, Australia.’’ The affiliation has beencorrected as of 4 March 2008. The affiliation is incorrect in the printed version of the journal.
Published: 2008

13. Publisher’s Note: All-sky search for periodic gravitational waves in LIGO S4 data [Phys. Rev. D77, 022001 (2008)]

Author: Roman Schnabel, J. E. Brau, Laurent Ruet, J. Zhang, B. Lantz, Malcolm B. Gray, P. Sarin, B. Sears, Anton B. Ivanov, Vincenzo Fiumara, J. D. E. Creighton, Benno Willke, M. Degree, M. Vallisneri, Fumiko Kawazoe, Alessandra Buonanno, Z. Yan, Vicky Kalogera, R. L. Ward, J. Thacker, Soma Mukherjee, Drew Keppel, M. Rakhmanov, David Jones, Benjamin J. Owen, P. J. Sutton, E. Myers, Christopher Wipf, Phil D. C. King, K. D. Giardina, W. Wu, P. T. Beyersdorf, K. V. Tokmakov, S. Babak, Yaohui Fan, J. H. Romie, K. Bayer, M. Landry, John Worden, D. Busby, Martin Hewitson, E. Innerhofer, A. W. Heptonstall, Peter R. Saulson, Badri Krishnan, Giuseppe Castaldi, I. Yakushin, J. Dickson, Jan Harms, Junwei Cao, R. Abbott, S. E. Whitcomb, Andreas Freise, Vincenzo Pierro, R. Gustafson, Matthew Pitkin, R.L. Coldwell, J. Greenhalgh, D. S. Rabeling, S. Giampanis, Rana X. Adhikari, E. Chalkey, Jacob Slutsky, Gareth Jones, B. Machenschalk, V. Parameshwaraiah, P. G. Murray, A. Di Credico, R. Wooley, T. Hayler, P. K. Lam, D. B. Tanner, C. M. Mow-Lowry, Albrecht Rüdiger, Jordan Camp, T. Meier, J. Dalrymple, A. C. Melissinos, L. Zhang, J. H. Hough, Laura Cadonati, R. A. Mercer, John S. Markowitz, G. Mendell, Douglas R. Cook, J. Zweizig, S. Meshkov, A. S. Sengupta, Michele Zanolin, P. Kwee, Graham Woan, Robert L. Byer, S. Reid, C. Aulbert, J. Garofoli, J. Betzwieser, A. Moylan, A. L. Stuver, Martin P McHugh, B. J. J. Slagmolen, Frank Seifert, D. Hoyland, B. F. Whiting, S. Ballmer, C. Van Den Broeck, Keisuke Goda, A. Dietz, Jesper Munch, L. Bogue, J. Heefner, R. Grosso, John A. Clark, A. Cumming, A. Grant, R. Riesen, H. Overmier, Karel E. Urbanek, V. Leonhardt, S. Wise, Li Ju, S. Grunewald, C. N. Colacino, Kirk McKenzie, J. Hanson, P. Shawhan, M. J. Lubinski, D. Jackrel, John G. Dwyer, M. Ashley, S. J. Waldman, G. P. Newton, M. Fyffe, E. Maros, A. M. Gretarsson, Vladimir B. Braginsky, Gabriela Gonzalez, D. Sellers, E. Goetz, P. Charlton, Guido Mueller, S. Penn, E. Messaritaki, Sheila Rowan, Chad Hanna, A.J. Weinstein, Roger K. Route, Simon Chelkowski, Richard J. K. Taylor, H. Yamamoto, Gianpietro Cagnoli, Roger Jones, D. H. Shoemaker, P. Russell, I. A. Bilenko, Soumya D. Mohanty, Morag M. Casey, David J. Ottaway, J. Bogenstahl, N. Zotov, Michael E Zucker, S. Wen, K. Mason, S. B. Anderson, M. Heurs, H. Vahlbruch, K. Riles, R. P. Croce, N. Fotopoulos, E. Espinoza, M. Weinert, K. Rawlins, I. Wilmut, K. Belczynski, M. Guenther, Stefano Marano, Matthew Evans, Sanjeev Dhurandhar, L. Cardenas, T. D. Creighton, D. Hoak, Patrick Brady, H. zur Mühlen, N. A. Lockerbie, Seiji Kawamura, K. Kawabe, S. M. Aston, B. Rivera, Pablo Barriga, S. Ray-Majumder, Kenneth G. Libbrecht, R. L. Savage, H. Rehbein, J. Myers, G. Diederichs, Ik Siong Heng, Stefan Hild, C. Gray, M. Mageswaran, S. Klimenko, C. Ungarelli, Shourov Chatterji, E. D'Ambrosio, M. Sung, M. Pedraza, P. Cochrane, Suvadeep Bose, Xavier Siemens, Lindy Blackburn, H. Ward, V. V. Frolov, Maria Alessandra Papa, D. Ugolini, Reinhard Prix, Elizabeth Harstad, Emma L. Robinson, S. Márka, M. Lormand, Osamu Miyakawa, Andre Thüring, Ke-Xun Sun, T. Z. Summerscales, Jong H. Chow, J. S. Kissel, David Crooks, Juri Agresti, Vladimir Dergachev, P. Savov, James Whelan, P. Ajith, E. Chin, C. Zhao, Alicia M. Sintes, M. Ramsunder, V. Re, H. Bantilan, V. Sandberg, M. Malec, I. W. Martin, Kentaro Somiya, Carlos Cepeda, Robert J. McCarthy, Yi Chen, Kent Blackburn, N. A. Robertson, M. R. Smith, R. DeSalvo, A. Bullington, Rahul Biswas, Sean T. McWilliams, Kenji Numata, M. A. Barton, John Veitch, D. M. Whitbeck, D. Chin, Supriyo Sinha, D. M. Strom, Marco Aurelio Diaz, Eric Howell, Sascha Schediwy, Shuichi Sato, P. Schwinberg, V. Boschi, M. C. Araya, Kasem Mossavi, T. Demma, Shuhei Yoshida, M. MacInnis, E. Katsavounidis, T. Cokelaer, Duncan A. Brown, Peter Kalmus, Eugeniy E. Mikhailov, D. B. Kozak, C. Vorvick, Peter Fritschel, W. Kells, D.B. DeBra, K. Y. Franzen, J. A. Sidles, G. Billingsley, C. Torres, S. Mitra, A. Rodriguez, K. Watts, Nicolás Yunes, H. Radkins, Damien Mudge, Fabio Postiglione, Jonathan C. Leiner, S. P. Vyachanin, M. Brinkmann, W. Tyler, C. Barker, M. V. Plissi, Vincenzo Galdi, A. E. Villar, K. A. Thorne, K. C. Cannon, Francesco Chiadini, A. Franzen, I. Leonor, John K. Cannizzo, Helge Müller-Ebhardt, Rainer Weiss, R. W. P. Drever, C. A. Cantley, W. W. Johnson, David Coward, A. C. Searle, P. J. Veitch, W. G. Anderson, Holger J. Pletsch, B. P. Abbott, T. Etzel, S. Sakata, N. Rainer, David Blair, Miquel Trias, I. Gholami, Nergis Mavalvala, C. Robinson, Benjamin William Allen, G. Traylor, Thomas Corbitt, S. Vass, Richard O'Shaughnessy, B. Barr, Jerome Degallaix, P. Patel, R. Schofield, Karsten Danzmann, J. W C McNabb, L. Williams, Yousuke Itoh, Bum-Hoon Lee, B. C. Barish, V. Kondrashov, C. I. Torrie, D. R. Ingram, Phil Willems, Roland Schilling, Oliver Burmeister, Marco G. Tarallo, Slawomir Gras, B. Bland, P. Ehrens, E. E. Doomes, B. Johnson, D. Webber, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, Stephen Fairhurst, G. Davies, L. Sancho De La Jordana, D. Kasprzyk, Walter Winkler, M. Samidi, K. Wette, E. Black, Martin M. Fejer, Timothy Evans, Harald Lück, J. R. Smith, R. Bork, T. Nash, S. C. McGuire, F. J. Raab, D. Sigg, S. M. Scott, L. Ribichini, G. Moreno, B. Bhawal, Daniel C. Woods, R. Amin, Shantanu Desai, Kip S. Thorne, V. P. Mitrofanov, Vincenzo Matta, Boris Hage, A. F. Brooks, C. Messenger, C. Wilkinson, K. Mailand, Maurizio Longo, R. Mittleman, Nelson Christensen, M. A. Arain, Gregory M. Harry, M. Lei, Virginio Sannibale, David E. McClelland, Peter Aufmuth, J. N. Marx, Ravi Kumar Kopparapu, A. M. Cruise, Vuk Mandic, J. A. Giaime, R. Rahkola, R. J. Dupuis, Lisa M. Goggin, J. C. Dumas, Albert Lazzarini, Tom Fricke, K. Kokeyama, B. F. Schutz, D. J. Hosken, Hartmut Grote, J. G. Rollins, Chonghoon Kim, Kris Ryan, D. Meyers, P. E. Lindquist, D. H. Reitze, Kenneth A. Strain, A. Weidner, E. Hirose, B. O'Reilly, Yi Pan, D. Barker, Lee Samuel Finn, Joseph D. Romano, Hirotaka Takahashi, Guenakh Mitselmakher, A. Bunkowski, Innocenzo M. Pinto, M. Varvella, D. Hammer, L. Wallace, R. Frey, A. G. Wiseman, D. C. Coyne, F. Ya. Khalili, Atsushi J. Nishizawa, S. Roddy, H. Armandula, S. Gossler, A. M. Rogan, S. Saraf, Roberto Conte, L. Matone, A. Sibley, D. Fazi, S. H. Huttner, M. Ito, and Alberto Vecchio
Subjects: Gravitational constant, Physics, Nuclear and High Energy Physics, Gravitational-wave observatory, Einstein Telescope, Gravitational wave, Speed of gravity, Gravity Probe A, Astrophysics, LIGO, Gravitational redshift
Abstract: This paper was published online on 10 January 2008 with a formatting error in the forty-ninth affiliation in the author list. The affiliation should read as ‘‘University of Western Australia, Crawley, WA 6009, Australia.’’ The affiliation hasbeen corrected as of 29 February 2008. The affiliation is incorrect in the printed version of the journal.
Published: 2008

14. Search for gravitational waves from binary inspirals in S3 and S4 LIGO data

Author: S. Márka, Kenneth A. Strain, B. O'Reilly, Yi Pan, B. Lee, D. Hoak, J. N. Marx, M. Fyffe, M. V. Plissi, Hartmut Grote, P. E. Lindquist, B. Bhawal, R. Bork, Benno Willke, J. Clark, L. Ruet, Soumya D. Mohanty, N. Zotov, Jordan Camp, Alessandra Buonanno, Rana X. Adhikari, J. Zhang, S. H. Huttner, V. Leonhardt, David Jones, Ravi Kumar Kopparapu, J. Bogenstahl, Michael E Zucker, Nicolás Yunes, E. Innerhofer, S. Giampanis, A. Dietz, K. Mason, A. J. Weinstein, I. Gholami, W. Wu, P. T. Beyersdorf, B. Machenschalk, V. Boschi, S. Ray-Majumder, T. Meier, J. Dalrymple, G. Newton, A. M. Cruise, R.L. Coldwell, C. N. Colacino, P. J. Sutton, Chunnong Zhao, David H. Shoemaker, P. Cochrane, M. Degree, N. A. Robertson, S. Chelkowski, R. Grosso, L. Zhang, Peter R. Saulson, O. Burmeister, C. Vorvick, Yi Chen, Roman Schnabel, Vuk Mandic, R. P. Croce, J. Heefner, M. Ito, Subhasish Mitra, D. Hammer, Matthew Evans, F. Seifert, A. Grant, S. Sakata, R. L. Ward, Michael C. B. Ashley, E. Chin, Walter Winkler, Harald Lück, B. Johnson, L. Cardenas, D. Kasprzyk, F. Ya. Khalili, Atsushi J. Nishizawa, A. Weidner, D. Meyers, C. Gray, Miquel Trias, P. Schwinberg, S. C. McGuire, M. Samidi, B. Lantz, Michele Vallisneri, Ik Siong Heng, Richard O'Shaughnessy, B. Barr, A. L. Stuver, Giuseppe Castaldi, P. Patel, Malik Rakhmanov, J. Worden, L. Williams, A. Rüdiger, Emma L. Robinson, A. Ivanov, Peter Kalmus, Marco Aurelio Diaz, J. H. Romie, K. Bayer, H. Zur Mühlen, W. G. Anderson, S. Grunewald, A. M. Rogan, Carlo Ungarelli, H. Yamamoto, N. Fotopoulos, R. Rahkola, Vincenzo Matta, H. Radkins, Damien Mudge, Keisuke Goda, S. Saraf, Gavin Davies, R. Riesen, S. P. Vyachanin, F. J. Raab, P. Shawhan, Andreas Freise, Vincenzo Pierro, Stefano Marano, S. Penn, Pamela J. Russell, Roberto Conte, C. Aulbert, Erik Katsavounidis, B. P. Abbott, Roland Schilling, P. Charlton, M. Brinkmann, W. Tyler, B. Sears, Roger K. Route, Vicky Kalogera, C. A. Cantley, Matthew Pitkin, C. Messenger, M. Mageswaran, A. Bullington, Rahul Biswas, K. A. Thorne, C. Robinson, M. Lormand, L. Matone, S. Wen, D. Jackrel, John G. Dwyer, A. Di Credico, L. Bogue, Sean T. McWilliams, K. S. Ganezer, I. Yakushin, K. Watts, David Coward, Laura Cadonati, K. Kawabe, D. Ugolini, Hirotaka Takahashi, M. Varvella, R. Wooley, Benjamin William Allen, Stefan Hild, V. Parameshwaraiah, Vladimir B. Braginsky, Karsten Danzmann, W. Kells, S. Dhurandhar, L. Ribichini, H. Vahlbruch, K. Riles, E. Espinoza, R. J. Dupuis, R. Gustafson, T. Hayler, S. Vass, H. Bantilan, Yaohui Fan, N. A. Lockerbie, M. Weinert, D. Chin, Supriyo Sinha, A. Sibley, E. Myers, V. Fiumara, Kentaro Somiya, I. A. Bilenko, V. Dergachev, David J. Ottaway, Stanislav Babak, J. C. Dumas, Richard J. Abbott, A. E. Villar, A. Moylan, G. T. Jones, Teviet Creighton, Ping Koy Lam, M. A. Barton, Badri Krishnan, Slawomir Gras, T. Evans, Yousuke Itoh, Duncan A. Brown, R. Desalvo, Chad Hanna, X. Siemens, E. Chalkey, Antony C. Searle, C. M. Mow-Lowry, Erika D'Ambrosio, D. Busby, Kenji Numata, C. Wilkinson, P. Savov, H. Overmier, James Whelan, Guenakh Mitselmakher, Nergis Mavalvala, Jerome Degallaix, K. Kokeyama, John K. Cannizzo, Jonathan C. Leiner, V. Re, P. Ajith, B. C. Barish, V. Kondrashov, B. F. Whiting, D. Coyne, A. M. Gretarsson, K. Y. Franzen, D. Hoyland, J. Zweizig, F. Nocera, Rainer Weiss, D. J. Hosken, Karel E. Urbanek, C. Parameswariah, E. E. Doomes, J. G. Rollins, M. A. Arain, Gregory M. Harry, P. G. Murray, D. Cook, J. A. Sidles, Fabio Postiglione, C. Van Den Broeck, I. Wilmut, S. E. Whitcomb, S. Gossler, Sandra E. Wiley, Gabriela Gonzalez, M. Lei, J. A. Giaime, T. Regimbau, P. Kwee, J. H. Hough, Lindy Blackburn, P. Ehrens, F. Kawazoe, J. Garofoli, J. S. Kissel, M. Malec, L. Sancho De La Jordana, Shantanu Desai, Kip S. Thorne, Chunglee Kim, V. Sandberg, D. R. Ingram, Phil Willems, J. Hanson, R. W.P. Drever, D. Sellers, M. Guenther, P. J. Veitch, D. S. Rabeling, Michele Zanolin, Roger Jones, I. W. Martin, Marco G. Tarallo, D. M. Strom, David Blair, Virginio Sannibale, David E. McClelland, J. Slutsky, D. Webber, R. A. Mercer, K. D. Giardina, Patrick Brady, V. P. Mitrofanov, M. C. Araya, Lisa M. Goggin, Innocenzo M. Pinto, D. Debra, Maurizio Longo, Boris Hage, S. M. Aston, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, J. R. Smith, S. Klimenko, T. Nash, B. Rivera, Pablo Barriga, S. Wise, T. Demma, Thomas Cokelaer, Krzysztof Belczynski, R. Mittleman, Nelson Christensen, A. Sazonov, S. M. Scott, Seiji Kawamura, Jesper Munch, B. Bland, Reinhard Prix, Elizabeth Harstad, Daniel C. Woods, J. W C McNabb, Malcolm B. Gray, Peter Fritschel, K. C. Cannon, M. Lubinski, A. Heptonstall, S. Mukherjee, Jong H. Chow, H. Ward, K. Mailand, Osamu Miyakawa, David H. Reitze, David Crooks, L. Wallace, S. Meshkov, R. Frey, H. J. Pletsch, G. Traylor, D. Kozak, Thomas Corbitt, J. Thacker, Kenneth G. Libbrecht, Kevin M. Carter, Drew Keppel, Zewu Yan, P. J. King, I. Leonor, A. G. Wiseman, H. Rehbein, Pankaj Sarin, S. B. Anderson, Stephen Fairhurst, John Veitch, David B. Tanner, G. Mendell, Sascha Schediwy, William E. Butler, M. Sung, V. V. Frolov, M. MacInnis, Martin P McHugh, B. J. J. Slagmolen, M. Pedraza, M. H. P. M. van Putten, Maria Alessandra Papa, Carlos Cepeda, Kent Blackburn, Shuichi Sato, D. Barker, K. Rawlins, M. Hewitson, T. Etzel, S. Roddy, Joseph D. Romano, Jared Markowitz, Kasem Mossavi, A. M. Sintes, P. Aufmuth, Lee Samuel Finn, Kirk McKenzie, C. Torres, A. Rodriguez, C. Barker, Kevin M. Ryan, Morag M. Casey, M. Heurs, J. Betzwieser, Francesco Chiadini, A. Franzen, A. Thüring, A. C. Melissinos, J. E. Brau, T. Z. Summerscales, R. Taylor, A. Brooks, G. Diederichs, K. Wette, Helena Armandula, D. Sigg, W. W. Johnson, N. Rainer, S. W. Ballmer, E. Hirose, Juri Agresti, H. Müller-Ebhardt, Eric Howell, Michael Landry, R. McCarthy, G. Billingsley, J. D. E. Creighton, R. Amin, R. M. S. Schofield, Benjamin J. Owen, Christopher Wipf, K. V. Tokmakov, Junwei Cao, Sanichiro Yoshida, Graham Woan, Robert L. Byer, E. Maros, Stuart Reid, Ke Sun, Bernard F. Schutz, Li Ju, Guido Mueller, A. Cumming, E. Messaritaki, Sheila Rowan, J. Dickson, C. I. Torrie, Jan Harms, A. S. Sengupta, J. Greenhalgh, G. Moreno, Evan Goetz, Vincenzo Galdi, R. L. Savage, D. M. Whitbeck, T. T. Fricke, Eugeniy E. Mikhailov, A. Bunkowski, M. R. Smith, G. H. Sanders, Alberto Vecchio, A. Lazzarini, Gianpietro Cagnoli, J. Myers, Shourov Chatterji, D. Fazi, S. J. Waldman, Suvadeep Bose, and The LIGO Scientific Collaboration
Subjects: Nuclear and High Energy Physics, Population, FOS: Physical sciences, Primordial black hole, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), General Relativity and Quantum Cosmology, laser-interferometer, QC350, Binary black hole, Binary star, Astrophysics::Solar and Stellar Astrophysics, ddc:530, education, QC, QB, Physics, LASER-INTERFEROMETER, education.field_of_study, Gravitational wave, Astronomy, sensitivity, LIGO, Black hole, radiation, Neutron star, RADIATION, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, Astrophysics::Earth and Planetary Astrophysics, SENSITIVITY
Abstract: We report on a search for gravitational waves from the coalescence of compact binaries during the third and fourth LIGO science runs. The search focused on gravitational waves generated during the inspiral phase of the binary evolution. In our analysis, we considered three categories of compact binary systems, ordered by mass: (i) primordial black hole binaries with masses in the range 0.35 M(sun) < m1, m2 < 1.0 M(sun), (ii) binary neutron stars with masses in the range 1.0 M(sun) < m1, m2 < 3.0 M(sun), and (iii) binary black holes with masses in the range 3.0 M(sun)< m1, m2 < m_(max) with the additional constraint m1+ m2 < m_(max), where m_(max) was set to 40.0 M(sun) and 80.0 M(sun) in the third and fourth science runs, respectively. Although the detectors could probe to distances as far as tens of Mpc, no gravitational-wave signals were identified in the 1364 hours of data we analyzed. Assuming a binary population with a Gaussian distribution around 0.75-0.75 M(sun), 1.4-1.4 M(sun), and 5.0-5.0 M(sun), we derived 90%-confidence upper limit rates of 4.9 yr^(-1) L10^(-1) for primordial black hole binaries, 1.2 yr^(-1) L10^(-1) for binary neutron stars, and 0.5 yr^(-1) L10^(-1) for stellar mass binary black holes, where L10 is 10^(10) times the blue light luminosity of the Sun., 12 pages, 11 figures
Published: 2008

15. Upper limit map of a background of gravitational waves

Author: B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, O. Burmeister, D. Busby, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Diaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. M. Goggin, G. Gonzalez, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Luck, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Marka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Muller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, G. Newton, A. Nishizawa, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, Y. Pan, M. A. Papa, V. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, K. Rawlins, S. Ray-Majumder, V. Re, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rudiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thuring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, D. Webber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, C. Zhao, N. Zotov, M. Zucker, H. zur Muhlen, J. Zweizig, and The LIGO Scientific Collaboration
Subjects: Gravitational constant, Physics, Nuclear and High Energy Physics, Theoretical physics, Gravitational field, Gravitational wave, General relativity, Speed of gravity, Gravity Probe A, Astrophysics, Cosmology, Gravitational redshift
Abstract: This paper was published online on 29 October 2007 with a formatting error in the fiftieth affiliation in the author list. The affiliation should read as ‘‘University of Western Australia, Crawley, WA 6009, Australia.’’ The affiliation has been corrected as of 4 March 2008. The affiliation is incorrect in the printed version of the journal.
Published: 2008

16. First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds

Author: B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, M. Burgamy, O. Burmeister, D. Busby, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Diaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. Goggin, G. Gonzalez, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, W. O. Hamilton, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Luck, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Marka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, B. J. McCaulley, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, P. Miller, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, V. Moody, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Muller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, T. Nash, G. Newton, A. Nishizawa, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, H.-J. Paik, Y. Pan, M. A. Papa, V. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, M. Ramsuder, K. Rawlins, S. Ray-Majumder, V. Re, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rudiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thuring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, J. Weaver, D. Webber, A. Weber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, P. Zhang, C. Zhao, N. Zotov, M. Zucker, H. zur Muhlen, J. Zweizig, The LIGO Scientific Collaboration, and ALLEGRO Collaboration
Subjects: Gravitation, Physics, Nuclear and High Energy Physics, Theoretical physics, Interferometry, Bar (music), Gravitational wave, Cross correlation analysis, LIGO, Cosmology, LIGO Scientific Collaboration
Abstract: This paper was published online on 9 July 2007 with a formatting error in the fiftieth affiliation in the author list. The affiliation should read as ‘‘University of Western Australia, Crawley, WA 6009, Australia.’’ The affiliation has been corrected as of 4 March 2008. The affiliation is incorrect in the printed version of the journal.
Published: 2008

17. All-sky search for periodic gravitational waves in LIGO S4 data

Author: D. Hammer, F. Seifert, Michael C. B. Ashley, Peter Kalmus, Carlo Ungarelli, I. Leonor, H. Rehbein, K. D. Giardina, S. B. Anderson, David B. Tanner, E. Hirose, M. Sung, Juri Agresti, J. W C McNabb, M. Pedraza, Maria Alessandra Papa, Kent Blackburn, Benno Willke, J. Clark, H. Müller-Ebhardt, H. Ward, A. L. Stuver, Eric Howell, Michael Landry, E. Chalkley, L. Ruet, Alessandra Buonanno, G. Billingsley, John Veitch, Sanichiro Yoshida, Graham Woan, Rana X. Adhikari, Sascha Schediwy, B. Machenschalk, Soumya D. Mohanty, Robert L. Byer, Stuart Reid, P. Shawhan, K. Rawlins, P. Charlton, Ke Sun, Bernard F. Schutz, M. MacInnis, R. S. Amin, Andreas Freise, Vincenzo Pierro, A. Di Credico, N. Zotov, E. Innerhofer, S. Giampanis, Matthew Pitkin, K. Mason, M. Varvella, R. Wooley, Sanjeev Dhurandhar, S. Ray-Majumder, Li Ju, I. A. Bilenko, J. Hanson, V. Dergachev, Guido Mueller, David J. Ottaway, T. Hayler, C. N. Colacino, Vincenzo Galdi, Yi Chen, B. Lantz, R. P. Croce, R. L. Ward, M. Degree, J. H. Romie, K. Bayer, F. J. Raab, R. M. S. Schofield, Benjamin J. Owen, Badri Krishnan, Antony C. Searle, R. Gustafson, C. Torres, A. Rodriguez, C. Barker, I. Wilmut, F. Kawazoe, J. Garofoli, Christopher Wipf, C. M. Mow-Lowry, J. Cannizzo, A. Bunkowski, D. Hoyland, Pankaj Sarin, J. S. Kissel, David Jones, C. A. Cantley, K. V. Tokmakov, Martin Hewitson, Junwei Cao, C. Robinson, Benjamin William Allen, Karsten Danzmann, J. Zweizig, Roger Jones, C. Van Den Broeck, J. Bogenstahl, Michael E Zucker, Stefano Marano, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, Peter R. Saulson, K. Kawabe, S. M. Aston, Slawomir Gras, B. Rivera, Pablo Barriga, S. H. Huttner, M. Mageswaran, Jong H. Chow, David Crooks, Osamu Miyakawa, David H. Reitze, Erika D'Ambrosio, J. Dickson, C. I. Torrie, Jan Harms, A. S. Sengupta, V. V. Frolov, Martin P McHugh, V. Parameshwaraiah, A. Dietz, B. J. J. Slagmolen, J. E. Brau, P. G. Murray, E. Chin, J. Greenhalgh, J. H. Hough, M. A. Arain, Evan Goetz, S. Sakata, Miquel Trias, Gregory M. Harry, D. Chin, Supriyo Sinha, Stanislav Babak, E. Maros, R. Taylor, M. Lei, Duncan A. Brown, Douglas R. Cook, B. F. Whiting, Shantanu Desai, R. L. McCarthy, Kip S. Thorne, Marco Aurelio Diaz, G. Diederichs, Michele Zanolin, Richard O'Shaughnessy, B. Barr, P. Patel, Malik Rakhmanov, P. Kwee, V. Kalogera, H. Overmier, N. Fotopoulos, S. Meshkov, A. Cumming, R. Rahkola, J. Worden, L. Williams, A. Rüdiger, D. Sellers, V. P. Mitrofanov, I. W. Martin, Helena Armandula, G. Mendell, M. C. Araya, M. Guenther, Virginio Sannibale, David E. McClelland, Kirk McKenzie, B. Lee, N. Rainer, D. Hoak, R. Riesen, Boris Hage, A. M. Gretarsson, Karel E. Urbanek, Morag M. Casey, M. Heurs, Roland Schilling, Patrick Brady, M. V. Plissi, M. Fyffe, Gabriela Gonzalez, Sheila Rowan, M. Ito, F. Ya. Khalili, Atsushi J. Nishizawa, Kevin M. Ryan, A. Thüring, K. Mailand, Malcolm B. Gray, Gavin Davies, Hartmut Grote, A. C. Melissinos, B. Sears, Gianpietro Cagnoli, Maurizio Longo, T. Z. Summerscales, T. Etzel, J. Betzwieser, Richard J. Abbott, Krzysztof Belczynski, P. E. Lindquist, R. Mittleman, Francesco Chiadini, A. Franzen, A. M. Rogan, A. Brooks, Marco G. Tarallo, P. Ehrens, J. N. Marx, R. J. Dupuis, J. Slutsky, Yaohui Fan, Nelson Christensen, D. Webber, B. Bland, Carlos Cepeda, J. Thacker, Soma Mukherjee, Drew Keppel, J. C. Dumas, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, J. R. Smith, B. Bhawal, S. Saraf, Roberto Conte, C. Aulbert, L. Matone, Zewu Yan, T. Nash, K. Wette, Timothy Evans, Albert Lazzarini, Shuichi Sato, J. Myers, D. Sigg, Shourov Chatterji, H. Yamamoto, Joseph D. Romano, Jared Markowitz, R. Bork, L. Wallace, Kasem Mossavi, S. W. Ballmer, A. Sibley, G. Moreno, K. Kokeyama, R. Frey, D. Fazi, S. J. Waldman, Suvadeep Bose, N. A. Lockerbie, P. J. King, D. J. Hosken, A. G. Wiseman, J. G. Rollins, Jolien D. E. Creighton, Chonghoon Kim, Lindy Blackburn, D. C. Coyne, P. Savov, James Whelan, P. Ajith, L. Zhang, V. Sandberg, D. S. Rabeling, M. R. Smith, Hirotaka Takahashi, S. Márka, Ravi Kumar Kopparapu, R. A. Mercer, Guenakh Mitselmakher, Stephen Fairhurst, Kenneth A. Strain, Vincenzo Matta, A. M. Cruise, Jesper Munch, B. O'Reilly, Innocenzo M. Pinto, Vuk Mandic, D. M. Strom, C. Messenger, A. Ivanov, H. Radkins, Damien Mudge, S. P. Vyachanin, M. Brinkmann, W. Tyler, J. A. Giaime, David Coward, Thomas Cokelaer, D. Barker, S. Roddy, I. Yakushin, S. E. Whitcomb, S. Gossler, A. M. Sintes, Alberto Vecchio, P. Aufmuth, Lee Samuel Finn, Ping Koy Lam, V. Leonhardt, A. J. Weinstein, I. Gholami, W. Wu, P. T. Beyersdorf, V. Boschi, R.L. Coldwell, Giuseppe Castaldi, A. Grant, S. Chelkowski, D. B. Kozak, C. Vorvick, Roman Schnabel, A. Weidner, D. Meyers, P. Schwinberg, K. Watts, H. Zur Mühlen, W. G. Anderson, B. P. Abbott, S. Vass, Jian Zhang, W. Kells, D. Busby, Y. Pan, Subhasish Mitra, A. E. Villar, S. Wen, S. Wise, S. Grunewald, Kenneth G. Libbrecht, R. L. Savage, D. M. Whitbeck, Keisuke Goda, T. T. Fricke, Eugeniy E. Mikhailov, Nergis Mavalvala, Jerome Degallaix, Erik Katsavounidis, Laura Cadonati, B. C. Barish, V. Kondrashov, A. Moylan, Susan M. Scott, Teviet Creighton, Chunnong Zhao, Chad Hanna, M. J. Lubinski, R. DeSalvo, X. Siemens, C. Wilkinson, D. Jackrel, John G. Dwyer, E. E. Doomes, David H. Shoemaker, P. Cochrane, M. Ramsunder, Vladimir B. Braginsky, H. Vahlbruch, T. Demma, L. Sancho De La Jordana, K. Riles, Peter Fritschel, K. C. Cannon, E. Espinoza, M. Weinert, H. J. Pletsch, G. Traylor, Thomas Corbitt, O. Burmeister, A. Heptonstall, M. Malec, D. R. Ingram, Phil Willems, Daniel C. Woods, Yousuke Itoh, J. Heefner, R. Grosso, D. Ugolini, Lisa M. Goggin, M. Lormand, A. Bullington, Rahul Biswas, B. Johnson, D. Kasprzyk, L. Bogue, Sean T. McWilliams, Michele Vallisneri, Ik Siong Heng, Emma L. Robinson, M. Samidi, L. Ribichini, C. Gray, E. Myers, V. Fiumara, Jonathan C. Leiner, V. Re, Kentaro Somiya, Kenji Numata, Rainer Weiss, R. W. P. Drever, W. W. Johnson, David Blair, Jordan Camp, H. Bantilan, M. A. Barton, Walter Winkler, T. Meier, J. Dalrymple, D.B. DeBra, K. Y. Franzen, G. Newton, Fabio Postiglione, Harald Lück, S. C. McGuire, P. J. Veitch, Matthew Evans, L. Cardenas, S. Klimenko, Nicolás Yunes, P. J. Sutton, S. Penn, Pamela J. Russell, Roger K. Route, K. A. Thorne, Stefan Hild, G. T. Jones, N. A. Robertson, LSC Collaboration, The, Castaldi, G., Galdi, V., Pierro, V., and Pinto, I. M.
Subjects: Nuclear and High Energy Physics, Population, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, Noise (electronics), General Relativity and Quantum Cosmology, Particle detector, QC350, Signal-to-noise ratio, 0103 physical sciences, ddc:530, 010306 general physics, education, QC, QB, Physics, education.field_of_study, 010308 nuclear & particles physics, Gravitational wave, Astrophysics (astro-ph), LIGO, Computational physics, Neutron star, StackSlide, Amplitude, Graviational waves, LIGO S4, PowerFlux, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, Hough
Abstract: We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1000 Hz and with the frequency's time derivative in the range -1.0E-8 Hz/s to zero. Data from the fourth LIGO science run (S4) have been used in this search. Three different semi-coherent methods of transforming and summing strain power from Short Fourier Transforms (SFTs) of the calibrated data have been used. The first, known as "StackSlide", averages normalized power from each SFT. A "weighted Hough" scheme is also developed and used, and which also allows for a multi-interferometer search. The third method, known as "PowerFlux", is a variant of the StackSlide method in which the power is weighted before summing. In both the weighted Hough and PowerFlux methods, the weights are chosen according to the noise and detector antenna-pattern to maximize the signal-to-noise ratio. The respective advantages and disadvantages of these methods are discussed. Observing no evidence of periodic gravitational radiation, we report upper limits; we interpret these as limits on this radiation from isolated rotating neutron stars. The best population-based upper limit with 95% confidence on the gravitational-wave strain amplitude, found for simulated sources distributed isotropically across the sky and with isotropically distributed spin-axes, is 4.28E-24 (near 140 Hz). Strict upper limits are also obtained for small patches on the sky for best-case and worst-case inclinations of the spin axes., Comment: 39 pages, 41 figures An error was found in the computation of the C parameter defined in equation 44 which led to its overestimate by 2^(1/4). The correct values for the multi-interferometer, H1 and L1 analyses are 9.2, 9.7, and 9.3, respectively. Figure 32 has been updated accordingly. None of the upper limits presented in the paper were affected
Published: 2008

18. Egc: A Time-Frequency Augmented Template-Based Method For Gravitational Wave Burst Search In Ground-Based Interferometers

Author: Marie-Anne Bizouard, A.-C. Clapson, V. Brisson, Nicolas Leroy, M. Barsuglia, F. Cavalier, Patrice Hello, M. Davier, M. Varvella, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and VIRGO
Subjects: Physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, General relativity, business.industry, Gravitational wave, Detector, Spectral density, 01 natural sciences, Time–frequency analysis, Optics, Amplitude, Robustness (computer science), 0103 physical sciences, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Waveform, 010306 general physics, business, Algorithm
Abstract: The detection of burst-type events in the output of ground gravitational wave detectors is particularly challenging. The potential variety of astrophysical waveforms, as proposed by simulations and analytic studies in general relativity and the discrimination of actual signals from instrumental noise both are critical issues. Robust methods that achieve reasonable detection performances over a wide range of signals are required. We present here a hybrid burst-detection pipeline related to time–frequency transforms while based on matched filtering to provide robustness against noise characteristics. Studies on simulated noise show that the algorithm has a detection efficiency similar to other methods over very different waveforms and particularly good timing even for low amplitude signals: no bias for most tested waveforms and an average accuracy of 1.1 ms (down to 0.1 ms in the best case). Time–frequency-type parameters, useful for event classification, are also derived for noise spectral densities unfavourable to standard time–frequency algorithms.
Published: 2008

19. Searches for periodic gravitational waves from unknown isolated sources and Scorpius X-1: Results from the second LIGO science run

Author: T. Demma, H. Ward, Rana X. Adhikari, Peter Fritschel, B. F. Whiting, L. Wallace, B. Machenschalk, J. Zhang, J. S. Kissell, S. Chelkowski, D. B. Kozak, A. Weidner, S. Nagano, D. M. Whitbeck, K. C. Cannon, D. Meyers, P. Schwinberg, D. Sigg, G. Moreno, T. T. Fricke, Eugeniy E. Mikhailov, H. Zur Mühlen, W. G. Anderson, D. Barker, John Veitch, B. P. Abbott, J. Betzwieser, Sascha Schediwy, M. Coles, M. Guenther, S. Mukherjee, S. Roddy, H. J. Pletsch, Thomas Corbitt, M. MacInnis, Francesco Chiadini, A. Franzen, D. Busby, M. A. Arain, Gerhard Heinzel, Benno Willke, J. Clark, J. Logan, L. Ruet, Akiteru Takamori, A. M. Rogan, G. Mitselmakher, R. S. Amin, Andreas Freise, N. Fotopoulos, R. Rahkola, Gregory M. Harry, M. C. Díaz, A. Libson, Matthew Pitkin, Malcolm B. Gray, Patrick Brady, M. R. Smith, R. Taylor, J. G. Rollins, G. Mendell, M. Varvella, R. Wooley, V. Sannibale, P. Aufmuth, Lee Samuel Finn, S. Sakata, S. Wise, Erika D'Ambrosio, Jong H. Chow, David Crooks, M. Lei, B. O'Reilly, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, D. R. Ingram, S. Reid, Alberto Vecchio, Kenneth G. Libbrecht, Miquel Trias, Pankaj Sarin, T. Hayler, T. Regimbau, G. Traylor, Kevin M. Carter, Alessandra Buonanno, K. A. Thorne, Stefano Marano, R. Gustafson, S. M. Aston, K. Bayer, Jesper Munch, Vincenzo Fiumara, P. Shawhan, Roman Schnabel, Osamu Miyakawa, David H. Reitze, M. Fyffe, Badri Krishnan, K. Watts, H. Rehbein, Richard O'Shaughnessy, B. Barr, P. Patel, Malik Rakhmanov, E. Chalkey, D. J. Hosken, D. S. Rabeling, S. B. Anderson, B. Lee, J. Worden, M. Zanolin, R. J. Dupuis, Christian J. Killow, I. Yakushin, Hirotaka Takahashi, Antony C. Searle, C. M. Mow-Lowry, E. Innerhofer, S. Giampanis, Phil Willems, A. E. Villar, David B. Tanner, L. Williams, A. Rüdiger, N. E. Strand, S. Vass, J. H. Romie, A. Bullington, Rahul Biswas, C. I. Torrie, J. Thacker, D. Hoak, Subhasish Mitra, Ravi Kumar Kopparapu, A. M. Sintes, William E. Butler, Drew Keppel, L. Bogue, Sean T. McWilliams, T. Evans, P. Csatorday, S. Penn, David Jones, Nergis Mavalvala, M. Sung, S. Dhurandhar, V. Parameshwaraiah, M. Brinkmann, Jerome Degallaix, Linqing Wen, D. M. Strom, B. Blair, A. F. Brooks, A. J. Weinstein, Zewu Yan, A. M. Cruise, B. C. Barish, M. Weinert, Shantanu Desai, D. Hoyland, W. W. Johnson, Kip S. Thorne, K. D. Zaleski, G. S. Davies, R. DeSalvo, I. W. Martin, Shuichi Sato, M. Degree, R. Riesen, E. Goetz, H. Yamamoto, Jordan Camp, V. Kondrashov, Maria Alessandra Papa, E. Maros, Martin P McHugh, Harald Lück, M. V. Plissi, David E. McClelland, E. E. Doomes, R. A. Mercer, B. Sears, B. J. J. Slagmolen, M. H. P. M. van Putten, C. Van Den Broeck, D. Chin, Supriyo Sinha, Stanislav Babak, B. Lantz, F. J. Raab, T. Meier, J. Dalrymple, Kent Blackburn, Lisa M. Goggin, L. Sancho De La Jordana, G. Newton, Vuk Mandic, Vicky Kalogera, J. Zweizig, Peter R. Saulson, Duncan A. Brown, I. Leonor, John K. Cannizzo, V. P. Mitrofanov, J. Bogenstahl, Hartmut Grote, Joseph D. Romano, Jared Markowitz, Michael E Zucker, D. Cook, C. Vorvick, Laura Cadonati, Innocenzo M. Pinto, E. L. Robison, Yaohui Fan, H. Ding, Thomas Cokelaer, I. Wilmut, F. Kawazoe, M. C. Araya, J. Garofoli, S. Márka, S. H. Huttner, P. Ehrens, Kasem Mossavi, A. Lazzarini, S. C. McGuire, Daniel C. Woods, S. Klimenko, K. D. Giardina, Richard S. Savage, V. Pierro, J. Hanson, C. Cepeda, Julien Sylvestre, K. Rawlins, A. Moylan, Susan M. Scott, Teviet Creighton, A. L. Stuver, E. J. Daw, Boris Hage, K. Mailand, P. E. Lindquist, J. E. Brau, Maurizio Longo, J. Heefner, R. Grosso, Chad Hanna, K. Wette, J. C. Dumas, Curt Cutler, J. A. Giaime, Gianpietro Cagnoli, N. A. Lockerbie, Matthew Evans, L. Cardenas, R. Frey, Soumya D. Mohanty, X. Siemens, Richard J. Abbott, C. Wilkinson, W. R. Johnston, E. Chin, J. N. Marx, R. P. Croce, Krzysztof Belczynski, R. Mittleman, Nelson Christensen, Karel E. Urbanek, P. J. King, C. Parameswariah, P. Savov, James Whelan, P. G. Murray, N. Zotov, Roger Jones, Philip Nutzman, M. Heurs, K. Ryan, S. W. Ballmer, J. W C McNabb, Ik Siong Heng, F. Nocera, M. Pedraza, K. Kokeyama, D. Ugolini, A. G. Wiseman, P. Ajith, L. Zhang, B. Bhawal, K. Mason, M. Ramsunder, T. Z. Summerscales, S. Grunewald, V. Leonhardt, B. Bland, N. A. Robertson, R. L. Ward, G. Diederichs, I. Gholami, W. Wu, Gabriela Gonzalez, S. Ray-Majumder, R. Bork, J. Myers, Jonathan C. Leiner, V. Re, D. Hammer, M. Vallisneri, F. Seifert, Michael C. B. Ashley, P. T. Beyersdorf, V. Boschi, K. S. Ganezer, J. H. Hough, K. Kawabe, P. Charlton, C. N. Colacino, A. Rodriguez, M. Malec, Shourov Chatterji, D. Fazi, Helena Armandula, Rainer Weiss, Peter Kalmus, C. A. Cantley, N. Rainer, T. Delker, A. Di Credico, S. J. Waldman, Suvadeep Bose, C. Robinson, Massimo Tinto, C. Barker, Benjamin William Allen, Karsten Danzmann, P. Kwee, R. W. P. Drever, Yi Chen, R.L. Coldwell, Carlo Ungarelli, B. Rivera, Pablo Barriga, C. Gray, M. Mageswaran, I. A. Bilenko, V. Dergachev, Slawomir Gras, David J. Ottaway, K. Riles, Kenneth A. Strain, Marco G. Tarallo, J. Slutsky, Nicolás Yunes, A. Grant, Jolien D. E. Creighton, Vincenzo Matta, D. Webber, A. W. Heptonstall, Lindy Blackburn, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Keisuke Goda, Yi Pan, Chunglee Kim, Martin M. Fejer, J. R. Smith, T. Nash, W. Kells, Erik Katsavounidis, C. Messenger, S. Wiley, A. Sazonov, M. J. Lubinski, R. M S Schofield, D. Jackrel, John G. Dwyer, Haisheng Rong, Vladimir B. Braginsky, H. Vahlbruch, L. Ribichini, G. H. Sanders, A. Ivanov, V. V. Frolov, E. Espinoza, E. Myers, Damien Mudge, S. P. Vyachanin, Kentaro Somiya, W. Tyler, D. C. Coyne, Stephen Fairhurst, Yousuke Itoh, Ping Koy Lam, Kenji Numata, David Coward, A. M. Gretarsson, Pamela J. Russell, S. Richman, Chunnong Zhao, David H. Shoemaker, P. Cochrane, Oliver Jennrich, Roger K. Route, O. Burmeister, Stefan Hild, B. Johnson, W. Winkler, D. Kasprzyk, M. Samidi, G. T. Jones, Giuseppe Castaldi, S. E. Whitcomb, S. Gossler, C. V. Torres, S. Wen, R. McCarthy, H. Bantilan, M. A. Barton, D.B. DeBra, K. Y. Franzen, J. A. Sidles, Fabio Postiglione, D. Sellers, P. J. Veitch, H. Radkins, A. Cumming, A. Dietz, M. Ito, F. Ya. Khalili, Atsushi J. Nishizawa, T. Etzel, S. Saraf, Roberto Conte, C. Aulbert, L. Matone, A. Sibley, E. Messaritaki, M. Lormand, Sanichiro Yoshida, Sheila Rowan, Graham Woan, Robert L. Byer, P. J. Sutton, Ke Sun, J. Dickson, Bernard F. Schutz, Li Ju, Jan Harms, A. S. Sengupta, S. J. Berukoff, J. Greenhalgh, Guido Mueller, H. Overmier, S. Meshkov, Vincenzo Galdi, Benjamin J. Owen, Christopher Wipf, A. Bunkowski, K. V. Tokmakov, R. Schilling, Martin Hewitson, Junwei Cao, E. Hirose, Juri Agresti, H. Müller-Ebhardt, Eric Howell, Michael Landry, G. Billingsley, V. Sandberg, Kirk McKenzie, Morag M. Casey, A. Thüring, A. C. Melissinos, The LIGO Scientific Collaboration, LSC Collaboration, The, Castaldi, G., Galdi, V., Pierro, V., and Pinto, I. M.
Subjects: Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), NEUTRON-STARS, Frequency band, FOS: Physical sciences, PARALLAX, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, Parameter space, 01 natural sciences, General Relativity and Quantum Cosmology, Radio spectrum, Pulsar, 0103 physical sciences, QC176, ddc:530, 010303 astronomy & astrophysics, Nuclear and High Energy Physic, QB, pulsar, Physics, parallax, 010308 nuclear & particles physics, Gravitational wave, PULSAR, neutron-stars, LIGO, radiation, Neutron star, Amplitude, RADIATION, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
Abstract: We carry out two searches for periodic gravitational waves using the most sensitive few hours of data from the second LIGO science run. The first search is targeted at isolated, previously unknown neutron stars and covers the entire sky in the frequency band 160-728.8 Hz. The second search targets the accreting neutron star in the low-mass X-ray binary Scorpius X-1, covers the frequency bands 464-484 Hz and 604-624 Hz, and two binary orbit parameters. Both searches look for coincidences between the Livingston and Hanford 4-km interferometers. For isolated neutron stars our 95% confidence upper limits on the gravitational wave strain amplitude range from 6.6E-23 to 1E-21 across the frequency band; For Scorpius X-1 they range from 1.7E-22 to 1.3E-21 across the two 20-Hz frequency bands. The upper limits presented in this paper are the first broad-band wide parameter space upper limits on periodic gravitational waves using coherent search techniques. The methods developed here lay the foundations for upcoming hierarchical searches of more sensitive data which may detect astrophysical signals., 35 pages, 30 figures
Published: 2007

20. Search for gravitational wave radiation associated with the pulsating tail of the SGR1806−20hyperflare of 27 December 2004 using LIGO

Author: M. R. Smith, I. Leonor, John K. Cannizzo, Alberto Vecchio, B. Lantz, Gianpietro Cagnoli, J. Myers, Shourov Chatterji, D. Fazi, S. J. Waldman, Suvadeep Bose, J. D. E. Creighton, H. Yamamoto, J. C. Dumas, R. P. Croce, Jong H. Chow, R. M. S. Schofield, B. Lee, Jonathan C. Leiner, R. Taylor, V. Re, Benno Willke, Albert Lazzarini, D. Hoak, J. Clark, G. Mendell, L. Ruet, Benjamin J. Owen, Christopher Wipf, K. V. Tokmakov, Rainer Weiss, D. Barker, G. Diederichs, R. W. P. Drever, K. D. Giardina, K. Kokeyama, W. W. Johnson, David Crooks, B. Bland, F. Ya. Khalili, A. Cumming, Martin Hewitson, Atsushi J. Nishizawa, Junwei Cao, Giuseppe Castaldi, M. V. Plissi, Soumya D. Mohanty, R. L. Savage, S. Roddy, N. Zotov, Alessandra Buonanno, D. J. Hosken, J. G. Rollins, Karel E. Urbanek, J. W C McNabb, David Blair, V. Leonhardt, A. J. Weinstein, K. Mason, Hartmut Grote, A. M. Sintes, Helena Armandula, Ke-Xun Sun, C. A. Cantley, A. M. Rogan, I. Gholami, W. Wu, C. Robinson, Benjamin William Allen, E. Innerhofer, S. Giampanis, Sanichiro Yoshida, A. M. Gretarsson, N. Rainer, G. P. Newton, M. Fyffe, Sanjeev Dhurandhar, S. Saraf, S. Ray-Majumder, Lee Samuel Finn, Karsten Danzmann, Roberto Conte, N. A. Lockerbie, N. Fotopoulos, R. Rahkola, Graham Woan, L. Matone, Robert L. Byer, Stuart Reid, Gabriela Gonzalez, P. T. Beyersdorf, Carlos Cepeda, P. E. Lindquist, Slawomir Gras, Peter Aufmuth, E. Messaritaki, Sheila Rowan, H. Rehbein, H. Bantilan, Jesper Munch, Robert J. McCarthy, C. N. Colacino, Stefano Marano, S. B. Anderson, L. Wallace, D. M. Whitbeck, R. Frey, Shuichi Sato, J. N. Marx, A. Sibley, Erika D'Ambrosio, M. Degree, M. Lormand, David B. Tanner, Stephen Fairhurst, R. J. Dupuis, Ravi Kumar Kopparapu, Bernard F. Schutz, Li Ju, J. Hanson, Yi Chen, B. Bhawal, M. Landry, S. H. Huttner, Vincenzo Galdi, M. A. Barton, R. L. Ward, M. Sung, A. M. Cruise, Guido Mueller, V. Boschi, Joseph D. Romano, Jared Markowitz, A. G. Wiseman, Kasem Mossavi, S. Sakata, S. Wen, A. Dietz, Shantanu Desai, M. Pedraza, Vuk Mandic, A. Bullington, Rahul Biswas, L. Bogue, Sean T. McWilliams, V. V. Frolov, J. H. Romie, Miquel Trias, K. Bayer, Rana X. Adhikari, Gareth Jones, J. A. Giaime, D. C. Coyne, Kip S. Thorne, F. J. Raab, Maria Alessandra Papa, R.L. Coldwell, V. Parameshwaraiah, P. Savov, B. Machenschalk, L. Ribichini, T. T. Fricke, Kevin M. Ryan, I. Yakushin, Hirotaka Takahashi, James Whelan, R. Gustafson, P. Ajith, D.B. DeBra, Kent Blackburn, V. P. Mitrofanov, S. Márka, Jordan Camp, E. Hirose, Juri Agresti, A. Bunkowski, J. Zhang, D. Chin, Supriyo Sinha, Stanislav Babak, M. Ito, N. A. Robertson, T. Meier, Guenakh Mitselmakher, Francesco Chiadini, A. Franzen, Kirk McKenzie, M. C. Araya, Richard O'Shaughnessy, B. Barr, P. Patel, Malik Rakhmanov, Kenneth A. Strain, Boris Hage, J. Dalrymple, C. Gray, J. Worden, L. Williams, H. Müller-Ebhardt, E. Myers, Duncan A. Brown, K. Y. Franzen, A. Rüdiger, B. O'Reilly, Morag M. Casey, M. Heurs, D. Hammer, F. Seifert, Yi Pan, Eric Howell, Eugeniy E. Mikhailov, S. Chelkowski, J. Dickson, C. I. Torrie, Jan Harms, A. S. Sengupta, J. Zweizig, Michael C. B. Ashley, J. A. Sidles, Matthew Evans, L. Cardenas, Kentaro Somiya, G. Billingsley, A. Grant, D. B. Kozak, C. Vorvick, Kenji Numata, Peter Kalmus, J. Greenhalgh, Innocenzo M. Pinto, R. Riesen, Evan Goetz, A. Thüring, S. Klimenko, A. C. Melissinos, Fabio Postiglione, T. Etzel, Carlo Ungarelli, Roland Schilling, Thomas Cokelaer, T. Z. Summerscales, P. Kwee, Marco G. Tarallo, L. Zhang, J. Slutsky, S. Meshkov, D. Webber, A. Weidner, D. Meyers, P. Schwinberg, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, J. R. Smith, Malcolm B. Gray, R. Bork, T. Nash, A. Brooks, P. Ehrens, Richard J. Abbott, P. J. Veitch, K. Wette, H. Zur Mühlen, W. G. Anderson, S. E. Whitcomb, S. Gossler, Timothy Evans, B. P. Abbott, D. Sigg, S. W. Ballmer, C. Aulbert, Chunnong Zhao, David H. Shoemaker, P. Cochrane, Roman Schnabel, Vincenzo Fiumara, J. E. Brau, G. Moreno, S. Vass, Subhasish Mitra, O. Burmeister, J. Thacker, W. Kells, D. Busby, H. Ward, Soma Mukherjee, Peter King, Drew Keppel, Zewu Yan, B. Johnson, D. Kasprzyk, P. G. Murray, M. Samidi, J. H. Hough, S. Wise, S. Grunewald, Douglas R. Cook, Michele Zanolin, Keisuke Goda, Erik Katsavounidis, Kenneth G. Libbrecht, M. J. Lubinski, D. Jackrel, K. Mailand, Maurizio Longo, John G. Dwyer, Krzysztof Belczynski, Vladimir B. Braginsky, H. Vahlbruch, R. Mittleman, K. Riles, Nelson Christensen, John Veitch, E. Espinoza, M. Weinert, Yousuke Itoh, Sascha Schediwy, M. MacInnis, Vincenzo Matta, R. S. Amin, Andreas Freise, Vincenzo Pierro, Matthew Pitkin, C. Messenger, M. Varvella, R. Wooley, T. Hayler, Ping Koy Lam, S. Kamat, J. Heefner, R. Grosso, M. A. Arain, Gregory M. Harry, I. Wilmut, F. Kawazoe, J. Garofoli, J. S. Kissel, M. Lei, Roger Jones, K. Kawabe, S. M. Aston, B. Rivera, Pablo Barriga, M. Mageswaran, I. W. Martin, Virginio Sannibale, David E. McClelland, Michele Vallisneri, Ik Siong Heng, Emma L. Robinson, V. Kondrashov, R. DeSalvo, E. E. Doomes, L. Sancho De La Jordana, K. Rawlins, C. Torres, A. Rodriguez, C. Barker, Daniel C. Woods, Pankaj Sarin, A. L. Stuver, Martin P McHugh, B. J. J. Slagmolen, K. Watts, E. Maros, P. Shawhan, P. Charlton, A. Di Credico, A. E. Villar, I. A. Bilenko, V. Dergachev, Nergis Mavalvala, Jerome Degallaix, David J. Ottaway, B. C. Barish, David Jones, A. Ivanov, H. Radkins, Damien Mudge, S. P. Vyachanin, Peter R. Saulson, M. Brinkmann, W. Tyler, Walter Winkler, David Coward, Harald Lück, D. S. Rabeling, R. A. Mercer, S. C. McGuire, Lindy Blackburn, Chunglee Kim, V. Sandberg, Massimo Tinto, Nicolás Yunes, Badri Krishnan, E. Chalkey, Antony C. Searle, C. M. Mow-Lowry, D. Hoyland, B. F. Whiting, C. Van Den Broeck, P. J. Sutton, J. Bogenstahl, Michael E Zucker, E. Chin, Marco Aurelio Diaz, S. Penn, Pamela J. Russell, Roger K. Route, K. A. Thorne, J. Betzwieser, D. Ugolini, Stefan Hild, H. Overmier, D. Sellers, M. Guenther, Patrick Brady, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, Osamu Miyakawa, David H. Reitze, Gavin Davies, B. Sears, Vicky Kalogera, Yaohui Fan, Laura Cadonati, A. Moylan, Susan M. Scott, Teviet Creighton, Chad Hanna, X. Siemens, C. Wilkinson, T. Demma, Peter Fritschel, K. C. Cannon, H. J. Pletsch, G. Traylor, Thomas Corbitt, A. Heptonstall, M. Malec, D. R. Ingram, Phil Willems, D. M. Strom, and Lisa M. Goggin
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics, Light curve, 01 natural sciences, Electromagnetic radiation, Asteroseismology, LIGO, law.invention, Neutron star, Amplitude, law, 0103 physical sciences, 010303 astronomy & astrophysics, Flare
Abstract: We have searched for gravitational waves (GWs) associated with the SGR 1806−20 hyperflare of 27 December 2004. This event, originating from a Galactic neutron star, displayed exceptional energetics. Recent investigations of the x-ray light curve’s pulsating tail revealed the presence of quasiperiodic oscillations (QPOs) in the 30–2000 Hz frequency range, most of which coincides with the bandwidth of the LIGO detectors. These QPOs, with well-characterized frequencies, can plausibly be attributed to seismic modes of the neutron star which could emit GWs. Our search targeted potential quasimonochromatic GWs lasting for tens of seconds and emitted at the QPO frequencies. We have observed no candidate signals above a predetermined threshold, and our lowest upper limit was set by the 92.5 Hz QPO observed in the interval from 150 s to 260 s after the start of the flare. This bound corresponds to a (90% confidence) root-sum-squared amplitude h^(90%)_(rss-det) =4.5×10^(−22) strain Hz^(−1/2) on the GW waveform strength in the detectable polarization state reaching our Hanford (WA) 4 km detector. We illustrate the astrophysical significance of the result via an estimated characteristic energy in GW emission that we would expect to be able to detect. The above result corresponds to 7.7×10^(46) erg (=4.3×10^(−8) M_⊙c^2), which is of the same order as the total (isotropic) energy emitted in the electromagnetic spectrum. This result provides a means to probe the energy reservoir of the source with the best upper limit on the GW waveform strength published and represents the first broadband asteroseismology measurement using a GW detector.
Published: 2007

21. Publisher’s Note: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds [Phys. Rev. DPRVDAQ0556-282176, 022001 (2007)]

Author: B Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, M. Burgamy, O. Burmeister, D. Busby, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Diaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. Goggin, G. Gonzalez, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, W. O. Hamilton, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Luck, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Marka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, B. J. McCaulley, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, P. Miller, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, V. Moody, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Muller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, T. Nash, G. Newton, A. Nishizawa, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, H.-J. Paik, Y. Pan, M. A. Papa, V. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, M. Ramsuder, K. Rawlins, S. Ray-Majumder, V. Re, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rudiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thuring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, J. Weaver, D. Webber, A. Weber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, P. Zhang, C. Zhao, N. Zotov, M. Zucker, H. zur Muhlen, and J. Zweizig
Subjects: Physics, Nuclear and High Energy Physics, Cross correlation analysis, Humanities
Abstract: B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B. C. Barish, C. Barker, D. Barker, B. Barr, P. Barriga, M. A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P. T. Beyersdorf, B. Bhawal, I. A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, M. Brinkmann, A. Brooks, D. A. Brown, A. Bullington, A. Bunkowski, A. Buonanno, M. Burgamy, O. Burmeister, D. Busby, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, J. Cannizzo, K. Cannon, C. A. Cantley, J. Cao, L. Cardenas, M. M. Casey, G. Castaldi, C. Cepeda, E. Chalkey, P. Charlton, S. Chatterji, S. Chelkowski, Y. Chen, F. Chiadini, D. Chin, E. Chin, J. Chow, N. Christensen, J. Clark, P. Cochrane, T. Cokelaer, C. N. Colacino, R. Coldwell, R. Conte, D. Cook, T. Corbitt, D. Coward, D. Coyne, J. D. E. Creighton, T. D. Creighton, R. P. Croce, D. R. M. Crooks, A. M. Cruise, A. Cumming, J. Dalrymple, E. D’Ambrosio, K. Danzmann, G. Davies, D. DeBra, J. Degallaix, M. Degree, T. Demma, V. Dergachev, S. Desai, R. DeSalvo, S. Dhurandhar, M. Diaz, J. Dickson, A. Di Credico, G. Diederichs, A. Dietz, E. E. Doomes, R. W. P. Drever, J.-C. Dumas, R. J. Dupuis, J. G. Dwyer, P. Ehrens, E. Espinoza, T. Etzel, M. Evans, T. Evans, S. Fairhurst, Y. Fan, D. Fazi, M. M. Fejer, L. S. Finn, V. Fiumara, N. Fotopoulos, A. Franzen, K. Y. Franzen, A. Freise, R. Frey, T. Fricke, P. Fritschel, V. V. Frolov, M. Fyffe, V. Galdi, J. Garofoli, I. Gholami, J. A. Giaime, S. Giampanis, K. D. Giardina, K. Goda, E. Goetz, L. Goggin, G. Gonzalez, S. Gossler, A. Grant, S. Gras, C. Gray, M. Gray, J. Greenhalgh, A. M. Gretarsson, R. Grosso, H. Grote, S. Grunewald, M. Guenther, R. Gustafson, B. Hage, W. O. Hamilton, D. Hammer, C. Hanna, J. Hanson, J. Harms, G. Harry, E. Harstad, T. Hayler, J. Heefner, I. S. Heng, A. Heptonstall, M. Heurs, M. Hewitson, S. Hild, E. Hirose, D. Hoak, D. Hosken, J. Hough, E. Howell, D. Hoyland, S. H. Huttner, D. Ingram, E. Innerhofer, M. Ito, Y. Itoh, A. Ivanov, D. Jackrel, B. Johnson, W. W. Johnson, D. I. Jones, G. Jones, R. Jones, L. Ju, P. Kalmus, V. Kalogera, D. Kasprzyk, E. Katsavounidis, K. Kawabe, S. Kawamura, F. Kawazoe, W. Kells, D. G. Keppel, F. Ya. Khalili, C. Kim, P. King, J. S. Kissel, S. Klimenko, K. Kokeyama, V. Kondrashov, R. K. Kopparapu, D. Kozak, B. Krishnan, P. Kwee, P. K. Lam, M. Landry, B. Lantz, A. Lazzarini, B. Lee, M. Lei, J. Leiner, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, N. A. Lockerbie, M. Longo, M. Lormand, M. Lubinski, H. Luck, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, M. Malec, V. Mandic, S. Marano, S. Marka, J. Markowitz, E. Maros, I. Martin, J. N. Marx, K. Mason, L. Matone, V. Matta, N. Mavalvala, R. McCarthy, B. J. McCaulley, D. E. McClelland, S. C. McGuire, M. McHugh, K. McKenzie, J. W. C. McNabb, S. McWilliams, T. Meier, A. Melissinos, G. Mendell, R. A. Mercer, S. Meshkov, E. Messaritaki, C. J. Messenger, D. Meyers, E. Mikhailov, P. Miller, S. Mitra, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Mohanty, V. Moody, G. Moreno, K. Mossavi, C. MowLowry, A. Moylan, D. Mudge, G. Mueller, S. Mukherjee, H. Muller-Ebhardt, J. Munch, P. Murray, E. Myers, J. Myers, T. Nash, G. Newton, A. Nishizawa, K. Numata, B. O’Reilly, R. O’Shaughnessy, D. J. Ottaway, H. Overmier, B. J. Owen, H.-J. Paik, Y. Pan, M. A. Papa, V. Parameshwaraiah, P. Patel, M. Pedraza, S. Penn, V. Pierro, I. M. Pinto, M. Pitkin, H. Pletsch, M. V. Plissi, F. Postiglione, R. Prix, V. Quetschke, F. Raab, D. Rabeling, H. Radkins, R. Rahkola, N. Rainer, M. Rakhmanov, M. Ramsuder, K. Rawlins, S. Ray-Majumder, V. Re, H. Rehbein, S. Reid, D. H. Reitze, L. Ribichini, R. Riesen, K. Riles, B. Rivera, N. A. Robertson, C. Robinson, E. L. Robinson, S. Roddy, A. Rodriguez, A. M. Rogan, J. Rollins, J. D. Romano, J. Romie, R. Route, S. Rowan, A. Rudiger, L. Ruet, P. Russell, K. Ryan, S. Sakata, M. Samidi, L. Sancho de la Jordana, V. Sandberg, V. Sannibale, S. Saraf, P. Sarin, B. S. Sathyaprakash, S. Sato, P. R. Saulson, R. Savage, P. Savov, S. Schediwy, R. Schilling, R. Schnabel, R. Schofield, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, F. Seifert, D. Sellers, A. S. Sengupta, P. Shawhan, D. H. Shoemaker, A. Sibley, J. A. Sidles, X. Siemens, D. Sigg, S. Sinha, A. M. Sintes, B. J. J. Slagmolen, J. Slutsky, J. R. Smith, M. R. Smith, K. Somiya, K. A. Strain, D. M. Strom, A. Stuver, T. Z. Summerscales, K.-X. Sun, M. Sung, P. J. Sutton, H. Takahashi, D. B. Tanner, M. Tarallo, R. Taylor, R. Taylor, J. Thacker, K. A. Thorne, K. S. Thorne, A. Thuring, K. V. Tokmakov, C. Torres, C. Torrie, G. Traylor, M. Trias, W. Tyler, D. Ugolini, C. Ungarelli, K. Urbanek, H. Vahlbruch, M. Vallisneri, C. Van Den Broeck, M. Varvella, S. Vass, A. Vecchio, J. Veitch, P. Veitch, A. Villar, C. Vorvick, S. P. Vyachanin, S. J. Waldman, L. Wallace, H. Ward, R. Ward, K. Watts, J. Weaver, D. Webber, A. Weber, A. Weidner, M. Weinert, A. Weinstein, R. Weiss, S. Wen, K. Wette, J. T. Whelan, D. M. Whitbeck, S. E. Whitcomb, B. F. Whiting, C. Wilkinson, P. A. Willems, L. Williams, B. Willke, I. Wilmut, W. Winkler, C. C. Wipf, S. Wise, A. G. Wiseman, G. Woan, D. Woods, R. Wooley, J. Worden, W. Wu, I. Yakushin, H. Yamamoto, Z. Yan, S. Yoshida, N. Yunes, M. Zanolin, J. Zhang, L. Zhang, PHYSICAL REVIEW D 77, 069904(E) (2008)
Published: 2007

22. Upper limit map of a background of gravitational waves

Author: K. Bayer, P. Shawhan, Ravi Kumar Kopparapu, A. M. Sintes, A. M. Cruise, J. Zweizig, Stefano Marano, S. M. Aston, Badri Krishnan, E. Chalkey, Antony C. Searle, K. Rawlins, S. Sakata, Miquel Trias, C. M. Mow-Lowry, E. Hirose, S. Vass, J. H. Romie, Juri Agresti, Vuk Mandic, G. Mitselmakher, V. Parameshwaraiah, D. Hoyland, S. Chelkowski, D. B. Kozak, H. Overmier, Richard O'Shaughnessy, B. Barr, P. Patel, Malik Rakhmanov, D. Barker, Vincenzo Galdi, J. Worden, L. Williams, A. Rüdiger, L. Ribichini, H. Müller-Ebhardt, C. Van Den Broeck, S. Roddy, Eric Howell, Michael Landry, M. R. Smith, V. Leonhardt, I. Gholami, W. Wu, D. Chin, Supriyo Sinha, Stanislav Babak, P. T. Beyersdorf, P. Aufmuth, Lee Samuel Finn, Duncan A. Brown, R. Riesen, B. O'Reilly, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, G. Billingsley, J. C. Dumas, V. Boschi, E. Myers, A. Weidner, Soumya D. Mohanty, R. Frey, T. Demma, P. J. King, J. Cannizzo, M. Heurs, A. Bullington, A. G. Wiseman, Osamu Miyakawa, David H. Reitze, V. Sandberg, A. Rodriguez, Rahul Biswas, L. Bogue, S. Klimenko, C. Barker, Kentaro Somiya, D. C. Coyne, I. Yakushin, P. G. Murray, N. Zotov, Hirotaka Takahashi, C. I. Torrie, A. Dietz, D. Meyers, A. Bunkowski, R.L. Coldwell, J. A. Giaime, P. Schwinberg, Sanichiro Yoshida, Richard J. Abbott, Innocenzo M. Pinto, Thomas Cokelaer, Sean T. McWilliams, S. Penn, K. Mason, Nicolás Yunes, K. Kokeyama, T. Evans, H. Zur Mühlen, W. G. Anderson, Maurizio Longo, Krzysztof Belczynski, R. Mittleman, M. C. Díaz, Kenji Numata, R. P. Croce, A. Grant, Graham Woan, Robert L. Byer, R. Schilling, M. Weinert, A. Cumming, S. Ray-Majumder, Peter Fritschel, V. Kondrashov, B. Sears, Pankaj Sarin, Karel E. Urbanek, Benno Willke, J. Clark, L. Ruet, J. N. Marx, J. Bogenstahl, Michael E Zucker, P. J. Sutton, Bernard F. Schutz, Li Ju, B. P. Abbott, T. Etzel, Nelson Christensen, B. Bland, C. N. Colacino, Jordan Camp, Malcolm B. Gray, D. Cook, D. Ugolini, Yaohui Fan, T. Meier, J. Dalrymple, Gabriela Gonzalez, G. Traylor, Guido Mueller, P. Charlton, Kirk McKenzie, Keisuke Goda, A. Di Credico, Yi Chen, J. Betzwieser, Francesco Chiadini, E. Messaritaki, M. Lormand, D. R. Ingram, A. Franzen, G. Newton, Richard S. Savage, V. Pierro, Alessandra Buonanno, K. A. Thorne, Sheila Rowan, C. Vorvick, S. Mukherjee, B. Bhawal, G. Moreno, M. Ito, Vincenzo Fiumara, Rana X. Adhikari, Gareth Jones, D. Busby, C. A. Cantley, H. Rehbein, S. Meshkov, I. A. Bilenko, V. Dergachev, K. Watts, S. B. Anderson, M. J. Lubinski, B. F. Whiting, B. Machenschalk, Martin P McHugh, B. J. J. Slagmolen, E. Chin, D. S. Rabeling, Stephen Fairhurst, M. Zanolin, J. Hanson, C. Cepeda, J. E. Brau, Gianpietro Cagnoli, J. Zhang, David J. Ottaway, J. Dickson, Jan Harms, A. S. Sengupta, K. Mailand, David B. Tanner, Matthew Evans, E. Innerhofer, S. Giampanis, R. M S Schofield, D. Jackrel, J. Greenhalgh, H. J. Pletsch, Thomas Corbitt, K. D. Giardina, R. Bork, M. Pedraza, C. Robinson, Benjamin William Allen, Karsten Danzmann, C. Gray, Slawomir Gras, L. Cardenas, J. Thacker, A. E. Villar, N. Fotopoulos, R. Rahkola, S. E. Whitcomb, S. Gossler, R. Taylor, Marco G. Tarallo, R. A. Mercer, Giuseppe Castaldi, F. Ya. Khalili, Atsushi J. Nishizawa, Benjamin J. Owen, Harald Lück, G. Diederichs, Drew Keppel, Zewu Yan, M. Sung, S. Dhurandhar, A. F. Brooks, A. J. Weinstein, Christopher Wipf, K. V. Tokmakov, J. Myers, M. Guenther, Patrick Brady, S. C. McGuire, A. M. Rogan, Erika D'Ambrosio, B. Lee, S. Saraf, John G. Dwyer, Vladimir B. Braginsky, Martin Hewitson, Junwei Cao, J. Slutsky, D. Webber, Maria Alessandra Papa, Laura Cadonati, W. W. Johnson, M. Degree, Shourov Chatterji, D. Hoak, D. Fazi, S. J. Waldman, Suvadeep Bose, Roberto Conte, David Jones, Nergis Mavalvala, Jerome Degallaix, C. Aulbert, E. Goetz, Jesper Munch, Kent Blackburn, M. V. Plissi, I. Leonor, T. Z. Summerscales, L. Matone, B. C. Barish, Alberto Vecchio, A. Moylan, Susan M. Scott, G. S. Davies, Teviet Creighton, R. DeSalvo, H. Vahlbruch, E. Espinoza, J. H. Hough, S. Wise, K. Ryan, V. Quetschke, K. Kawabe, Peter R. Saulson, Bangalore Suryanarayana Sathyaprakash, E. Black, Shantanu Desai, Kip S. Thorne, E. E. Doomes, R. L. Ward, A. Sibley, Martin M. Fejer, Helena Armandula, J. R. Smith, Ke-Xun Sun, A. L. Stuver, Hartmut Grote, N. Rainer, R. J. Dupuis, R. Gustafson, L. Sancho De La Jordana, P. Kwee, S. Reid, Kenneth G. Libbrecht, Jonathan C. Leiner, Chad Hanna, V. Kalogera, D. M. Strom, X. Siemens, C. Wilkinson, V. Re, V. P. Mitrofanov, Yousuke Itoh, P. E. Lindquist, M. C. Araya, W. Kells, D. J. Hosken, Boris Hage, E. Katsavounidis, Vincenzo Matta, D. M. Whitbeck, A. W. Heptonstall, A. Ivanov, J. W C McNabb, S. Márka, K. C. Cannon, S. H. Huttner, Daniel C. Woods, N. A. Robertson, Damien Mudge, Rainer Weiss, Roman Schnabel, T. T. Fricke, S. P. Vyachanin, D. Hammer, M. Vallisneri, F. Seifert, Michael C. B. Ashley, Subhasish Mitra, W. Tyler, J. Heefner, R. Grosso, Kenneth A. Strain, Shuichi Sato, Eugeniy E. Mikhailov, A. M. Gretarsson, David Coward, C. Messenger, Peter Kalmus, C. V. Torres, Carlo Ungarelli, Y. Pan, N. A. Lockerbie, E. Maros, R. W. P. Drever, P. Savov, James Whelan, P. Ajith, Ik Siong Heng, L. Zhang, Emma L. Robinson, Pamela J. Russell, S. Grunewald, Roger K. Route, Joseph D. Romano, Jared Markowitz, S. Wen, Kasem Mossavi, A. Lazzarini, David Blair, K. Riles, Stefan Hild, Chunnong Zhao, Jolien D. E. Creighton, M. Malec, Phil Willems, Lindy Blackburn, David H. Shoemaker, P. Cochrane, Chunglee Kim, O. Burmeister, H. Yamamoto, B. Lantz, F. J. Raab, Lisa M. Goggin, B. Johnson, W. Winkler, D. Kasprzyk, M. Samidi, H. Radkins, R. McCarthy, H. Bantilan, M. A. Barton, D.B. DeBra, K. Y. Franzen, J. A. Sidles, Fabio Postiglione, D. Sellers, P. J. Veitch, Andreas Freise, Matthew Pitkin, J. G. Rollins, G. Mendell, M. Varvella, R. Wooley, V. Sannibale, T. Hayler, H. Ward, L. Wallace, John Veitch, Sascha Schediwy, M. MacInnis, R. S. Amin, I. Wilmut, F. Kawazoe, J. Garofoli, J. S. Kissel, Roger Jones, B. Rivera, Pablo Barriga, M. Mageswaran, V. V. Frolov, Ping Koy Lam, D. Sigg, M. A. Arain, Gregory M. Harry, M. Lei, M. Fyffe, Morag M. Casey, A. Thüring, A. C. Melissinos, I. W. Martin, David E. McClelland, P. Ehrens, K. Wette, S. W. Ballmer, Jong H. Chow, David Crooks, M. Brinkmann, The LIGO Scientific Collaboration, LSC Collaboration, The, Castaldi, G., Galdi, V., Pierro, V., and Pinto, I. M.
Subjects: Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, 01 natural sciences, Power law, General Relativity and Quantum Cosmology, Gravitational wave background, QC350, 0103 physical sciences, ddc:530, Limit (mathematics), 010306 general physics, QC, QB, Nuclear and High Energy Physic, Physics, 010308 nuclear & particles physics, Gravitational wave, Astrophysics (astro-ph), Isotropy, Spectral density, LIGO, radiation, Amplitude, RADIATION, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
Abstract: We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, for example, the gravitational wave background is dominated by a small number of distinct astrophysical sources. No signal was seen. Upper limit maps were produced assuming two different power laws for the source strain power spectrum. For an f^-3 power law and using the 50 Hz to 1.8 kHz band the upper limits on the source strain power spectrum vary between 1.2e-48 Hz^-1 (100 Hz/f)^3 and 1.2e-47 Hz^-1 (100 Hz /f)^3, depending on the position in the sky. Similarly, in the case of constant strain power spectrum, the upper limits vary between 8.5e-49 Hz^-1 and 6.1e-48 Hz^-1. As a side product a limit on an isotropic background of gravitational waves was also obtained. All limits are at the 90% confidence level. Finally, as an application, we focused on the direction of Sco-X1, the closest low-mass X-ray binary. We compare the upper limit on strain amplitude obtained by this method to expectations based on the X-ray luminosity of Sco-X1., Comment: 11 pages, 9 figures, 2 tables
Published: 2007

23. Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory

Author: R. Grosso, Seiji Kawamura, Reinhard Prix, Elizabeth Harstad, O. Miyakawa, Walter Winkler, B. Sears, M. R. Smith, Harald Lück, R. Riesen, Michele Vallisneri, Ik Siong Heng, S. C. McGuire, A. Dietz, P. Hoang, C. Barker, David H. Reitze, C. Aulbert, G. Billingsley, B. Lee, W. Kells, A. Heptonstall, S. H. Huttner, R. Bork, E. D'Ambrosio, D. Cook, V. Leonhardt, D. I. Jones, S. Meshkov, R. Wooley, S. Sakata, L. Wallace, A. M. Cruise, S. Penn, Marco G. Tarallo, J. Slutsky, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, Martin M. Fejer, J. R. Smith, K. Mailand, J. Thacker, D. Chin, Stanislav Babak, Roger K. Route, Duncan A. Brown, K. Rawlins, C. Messenger, D. M. Strom, P. Willems, M. Lubinski, Michael E Zucker, J. Garofoli, W. G. Anderson, I. Leonor, John K. Cannizzo, Jolien D. E. Creighton, Gavin Davies, M. Samidi, Lee Samuel Finn, K. Blackburn, Miquel Trias, M. Pedraza, K. A. Thorne, E. Myers, J. Hanson, Soumya D. Mohanty, D. Ugolini, B. Abbott, S. B. Anderson, Albrecht Rüdiger, Stefan Hild, Gabriela Gonzalez, Lindy Blackburn, D. Sellers, H. Overmier, R. J. Dupuis, P. G. Murray, J. Worden, D. Meyers, G. Diederichs, M. Lormand, N. Zotov, G. Mendell, W. Hua, Martin P McHugh, Vicky Kalogera, Chunglee Kim, M. Fyffe, M. Ito, J. H. Hough, Richard O'Shaughnessy, B. Barr, Malik Rakhmanov, Nergis Mavalvala, Jerome Degallaix, A. Sibley, Sarah J. Vigeland, K. Mason, A. Brooks, Guenakh Mitselmakher, S. Wen, Ping Koy Lam, B. J. J. Slagmolen, S. Márka, A. Villar, H. Yamamoto, C. Vorvick, J. A. Giaime, R. Savage, Peter Fritschel, P. Kwee, E. E. Doomes, K. C. Cannon, J. Romie, F. Ya. Khalili, S. Ray-Majumder, Roland Schilling, J. Myers, Kenneth A. Strain, Yaohui Fan, A. Weidner, Chunnong Zhao, A. Bunkowski, P. Russell, J. Heefner, Andre Thüring, E. J. Elliffe, Helge Müller-Ebhardt, David H. Shoemaker, H. Armandula, M. A. Barton, L. Sancho De La Jordana, S. Gossler, D. Kozak, Rana X. Adhikari, Gareth Jones, I. Yakushin, B. Machenschalk, A. M. Rogan, Nicolás Yunes, C. N. Colacino, C. Wilkinson, Peter R. Saulson, P. Schwinberg, G. Traylor, F. J. Raab, V. V. Frolov, J. Betzwieser, Thomas Corbitt, D.B. DeBra, J. C. Dumas, M. Guenther, D. Ingram, K. Y. Franzen, M. Malec, Yi Chen, Scott Koranda, Daniel C. Woods, L. Matone, G. Moreno, D. I. Robertson, Gregory M. Harry, N. Hindman, D. Busby, Thomas Cokelaer, K. Wette, J. N. Marx, S. Wise, Matthew Pitkin, D. Kasprzyk, I. Gholami, Laura Cadonati, S. Grunewald, D. Hoak, K. Kokeyama, A. Khan, M. Zanolin, D. B. Tanner, B. Bhawal, A. Moylan, Susan M. Scott, Benjamin Sheard, I. W. Martin, Malcolm B. Gray, Chad Hanna, Curt Cutler, X. Siemens, M. Mageswaran, K. Bayer, Clive C. Speake, P. J. Veitch, Marco Aurelio Diaz, S. Chatterji, David E. McClelland, A. L. Stuver, M. Lei, R. Frey, C. Torrie, Kenneth G. Libbrecht, Damien Mudge, V. Re, S. P. Vyachanin, S. Roddy, D. J. Hosken, V. Sandberg, J. G. Rollins, B. Bland, R. Abbott, R. Gustafson, A. G. Wiseman, Alicia M. Sintes, V. Kondrashov, T. Hayler, P. Ehrens, H. Rehbein, Fumiko Kawazoe, David Coward, A. Lazzarini, Krzysztof Belczynski, R. DeSalvo, C. Torres, A. Rodriguez, Kentaro Somiya, B. F. Whiting, S. Giampanis, R. Mittleman, Nelson Christensen, K. Watts, D. M. Whitbeck, P. Charlton, E. Chin, Soma Mukherjee, A. Di Credico, D. S. Rabeling, S. E. Seader, Kenji Numata, S. Dhurandar, J. Zweizig, A. Franzen, R. Rahkola, P. Sarin, I. A. Bilenko, V. Dergachev, Rainer Weiss, David J. Ottaway, P. Lindquist, K. Ryan, W. Tyler, R. W. P. Drever, R. A. Mercer, V. Sannibale, W. W. Johnson, Stephen Fairhurst, T. T. Fricke, Z. Yan, C. Gray, J. Dickson, Jan Harms, A. S. Sengupta, E. Hirose, Juri Agresti, Jesper Munch, J. W C McNabb, Eric D. Black, Badri Krishnan, Eugeniy E. Mikhailov, H. zur Mühlen, David Blair, Jordan Camp, Antony C. Searle, C. M. Mow-Lowry, S. Ballmer, James Whelan, P. Ajith, Frank Seifert, D. Hoyland, M. Araya, O. Spjeld, D. Coyne, T. Meier, J. Dalrymple, G. Newton, Shuichi Sato, Kirk McKenzie, Simon Chelkowski, T. Summerscales, L. Bogue, Joseph D. Romano, Morag M. Casey, M. Heurs, Kasem Mossavi, Patrick Brady, J. Greenhalgh, M. V. Plissi, Matthew Evans, Yi Pan, M. Varvella, A. C. Melissinos, Eric Howell, S. Saraf, M. Sung, Jong H. Chow, Hartmut Grote, T. D. Creighton, David Crooks, H. Ward, Peter King, S. Klimenko, N. Fotopoulos, Michael Landry, Maria Alessandra Papa, Evan Goetz, V. Mandic, N. A. Robertson, A. Bullington, K. Kawabe, Michael C. B. Ashley, John Veitch, Sascha Schediwy, Shuhei Yoshida, Peter Kalmus, M. MacInnis, R. S. Amin, Carlo Ungarelli, Peter H. Sneddon, B. Lantz, I. Wilmut, R. McCarthy, S. Vass, A. Ivanov, Daniel Sigg, Roger Jones, S. M. Aston, R. M. S. Schofield, Pablo Barriga, Benjamin J. Owen, N. A. Lockerbie, L. Zhang, Christopher Wipf, S. J. Waldman, Gianpietro Cagnoli, K. V. Tokmakov, A. Cumming, L. Goggin, C. A. Cantley, C. Robinson, Benjamin William Allen, Karsten Danzmann, Slawomir Gras, G. de Vine, A. M. Gretarsson, Martin Hewitson, Junwei Cao, E. Maros, R. Taylor, L. Ribichini, Brian O'Reilly, E. Messaritaki, Shantanu Desai, D. Grimmett, Sheila Rowan, Kip S. Thorne, V. P. Mitrofanov, Graham Woan, Robert L. Byer, Boris Hage, C. Cepeda, Stuart Reid, R. Ward, B. Rivera, P. J. Sutton, Ke Sun, Bernard F. Schutz, Li Ju, A. Weinstein, C. Hardham, Benno Willke, P. Shawhan, Suvadeep Bose, L. Ruet, Keisuke Goda, D. Webber, Alessandra Buonanno, Guido Mueller, H. Radkins, R. Burman, Erik Katsavounidis, Alberto Vecchio, D. Jackrel, T. Etzel, V. Parameshwaraiah, Vladimir B. Braginsky, H. Vahlbruch, K. Riles, B. C. Barish, Yousuke Itoh, D. Barker, Roman Schnabel, J. E. Brau, T. Evans, L. Cardenas, Subhasish Mitra, J. Markowitz, W. Wu, P. T. Beyersdorf, R.L. Coldwell, A. Grant, S. E. Whitcomb, B. Johnson, and The LIGO Scientific Collaboration
Subjects: Physics, Gravitational-wave observatory, 010308 nuclear & particles physics, Gravitational wave, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Gravitational-wave astronomy, LIGO, Cosmic string, Interferometry, General Relativity and Quantum Cosmology, Space and Planetary Science, Observatory, 0103 physical sciences, Astronomical interferometer, 010306 general physics, QC, QB
Abstract: The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90% upper limit is Ω_(GW) × [H_0/(72 km s^(−1) Mpc^(−1))]^2 < 6.5 × 10^(-5). This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.
Published: 2007

24. Reconstruction of source location in a network of gravitational wave interferometric detectors

Author: A.-C. Clapson, Nicolas Leroy, M. Barsuglia, S. Kreckelbergh, Marie-Anne Bizouard, Patrice Hello, F. Cavalier, V. Brisson, M. Davier, M. Varvella, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and VIRGO
Subjects: Nuclear and High Energy Physics, Network Data Analysis, Physics::Instrumentation and Detectors, media_common.quotation_subject, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Coincidence, Optics, 0103 physical sciences, Reconstruction of Source Direction, Angular resolution, LIGO, 010306 general physics, media_common, Gravitational Waves, Physics, 010308 nuclear & particles physics, business.industry, Gravitational wave, Virgo, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Filter (signal processing), 04.80.Nn, 07.05.Kf, Interferometry, Sky, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], High Energy Physics::Experiment, business
Abstract: This paper deals with the reconstruction of the direction of a gravitational wave source using the detection made by a network of interferometric detectors, mainly the LIGO and Virgo detectors. We suppose that an event has been seen in coincidence using a filter applied on the three detector data streams. Using the arrival time (and its associated error) of the gravitational signal in each detector, the direction of the source in the sky is computed using a chi^2 minimization technique. For reasonably large signals (SNR>4.5 in all detectors), the mean angular error between the real location and the reconstructed one is about 1 degree. We also investigate the effect of the network geometry assuming the same angular response for all interferometric detectors. It appears that the reconstruction quality is not uniform over the sky and is degraded when the source approaches the plane defined by the three detectors. Adding at least one other detector to the LIGO-Virgo network reduces the blind regions and in the case of 6 detectors, a precision less than 1 degree on the source direction can be reached for 99% of the sky., Accepted in Phys. Rev. D
Published: 2006

25. Measurement of optical response of a detuned resonant sideband extraction gravitational wave detector

Author: M. Varvella, Shihori Sakata, Matthew Evans, R. L. Ward, S. Vass, Seiji Kawamura, J. Heefner, Fumiko Kawazoe, Osamu Miyakawa, Robert Taylor, Michael Smith, R. Bork, B. P. Abbott, D. Busby, Alexander Ivanov, Rana X. Adhikari, C. M. Mow-Lowry, and Alan J. Weinstein
Subjects: Physics, Nuclear and High Energy Physics, Atom interferometer, Gravitational-wave observatory, Sideband, 010308 nuclear & particles physics, business.industry, Gravitational wave, Physics::Optics, Resonance, 01 natural sciences, LIGO, Interferometry, Optics, Radiation pressure, 0103 physical sciences, 010306 general physics, business, Caltech Library Services
Abstract: We report on the optical response of a suspended-mass detuned resonant sideband extraction (RSE) interferometer with power recycling. The purpose of the detuned RSE configuration is to manipulate and optimize the optical response of the interferometer to differential displacements (induced by gravitational waves) as a function of frequency, independently of other parameters of the interferometer. The design of our interferometer results in an optical gain with two peaks: an RSE optical resonance at around 4 kHz and a radiation pressure induced optical spring at around 41 Hz. We have developed a reliable procedure for acquiring lock and establishing the desired optical configuration. In this configuration, we have measured the optical response to differential displacement and found good agreement with predictions at both resonances and all other relevant frequencies. These results build confidence in both the theory and practical implementation of the more complex optical configuration being planned for Advanced LIGO.
Published: 2006

26. Time-domain model for advanced LIGO interferometer

Author: M. Varvella
Subjects: Physics, Interferometry, Atom interferometer, Record locking, Gravitational wave, Process (computing), Electronic engineering, Degrees of freedom (mechanics), Mach–Zehnder interferometer, LIGO
Abstract: A time-domain model for AdvLIGO interferometer has been implemented using LIGO End to End simulation framework. AdvLIGO interferometer configuration is a dual-recycled Fabry-Perot Michelson. The system is highly complex: it requires a good understanding in the control of the microscopic positions of seven mirrors to keep five strongly-coupled interferometric degrees of freedom at their working point. The transition from the uncontrolled to the controlled state (lock acquisition) necessitates a time-domain simulation to understand and guide the lock acquisition process using fast feedback systems. A productive interplay between simulation and experiment is required to achieve a good result. AdvLIGO interferometer is not yet ready but its configuration will be tested at CalTech's 40 m laboratory in the near future, as it is the closest experiment to AdvLIGO. The time-domain model is built-up using macros to define IFO parameters: in this way one is able to switch easily between the 40 m configuration and the Advanced LIGO configuration.
Published: 2005

27. A gravitational wave burst search method based on the S transform

Author: Marie-Anne Bizouard, V. Brisson, M. Varvella, M. Barsuglia, Patrice Hello, A.-C. Clapson, Stéphane Kreckelberg, F. Cavalier, M. Davier, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and VIRGO
Subjects: Physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Gravitational wave, business.industry, Gaussian, Bilinear time–frequency distribution, 04.80.Nn, 07.05.Kf, 01 natural sciences, Time–frequency analysis, symbols.namesake, Event structure, Optics, 0103 physical sciences, symbols, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Waveform, 010306 general physics, business, S transform, Algorithm, Energy (signal processing)
Abstract: The detection of burst-type events in the output of ground gravitational wave observatories is particularly challenging due to the expected variety of astrophysical waveforms and the issue of discriminating them from instrumental noise. Robust methods, that achieve reasonable detection performances over a wide range of signals, would be most useful. We present a burst-detection pipeline based on a time–frequency transform, the S transform. This transform offers good time–frequency localization of energy without requiring prior knowledge of the event structure. We set a simple (and robust) event extraction chain. Results are provided for a variety of signals injected in simulated Gaussian statistics data (from the LIGO–Virgo joint working group). Indications are that detection is robust with respect to event type and that efficiency compares reasonably with reference methods. The time–frequency representation is shown to be affected by spectral features such as resonant lines. This emphasizes the role of pre-processing.
Published: 2005

28. FEASIBILITY OF A MAGNETIC SUSPENSION FOR GRAVITATIONAL WAVE INTERFEROMETRIC DETECTORS

Author: L. Milano, Nicolas Arnaud, M. Varvella, L. di Fiore, Enrico Calloni, Varvella, M, Calloni, Enrico, Di Fiore, L, Milano, L, and Arnaud, N.
Subjects: Physics, Interferometry, Classical mechanics, Optics, business.industry, Gravitational wave, Electrodynamic suspension, Detector, Levitation, Electromagnetic suspension, business, Spin-stabilized magnetic levitation, Magnetic levitation
Published: 2004

29. GRAVITATIONAL LENSING AS A TOOL TO DETECT GRAVITATIONAL WAVES: IS THE SIGNAL AMPLIFICATION INTERESTING FOR DETECTION?

Author: M. C. Angonin, Ph. Tourrenc, and M. Varvella
Subjects: Physics, Gravitational-wave observatory, Gravitational lens, Gravitational wave, Gravitational lensing formalism, Strong gravitational lensing, Astronomy, Astrophysics, Signal amplification, Weak gravitational lensing, Gravitational redshift
Published: 2004

30. The Virgo Suspensions

Author: J. Ramonet, Samuele Cortese, L. Milano, H. Vocca, M. Yvert, Teimuraz Lomtadze, D. Passuello, Thierry Pradier, R. Bilhaut, A. Viceré, M. Gaspard, H. Fang, Ph. Heusse, P. Canitrot, N. Arnaud, P. Rapagnani, F. Garufi, R. De Rosa, C. Arnault, J. L. Beney, F. Frasconi, A. Di Virgilio, L. Giacobone, R. Sottile, B. Mansoux, A. Masserot, P. Amico, G. Cella, P. Ganau, Fausto Acernese, R. Flaminio, B. Mours, P. La Penna, M. Leliboux, A. Errico, F. Marion, M. Punturo, M. Varvella, A. Bozzi, C. Girard, B. Caron, V. Loriette, C. N. Man, J. Y. Vinet, L. Pinard, F. Fidecaro, M. Iannarelli, M. Dehamme, L. Holloway, T. Regimbau, P. Dominici, Thomas Cokelaer, F. Bellachia, G. M. Guidi, Angela Delli Paoli, Ciro Cattuto, F. Martelli, C. Bradaschia, Marina Mazzoni, S. Mataguez, F. Paoletti, D. Buskulic, F. Cavalier, J. L. Montorio, J. M. Innocent, Zhenyu Zhang, R. Passaquieti, A. Giazotto, José Pacheco, J. M. Teuler, I. Ferrante, L. Nicolosi, S. Cuzon, C. Michel, G. Ballardin, Sergio Cavaliere, A. Reboux, V. Brisson, H. Heitmann, M. Mencik, S. Braccini, N. Morgado, M. De Rosa, J. P. Roger, R. Hermel, Luisa Bracci, O. Lodygenski, H. Trinquet, F. Chollet, J.-M. Mackowski, F. Cleva, Roberto Cecchi, A. Eleuteri, G. Giordano, C. Bourgoin, J. C. Marrucho, Fabrizio Barone, Ettore Majorana, D. Enard, M. Loupias, D. Dufournaud, E. Jules, E. Turri, P. Puppo, Maurizio Ripepe, Enrico Calloni, M. Davier, P. Tourrenc, G. Calamai, Gianpaolo Evangelista, B. Lieunard, L. Di Fiore, M. Barsuglia, Luca Gammaitoni, G. Losurdo, V. Dattilo, A. Brillet, S. Frasca, M. Taurigna, Alban Remillieux, D. Verkindt, P. Popolizio, L. Massonnet, Fabio Marchesoni, R. Taddei, P. Mugnier, L. Fournier, Patrice Hello, J. Cachenaut, V. Reita, G. Gennaro, François Bondu, P. Rivoirard, M. Perciballi, D. Boget, P. Marin, C. Casciano, C. Eder, L. Fabbroni, Marie-Anne Bizouard, A. Pasqualetti, C. Palomba, F. Ricci, Ketevan Qipiani, E. Cuoco, F. Richard, Claude Boccara, Rosa Poggiani, R. Chiche, F. Vetrano, P. N. Y. David, Salvatore Solimeno, R. Cavalieri, J.-P. Coulon, J.-D. Fournier, D. Babusci, J. C. Lacotte, Ruggero Stanga, J. P. Scheidecker, O. Veziant, and B. Lagrange
Subjects: Physics, business.product_category, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), business.industry, Payload, Seismic noise, Interferometry, Optics, Control system, Six degrees of freedom, business, Suspension (vehicle), Beam (structure), Digital camera
Abstract: The VIRGO suspensions are chains of passive mechanical filters designed to isolate the interferometer mirrors from seismic noise starting from a few Hz. In order to reduce the low-frequency swing of the mirror along the beam, an active control system, acting at the level of the suspension point, damps the main resonant modes of the system (all below 2.5 Hz). Another control loop, at the level of the optical payload, makes use of a digital camera monitoring the mirror position in all six degrees of freedom. Its main goal is to decrease the rms angular displacements of the mirror, on a time scale of several minutes, down to less than 1 μrad. All the seven suspensions of the VIRGO central interferometer are presently in operation, while the assembly of the last two, for the terminal mirrors, is in progress. The design and performance of the system are described in this paper. PACS number: 0480N (Some figures in this article are in colour only in the electronic version)
Published: 2002

31. Status of VIRGO

Author: The VIRGO Collaboration, F Acernese, P Amico, N Arnaud, D Babusci, G Ballardin, R Barill, F Barone, M Barsuglia, F Beauville, F Bellachia, M A Bizouard, C Boccara, D Boget, F Bondu, C Bourgoin, A Bozzi, S Braccini, C Bradaschia, A Brillet, V Brisson, L Brocco, D Buskulic, J Cachenaut, G Calamai, E Calloni, E Campagna, C Casciano, C Cattuto, F Cavalier, S Cavaliere, R Cavalieri, G Cella, E Chassande-Mottin, F Chollet, F Cleva, T Cokelaer, G Conforto, S Cortese, J P Coulon, E Cuoco, V Dattilo, P Y Dav d, M Davier, M De Rosa, R De Rosa, L Di Fiore, A Di Virgilio, B Dujardin, P Dominici, A Eleuteri, D Enard, G Evangelista, I Ferrante, F Fidecaro, I Fiori, R Flaminio, D Forest, J D Fournier, L Fournier, S Frasca, F Frasconi, L Gammaitoni, P Ganau, A Gennai, G Gennaro, L Giacobone, A Giazotto, G Giordano, C Girard, G Gougoulat, G M Guidi, H Heitmann, P Hello, R Hermel, P Heusse, L Holloway, F Honglie, M Iannarelli, L Journet, S Krecklbergh, B Lagrange, P La Penna, M Leliboux, B Lieunard, T Lomtadze, V Loriette, G Losurdo, M Loupias, J M Mackowski, E Majorana, C N Man, F Marchesoni, F Marion, F Martelli, A Masserot, L Massonnet, S Mataguez, F Menzinger, M Mazzoni, C Michel, L Milano, J L Montorio, F Moreau, J Moreau, N Morgado, F Mornet, B Mours, P Mugnier, F Nenci, J Pacheco, A Pai, C Palomba, F Paoletti, A Paoli, L Paoli, A Pasqualetti, R Passaquieti, D Passuello, M Perciballi, S Peruzzi, B Perniola, L Pinard, R Poggiani, P Popolizio, E Porter, S Puccinelli, M Punturo, P Puppo, K Qipiani, J Ramonet, P Rapagnani, V Reita, A Remillieux, F Ricci, F Richard, J P Roger, P Ruggi, G Russo, S Solimeno, R Stanga, R Taddei, J M Teuler, E Tournefier, F Travasso, H Trinquet, E Turri, M Varvella, D Verkindt, F Vetrano, O Veziant, A Vicer, S Vilalte, J Y Vinet, H Vocca, M Yvert, and Z Zhang
Subjects: Physics and Astronomy (miscellaneous), Onde gravitazionali, interferometri, astrofisica

32. Status of VIRGO

Author: Acernese, Fausto, Amico, P., Arnaud, N., Babusci, D., Barillé, R., Barone, Fabrizio, Barsotti, L., Barsuglia, M., Beauville, F., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Bracci, L., Braccini, S., Brillet, A., Brisson, V., Brocco, L., Buskulic, D., Calamai, G., Calloni, E., Campagna, E., Cavalier, F., Cella, G., Chassande Mottin, E., Cleva, F., Cokelaer, T., Conforto, G., Corda, C., Coulon, J. P., Cuoco, E., Dattilo, V., Davier, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Enard, D., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, S., Frasconi, F., Gammaitoni, L., Gennai, A., Giazotto, A., Giordano, G., Guidi, G., Heitmann, H., Hello, P., Heusse, P., Holloway, L., Kreckelberg, S., La Penna, P., Loriette, V., Loupias, M., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Marion, F., Martelli, F., Masserot, A., Massonnet, L., Mazzoni, M., Milano, L., Moreau, J., Moreau, F., Morgado, N., Mornet, F., Mours, B., Pacheco, J., Pai, A., Palomba, C., Paoletti, F., Passaquieti, R., Passuello, D., Perniola, B., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Ramonet, J., Rapagnani, P., Reita, V., Remillieux, A., Ricci, F., Ricciardi, I., Russo, G., Solimeno, S., Stanga, R., Toncelli, A., Tonelli, M., Tournefier, E., Travasso, F., Trinquet, H., Varvella, M., Verkindt, D., Vetrano, F., Veziant, O., Viceré, A., Vinet, J. Y., Vocca, H., Yvert, M., F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelberg, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, L., Milano, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, S., Solimeno, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Gravitational wave detectors and experiments, Interferometers, Physics and Astronomy (miscellaneous)
Published: 2004

33. Search for inspiralling binary events in the Virgo Engineering Run data

Author: Acernese, F., Amico, P., Alshourbagy, M., Antonucci, F., Aoudia, S., Astone, P., Avino, S., Babusci, D., Ballardin, G., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bigotta, S., Birindelli, S., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Buskulic, D., Calloni, E., Campagna, E., Carbognani, F., Cavalier, F., Cavalieri, R., Cella, G., Cesarini, E., Chassande Mottin, E., Christensen, N., Corda, C., Corsi, A., Cottone, F., Clapson, A. C., Cleva, F., Coulon, J. P., Cuoco, E., Dari, A., Dattilo, V., Davier, M., Del Prete, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, Sergio, Frasconi, F., Gammaitoni, L., Garufi, F., Genin, E., Gennai, A., Giazotto, A., Giordano, G., Giordano, L., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Karkar, S., Kreckelbergh, S., La Penna, P., Laval, M., Leroy, N., Letendre, N., Lopez, B., Lorenzini, M., Loriette, V., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Mantovani, M., Marchesoni, F., Marion, F., Marque, J., Martelli, F., Masserot, A., Mazzoni, M., Milano, L., Menzinger, F., Moins, C., Moreau, J., Morgado, N., Mours, B., Nocera, F., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, Piero, Reita, V., Remillieux, A., Ricci, Fulvio, Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Tarallo, M., Tonelli, M., Toncelli, A., Tournefier, E., Travasso, F., Tremola, C., Gabriele, Vajente, Verkindt, D., Vetrano, F., Vicere, A., Vinet, J. Y., Vocca, H., Yvert, M., F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, L., Milano, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, S., Solimeno, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Data Analysis, Physics, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), Gravitational wave, Matched filter, Binary number, Value (computer science), Astrophysics, Interferometry, Simulated data, Range (statistics), Sensitivity (control systems), Algorithm
Abstract: We report preliminary results of a search for inspiralling binary events, performed on data produced by the Virgo Central Interferometer during the Engineering 4 run. Given the limited sensitivity to gravitational waves, the goal was to test some of the analysis chain elements and their integration. The search method was the matched filtering, supplemented by a χ2 based method for the rejection of non-Gaussian events. The range of masses explored was [2–5] M⊙, while the frequency range considered was [24–1000] Hz. The algorithm was preliminarily tested on simulated data. On real E4 data, candidates were selected by the matched filter when the return SNR value was greater than 7; none of them survived the χ2 test. Further, it was possible to put in correspondence the candidates with precise external disturbances in the apparatus.
Published: 2004

34. The Commissioning of the Central Interferometer of the Virgo gravitational waves detector

Author: Acernese, F., Amico, P., Alshourbagy, M., Antonucci, F., Aoudia, S., Astone, P., Avino, S., Babusci, D., Ballardin, G., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bigotta, S., Birindelli, S., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Buskulic, D., Calloni, E., Campagna, E., Carbognani, F., Cavalier, F., Cavalieri, R., Cella, G., Cesarini, E., Chassande Mottin, E., Christensen, N., Corda, C., Corsi, A., Cottone, F., Clapson, A. C., Cleva, F., Coulon, J. P., Cuoco, E., Dari, A., Dattilo, V., Davier, M., Del Prete, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, Sergio, Frasconi, F., Gammaitoni, L., Garufi, F., Genin, E., Gennai, A., Giazotto, A., Giordano, G., Giordano, L., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Karkar, S., Kreckelbergh, S., La Penna, P., Laval, M., Leroy, N., Letendre, N., Lopez, B., Lorenzini, M., Loriette, V., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Mantovani, M., Marchesoni, F., Marion, F., Marque, J., Martelli, F., Masserot, A., Mazzoni, M., Milano, L., Menzinger, F., Moins, C., Moreau, J., Morgado, N., Mours, B., Nocera, F., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, Piero, Reita, V., Remillieux, A., Ricci, Fulvio, Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Tarallo, M., Tonelli, M., Toncelli, A., Tournefier, E., Travasso, F., Tremola, C., Gabriele, Vajente, Verkindt, D., Vetrano, F., Vicere, A., Vinet, J. Y., Vocca, H., Yvert, M., Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des matériaux avancés (LMA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, VIRGO, F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, L., Bracci, S., Braccini, C., Bradaschia, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, G., Losurdo, M., Loupia, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, Milano, Leopoldo, F., Moreau, J., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, M., Yvert, and Flores, Sylvie
Subjects: virgo, Gravitational-wave observatory, Gravitational wave detectors and experiments, Frequency band, interferometer, Intensity interferometer, [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph], 01 natural sciences, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Optics, Interferometers, law, 0103 physical sciences, Astronomical interferometer, commissioning, 010306 general physics, 010303 astronomy & astrophysics, gravitational wave detector, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], business.industry, Gravitational wave, Detector, Michelson interferometer, Astronomy and Astrophysics, Interferometry, [PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], business
Abstract: Virgo is a laser Michelson interferometer with 3-km long Fabry–Perot in the arms, aiming at the detection of gravitational waves emitted by astrophysical sources in the frequency band from 10 Hz to few kHz. The core of the detector, the central interferometer, was installed first. It is a recycled Michelson interferometer, with 6-m long arms, obtained by replacing the 3-km long Fabry–Perot cavities with high reflectivity mirrors and using the same components designed for Virgo. In particular all the mirrors of the interferometer are suspended from the seismic isolators that represent the main unique characteristic of the Virgo detector. The interferometer has been controlled by means of a fully digital control system, capable of monitoring and controlling the relative position of the mirrors with an accuracy of 10 −12 m. The best displacement sensitivity was 10 −13 m/√Hz at 10 Hz and 8 × 10 −17 m/√Hz above 1 kHz. This article describes the detector configuration, the tests performed in view of commissioning the full detector and the main results obtained.
Published: 2004

35. A local control system for the test masses of the Virgo gravitational wave detector

Author: Acernese, F., Amico, P., Alshourbagy, M., Antonucci, F., Aoudia, S., Astone, P., Avino, S., Babusci, D., Ballardin, G., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bigotta, S., Birindelli, S., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Buskulic, D., Calloni, E., Campagna, E., Carbognani, F., Cavalier, F., Cavalieri, R., Cella, G., Cesarini, E., CHASSANDE MOTTIN, E., Christensen, N., Corda, C., Corsi, A., Cottone, F., Clapson, A. C., Cleva, F., Coulon, J. P., Cuoco, E., Dari, A., Dattilo, V., Davier, M., DEL PRETE, M., DE ROSA, R., DI FIORE, L., DI VIRGILIO, A., Dujardin, B., Eleuteri, A., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, Sergio, Frasconi, F., Gammaitoni, L., Garufi, F., Genin, E., Gennai, A., Giazotto, A., Giordano, G., Giordano, L., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Karkar, S., Kreckelbergh, S., LA PENNA, P., Laval, M., Leroy, N., Letendre, N., Lopez, B., Lorenzini, M., Loriette, V., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Mantovani, M., Marchesoni, F., Marion, F., Marque, J., Martelli, F., Masserot, A., Mazzoni, M., Milano, L., Menzinger, F., Moins, C., Moreau, J., Morgado, N., Mours, B., Nocera, F., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, Piero, Reita, V., Remillieux, A., Ricci, Fulvio, Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Tarallo, M., Tonelli, M., Toncelli, A., Tournefier, E., Travasso, F., Tremola, C., Gabriele, Vajente, Verkindt, D., Vetrano, F., Vicere, A., Vinet, J. Y., Vocca, H., Yvert, M., F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, L., Milano, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Physics, Gravitational wave detectors and experiments, Gravitational-wave observatory, Gravitational wave, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Seismic isolation, Astronomy and Astrophysics, Astrophysics, Lock (computer science), Interferometry, Digital control systems, Optics, Control system, Digital control, Suspension (vehicle), business
Abstract: The mirrors of interferometric detectors of gravitational waves (GW) are suspended in order to be isolated from external disturbances. A local control system able to keep them correctly aligned and to damp the angular modes of the suspension is necessary. In this paper we present the solution adopted for Virgo based on a CCD camera sensor and on digital controls. With this solution the mirrors are kept aligned at the level of less than 1 μrad rms, enough to lock the interferometer and start the automatic alignment system.
Published: 2004

36. Results of the Virgo central interferometer commissioning

Author: Acernese, F., Amico, P., Alshourbagy, M., Antonucci, F., Aoudia, S., Astone, P., Avino, S., Babusci, D., Ballardin, G., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bigotta, S., Birindelli, S., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Buskulic, D., Calloni, E., Campagna, E., Carbognani, F., Cavalier, F., Cavalieri, R., Cella, G., Cesarini, E., CHASSANDE MOTTIN, E., Christensen, N., Corda, C., Corsi, A., Cottone, F., Clapson, A. C., Cleva, F., Coulon, J. P., Cuoco, E., Dari, A., Dattilo, V., Davier, M., DEL PRETE, M., DE ROSA, R., DI FIORE, L., DI VIRGILIO, A., Dujardin, B., Eleuteri, A., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, Sergio, Frasconi, F., Gammaitoni, L., Garufi, F., Genin, E., Gennai, A., Giazotto, A., Giordano, G., Giordano, L., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Karkar, S., Kreckelbergh, S., LA PENNA, P., Laval, M., Leroy, N., Letendre, N., Lopez, B., Lorenzini, M., Loriette, V., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Mantovani, M., Marchesoni, F., Marion, F., Marque, J., Martelli, F., Masserot, A., Mazzoni, M., Milano, L., Menzinger, F., Moins, C., Moreau, J., Morgado, N., Mours, B., Nocera, F., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, Piero, Reita, V., Remillieux, A., Ricci, Fulvio, Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Tarallo, M., Tonelli, M., Toncelli, A., Tournefier, E., Travasso, F., Tremola, C., Gabriele, Vajente, Verkindt, D., Vetrano, F., Vicere, A., Vinet, J. Y., Vocca, H., Yvert, M., F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barillé, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, G., Conforto, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, Milano, Leopoldo, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Viceré, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Physics, Gravitational wave detectors and experiments, Physics and Astronomy (miscellaneous), Interferometers, business.industry, Vacuum tube, Michelson interferometer, Noise (electronics), law.invention, Interferometry, Data acquisition, Optics, law, Duty cycle, Astronomical interferometer, Interferometric gravitational wave detector, business
Abstract: The interferometric gravitational wave detector Virgo has successfully completed the first major step of its commissioning. It consists of a Michelson interferometer with 6 m arms with suspended mirrors. The interferometer is tuned to the dark fringe with a recycling mirror on the other port (bright fringe) to form an equivalent 12 m long Fabry-Perot cavity. This setup has allowed us to validate the major technology choices that have been made: passive seismic attenuators, a light source with a long mode cleaner, many analogue and digital servo loops, control software, high speed data acquisition system. A sensitivity of 8 x 10 -17 m Hz -1/2 at 1 kHz together with a duty cycle of 80% has been attained during a 72 h engineering run. The data analysis allowed us to understand the noise contributions, and several improvements have been carried out while prcceeding with the end of the installation of vacuum tubes and the remaining suspensions, and before starting the commissioning of the 3 km long Fabry-Perot cavities.
Published: 2004

37. Lock acquisition of the central interferometer of the gravitational wave detector Virgo

Author: Acernese, F., Amico, P., Alshourbagy, M., Antonucci, F., Aoudia, S., Astone, P., Avino, S., Babusci, D., Ballardin, G., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bigotta, S., Birindelli, S., Bizouard, M. A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Buskulic, D., Calloni, E., Campagna, E., Carbognani, F., Cavalier, F., Cavalieri, R., Cella, G., Cesarini, E., Chassande Mottin, E., Christensen, N., Corda, C., Corsi, A., Cottone, F., Clapson, A. C., Cleva, F., Coulon, J. P., Cuoco, E., Dari, A., Dattilo, V., Davier, M., Del Prete, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J. D., Frasca, Sergio, Frasconi, F., Gammaitoni, L., Garufi, F., Genin, E., Gennai, A., Giazotto, A., Giordano, G., Giordano, L., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Karkar, S., Kreckelbergh, S., La Penna, P., Laval, M., Leroy, N., Letendre, N., Lopez, B., Lorenzini, M., Loriette, V., Losurdo, G., Mackowski, J. M., Majorana, E., Man, C. N., Mantovani, M., Marchesoni, F., Marion, F., Marque, J., Martelli, F., Masserot, A., Mazzoni, M., Milano, L., Menzinger, F., Moins, C., Moreau, J., Morgado, N., Mours, B., Nocera, F., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, Piero, Reita, V., Remillieux, A., Ricci, Fulvio, Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Tarallo, M., Tonelli, M., Toncelli, A., Tournefier, E., Travasso, F., Tremola, C., Gabriele, Vajente, Verkindt, D., Vetrano, F., Vicere, A., Vinet, J. Y., Vocca, H., Yvert, M., F., Acernese, P., Amico, N., Arnaud, D., Babusci, R., Barille, F., Barone, L., Barsotti, M., Barsuglia, F., Beauville, M. A., Bizouard, C., Boccara, F., Bondu, L., Bosi, C., Bradaschia, L., Bracci, S., Braccini, A., Brillet, V., Brisson, L., Brocco, D., Buskulic, G., Calamai, Calloni, Enrico, E., Campagna, F., Cavalier, G., Cella, E., Chassande Mottin, F., Cleva, T., Cokelaer, C., Corda, J. P., Coulon, E., Cuoco, V., Dattilo, M., Davier, DE ROSA, Rosario, L., Di Fiore, A., Di Virgilio, B., Dujardin, A., Eleuteri, D., Enard, I., Ferrante, F., Fidecaro, I., Fiori, R., Flaminio, J. D., Fournier, S., Frasca, F., Frasconi, L., Gammaitoni, A., Gennai, A., Giazotto, G., Giordano, G., Guidi, H., Heitmann, P., Hello, P., Heusse, L., Holloway, S., Kreckelbergh, P., La Penna, V., Loriette, M., Loupia, G., Losurdo, J. M., Mackowski, E., Majorana, C. N., Man, F., Marion, F., Martelli, A., Masserot, L., Massonnet, M., Mazzoni, Milano, Leopoldo, J., Moreau, F., Moreau, N., Morgado, F., Mornet, B., Mour, J., Pacheco, A., Pai, C., Palomba, F., Paoletti, R., Passaquieti, D., Passuello, B., Perniola, L., Pinard, R., Poggiani, M., Punturo, P., Puppo, K., Qipiani, J., Ramonet, P., Rapagnani, V., Reita, A., Remillieux, F., Ricci, I., Ricciardi, Russo, Guido, Solimeno, Salvatore, R., Stanga, A., Toncelli, M., Tonelli, E., Tournefier, F., Travasso, H., Trinquet, M., Varvella, D., Verkindt, F., Vetrano, O., Veziant, A., Vicerè, J. Y., Vinet, H., Vocca, and M., Yvert
Subjects: Physics, Gravitational-wave observatory, Record locking, business.industry, interferometer, Detector, Astronomy and Astrophysics, Interferometry, Optics, Control system, Astronomical interferometer, control systems, gravitational waves detectors, servo and control equipment, Time domain, business
Abstract: We present the lock acquisition algorithm used for the central interferometer of the gravitational wave detector Virgo (CITF). The CITF was a preliminary step in the construction of the Virgo detector, which allowed to test the main components of the instrument. The problems related to the lock acquisition are discussed, together with the key points of the algorithm. Computer simulation in the time domain of the detector was crucial to develop and test the algorithm. A comparison between simulation of the lock acquisition and the corresponding experimental results is shown.
Published: 2004

38. Last stage control and mechanical transfer function measurement of the VIRGO suspensions

Author: R. De Rosa, G. Ballardin, R. Hermel, R. Cavalieri, Gianpaolo Evangelista, R. Passaquieti, B. Lieunard, J.-P. Coulon, A. Giazotto, J.-D. Fournier, M. Davier, I. Ferrante, J. Ramonet, C. Arnault, A. Di Virgilio, Luca Gammaitoni, L. Pinard, F. Bellachia, M. Leliboux, C. Girard, M. Loupias, F. Vetrano, C. Palomba, S. Frasca, P. N. Y. David, M. Varella, Angela Delli Paoli, Ciro Cattuto, C. N. Man, J. Y. Vinet, H. Vocca, F. Martelli, Marina Mazzoni, Claude Boccara, Zhenyu Zhang, F. Fidecaro, G. M. Guidi, P. Puppo, Maurizio Ripepe, F. Richard, H. Heitmann, M. Mencik, L. Giacobone, F. Paoletti, José Pacheco, A. Bozzi, F. Garufi, F. Ricci, J. C. Lacotte, S. Mataguez, L. Di Fiore, Roberto Cecchi, M. Iannarelli, N. Morgado, M. Barsuglia, Rosa Poggiani, R. Chiche, D. Buskulic, E. Jules, Teimuraz Lomtadze, H. Fang, F. Chollet, J.-M. Mackowski, R. Sottile, B. Mours, M. Punturo, F. Cavalier, G. Cella, Sergio Cavaliere, B. Mansoux, A. Masserot, J. M. Innocent, Thierry Pradier, A. Eleuteri, V. Loriette, J. P. Scheidecker, D. Enard, M. Perciballi, O. Veziant, G. Gennaro, P. Marin, C. Eder, M. Yvert, L. Massonnet, Ketevan Qipiani, Ruggero Stanga, J. L. Montorio, E. Cuoco, B. Lagrange, R. Bilhaut, L. Holloway, D. Passuello, J. L. Beney, F. Marion, M. A. Bizouard, B. Caron, M. Gaspard, A. Viceré, P. Amico, P. La Penna, A. Reboux, Thomas Cokelaer, Fabio Marchesoni, P. Hello, D. Boget, J. P. Roger, M. De Rosa, Fabrizio Barone, R. Taddei, H. Trinquet, Salvatore Solimeno, G. Giordano, P. Ganau, D. Babusci, P. Tourrenc, G. Calamai, L. Fabbroni, G. Losurdo, Alban Remillieux, L. Milano, S. Cuzon, Ettore Majorana, D. Verkindt, Samuele Cortese, M. Taurigna, J. Cachenaut, P. Mugnier, V. Reita, L. Fournier, A. Pasqualetti, F. Frasconi, François Bondu, P. Rivoirard, R. Flaminio, Fausto Acernese, A. Errico, T. Regimbau, Ph. Heusse, M. Maiorino, V. Brisson, P. Canitrot, N. Arnaud, P. Rapagnani, J. M. Teuler, L. Nicolosi, C. Michel, Luisa Bracci, P. Popolizio, O. Lodygenski, F. Cleva, C. Bourgoin, M. Dehamme, P. Dominici, J. C. Marrucho, C. Bradaschia, D. Dufournaud, Enrico Calloni, E. Turri, S. Braccini, V. Dattilo, A. Brillet, C. Casciano, A., Bozzi, C., Bourgoin, S., Cortese, A., Errico, D., Enard, S., Mataguez, A., Paoli, A., Pasqualetti, P., Popolizio, F., Richard, J. M., Teuler, Z., Zhang, C., Boccara, M., Leliboux, V., Loriette, V., Reita, J. P., Roger, P., Ganau, B., Lagrange, J. M., Mackowski, C., Michel, J. L., Montorio, N., Morgado, L., Pinard, A., Remillieux, L., Bracci, G., Calamai, E., Cuoco, P., Dominici, L., Fabbroni, G., Guidi, G., Losurdo, F., Martelli, M., Mazzoni, M., Ripepe, R., Stanga, F., Vetrano, F., Acernese, F., Barone, Calloni, Enrico, S., Cavaliere, M., DE ROSA, DE ROSA, Rosario, L., DI FIORE, A., Eleuteri, G., Evangelista, Garufi, Fabio, M., Maiorino, L., Milano, K., Qipiani, S., Solimeno, M., Varvella, P., Amico, C., Cattuto, L., Gammaitoni, F., Marchesoni, M., Punturo, H., Vocca, G., Ballardin, S., Braccini, C., Bradaschia, C., Casciano, R., Cavalieri, R., Cecchi, G., Cella, V., Dattilo, A., DI VIRGILIO, I., Ferrante, F., Fidecaro, F., Frasconi, G., Gennaro, A., Giazotto, L., Holloway, P., LA PENNA, T., Lomtadze, L., Nicolosi, F., Paoletti, R., Passaquieti, D., Passuello, R., Poggiani, R., Taddei, A., Vicere, S., Frasca, E., Majorana, C., Palomba, M., Perciballi, P., Puppo, P., Rapagnani, F., Ricci, N., Arnaud, C., Arnault, M., Barsuglia, J. L., Beney, R., Bilhaut, M. A., Bizouard, V., Brisson, P., Canitrot, F., Cavalier, R., Chiche, S., Cuzon, M., Davier, M., Dehamme, C., Eder, M., Gaspard, P., Hello, P., Heusse, E., Jule, O., Lodygensky, B., Mansoux, J. C., Marrucho, M., Mencik, P., Marin, T., Pradier, A., Reboux, P., Rivoirard, M., Taurigna, F., Bellachia, D., Boget, D., Buskulic, B., Caron, F., Chollet, P. Y., David, D., Dufournaud, R., Flaminio, L., Fournier, L., Giacobone, C., Girard, R., Hermel, J. C., Lacotte, B., Lieunard, F., Marion, A., Masserot, L., Massonnet, B., Mour, P., Mugnier, J., Ramonet, R., Sottile, D., Verkindt, O., Veziant, M., Yvert, D., Babusci, H., Fang, G., Giordano, M., Iannarelli, E., Turri, F., Bondu, A., Brillet, J., Cachenaut, F., Cleva, T., Cokelaer, J. P., Coulon, J. D., Fournier, H., Heitmann, J. M., Innocent, M., Loupia, C. N., Man, J., Pacheco, T., Regimbau, J. P., Scheidecker, H., Trinquet, P., Tourrenc, J. Y., Vinet, Cavaliere, Sergio, and Virgo, Collaboration
Subjects: Physics, Onde gravitazionali, interferometri, sospensioni, Automatic control, Gravitational wave, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Pendulum, Transfer function, Optics, Control theory, Control system, Sensitivity (control systems), Suspension (vehicle), business, Instrumentation
Abstract: The automatic control of the suspended mirrors is a major task in operating an interferometric gravitational wave antenna. To reach the extreme sensitivity required for this kind of detector, an accurate alignment and a stable locking of the interferometer on its working point are crucial. The solution of this problem is particularly complex in the case of a multistage pendulum, such as the suspension system for seismic isolation adopted in VIRGO. A precise knowledge of the suspension mechanical transfer functions (TFs) for different forces applied in the control servo-loops represents essential information to reach the goal. In this article, we describe the apparatus we developed to measure the VIRGO suspension TF and we report the results thus obtained on full-scale suspensions at the VIRGO site. Preliminary results for the implemented control system of the last suspension stage are also presented.
Published: 2002

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