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1. Status of GEO 600

Author

Matthew Pitkin, Michael Perreur-Lloyd, I. Zawischa, V. Re, H. Welling, Peter H. Sneddon, S. Nagano, Roger Jones, H. Ward, Graham Woan, Stuart Reid, Soumya D. Mohanty, C. A. Cantley, D. I. Robertson, Gerhard Heinzel, N. A. Robertson, Walter Winkler, Harald Lück, Karsten Danzmann, Benno Willke, P. R. Williams, Bernard F. Schutz, Richard Ingley, Gianpietro Cagnoli, C. Aulbert, David Crooks, F. Seifert, C. Colacino, G. P. Newton, S. J. Berukoff, R. Schilling, Ik Siong Heng, A. Rüdiger, Carlo Ungarelli, K. Kötter, B. Machenschalk, Kenneth A. Strain, R. A. Mercer, J. H. Hough, S. Hutter, B. Barr, Sheila Rowan, R. J. Dupuis, V. Quetschke, Martin Hewitson, M. V. Plissi, Bangalore Suryanarayana Sathyaprakash, J. R. Smith, Yousuke Itoh, Hartmut Grote, V. Leonhardt, Roman Schnabel, E. J. Elliffe, Alberto Vecchio, M. Malec, Oliver Jennrich, C. I. Torrie, Jan Harms, Soma Mukherjee, A. Hepstonstall, D. Churches, Stefan Goßler, Curt Cutler, Peter Aufmuth, Carsten Fallnich, Stefan Hild, L. Ribichini, U. Weiland, Morag M. Casey, M. Heurs, Badri Krishnan, Kasem Mossavi, R. Davies, Maria Alessandra Papa, Stanislav Babak, R. Balasubramanian, Christian J. Killow, A. Grant, S. Grunewald, Ian Taylor, K. Kawabe, S. Chelkowski, C. Messenger, A. M. Sintes, and Andreas Freise

Subjects
Physics, Interferometry, Physics and Astronomy (miscellaneous), Gravitational wave, Detector, Emphasis (telecommunications), Pendulum, Baseline (configuration management), Sensitivity (electronics), Remote sensing
Abstract

The GEO 600 laser interferometer with 600 m armlength is currently being commissioned as a part of a worldwide network of gravitational wave detectors. Due to the use of advanced technologies such as signal recycling and multiple pendulum suspensions with a monolithic last stage the anticipated sensitivity of GEO 600 is close to the initial sensitivity of km baseline detectors. This paper describes the status of the detector as of November 2003 with special emphasis on its performance during the first serious data-taking periods and on the experimental challenges encountered during the commissioning of the dual-recycled detector.

Published
2004
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2. Joint LIGO and TAMA300 Search for Gravitational Waves from Inspiralling Neutron Star Binaries

Author

J. E. Brau, Subhasish Mitra, D. Churches, A. J. Weinstein, W. Wu, P. T. Beyersdorf, A. Grant, S. Liu, L. Zhang, Keisuke Goda, Erik Katsavounidis, Daisuke Tatsumi, A. Wilson, M. J. Lubinski, Vladimir B. Braginsky, K. Riles, Yousuke Itoh, Ken-ichi Nakao, A. Ageev, M. Lormand, M. Fine, K. Rawlins, A. Bunkowski, Kazuyuki Miura, J. Logan, R. K. Nayak, Rebecca Abbott, J. Heefner, Mayu Katsuki, David H. Shoemaker, R. Rahkola, Y. Hefetz, Shigemi Otsuka, Peter Fritschel, Gerhard Heinzel, C. Hardham, Hideki Ishitsuka, Hideki Asada, Jan Harms, Alberto Vecchio, Juri Agresti, A. Rizzi, S. Penn, Benno Willke, L. Ruet, Kazuaki Kuroda, Robert J. McCarthy, Linqing Wen, Pamela J. Russell, S. Richman, K. C. Cannon, A. Bullington, F. Mann, Shuichi Sato, Masaru Shibata, A. Gillespie, Oliver Jennrich, Akitoshi Ueda, L. Bogue, R. L. Savage, V. V. Frolov, Curt Cutler, Alessandra Buonanno, V. Parameshwaraiah, I. Leonor, John K. Cannizzo, T. Summerscales, S. Nagano, Yusaku Hamuro, Darby Kozak, K. A. Thorne, J. Betzwieser, M. C. Araya, D. Ugolini, Mitsuru Musha, Y. Saito, Carsten Fallnich, Yoshikazu Karasawa, R. J. Dupuis, Kiminori Kondo, C. Torres, A. Rodriguez, C. Barker, B. Johnson, Naoki Seto, D. Redding, Youhei Sato, Joseph D. Romano, C. King, Stefan Hild, N. Sato, C. A. Cantley, C. Robinson, Benjamin William Allen, Karsten Danzmann, M. C. Sumner, Shoken M. Miyama, D. Chin, Stanislav Babak, Kasem Mossavi, Walid A. Majid, Duncan A. Brown, P. Hoang, G. Traylor, Thomas Corbitt, Michael Landry, G. Billingsley, Michele Vallisneri, Ik Siong Heng, Fumiko Kawazoe, H. Tariq, Shigenori Moriwaki, J. Chapsky, S. Meshkov, Akiteru Takamori, Pankaj Sarin, D. Farnham, Akito Araya, E. J. Daw, Brent Ware, Y. Ogawa, Norikatsu Mio, G. Mendell, Soma Mukherjee, Sanichiro Yoshida, M. R. Smith, Shinji Miyoki, Graham Woan, Zong Hong Zhu, Robert L. Byer, Stuart Reid, Shihori Sakata, A. M. Gretarsson, D. Rose, C. A. Shapiro, V. Schmidt, Toru Tanji, T. Nakamura, E. Rotthoff, P. Csatorday, William E. Butler, Eugeniy E. Mikhailov, T. Findley, E. Messaritaki, Morag M. Casey, M. Heurs, D. Ouimette, C. Gray, Erika D'Ambrosio, A. Chandler, B. J. Winjum, C. Parameswariah, M. Rakhmanov, Vuk Mandic, Bernard F. Schutz, H. Yamamoto, Takaharu Kaneyama, J. W C McNabb, Laura Cadonati, Walter Winkler, Sheila Rowan, Harald Lück, G. Stapfer, Kevin M. Ryan, J. Hanson, Yoshitaka Nagayama, J. Langdale, G. P. Newton, M. Fyffe, N. A. Robertson, Ken-ichi Ueda, Sandra E. Wiley, Gabriela Gonzalez, Ken'ichi Nakagawa, Martin P McHugh, V. Re, Susan M. Scott, G. H. Sanders, R. Lawrence, M. H. P. M. van Putten, Koichi Waseda, C. Aulbert, S. Tilav, Guido Mueller, Rana X. Adhikari, Gareth Jones, H. Overmier, Roy Williams, J. A. Giaime, Katsuaki Kasahara, Eric K. Gustafson, Hideo Iguchi, Kentaro Somiya, Kenji Soida, B. Machenschalk, P. R. Williams, Takashi Kuwabara, Richard J. K. Taylor, S. Wise, D. Sellers, Teviet Creighton, S. Grunewald, Herbert Walther, Chad Hanna, K. Kötter, C. Wilkinson, Gianpietro Cagnoli, Toshikazu Suzuki, Rainer Weiss, T. Etzel, A. C. Melissinos, K. Oohara, T. T. Lyons, E. Maros, M. V. Plissi, M. Kawamura, Shantanu Desai, Kip S. Thorne, B. Lantz, K. S. Ganezer, Kouichi Sato, Albert Lazzarini, M. Coles, M. Guenther, Tomiyoshi Haruyama, R. W. P. Drever, Kenji Numata, Masaki Ando, K. Watts, Kenneth G. Libbrecht, I. Salzman, Stefan Goßler, Michael D. Smith, Marco G. Tarallo, K. T. Reilly, W. W. Johnson, J. Myers, F. Nocera, J. Allen, N. Hepler, Ryuichi Fujita, W. O. Hamilton, Scott Koranda, D. Webber, V. P. Mitrofanov, R. M. S. Schofield, C. Vorvick, A. Marin, Yoshio Nishi, Shuzo Takemoto, B. Bochner, Akira Okutomi, Hideaki Kudoh, Benjamin J. Owen, P. Schwinberg, V. Quetschke, Shourov Chatterji, W. R. Johnston, Yoshihide Kozai, Bangalore Suryanarayana Sathyaprakash, E. Black, Norihiko Kamikubota, Patrick Brady, Suvadeep Bose, Takayuki Tomaru, Masatake Ohashi, Kevin C. Schlaufman, E. Myers, K. V. Tokmakov, S. Killbourn, Carlo Ungarelli, Martin M. Fejer, Hideyuki Tagoshi, J. R. Smith, R. Bork, T. Regimbau, Toshifumi Futamase, C. I. Torrie, Herbert Welling, A. Heptonstall, M. Malec, T. Nash, W. G. Anderson, Peter Shawhan, M. Tibbits, B. P. Abbott, A. Sazonov, Seiji Kawamura, Nobuyuki Kanda, Hartmut Grote, James Whelan, P. Ajith, L. Matone, Yukiyoshi Iida, Martin Hewitson, Massimo Tinto, Nergis Mavalvala, J. G. Rollins, Junwei Cao, Reinhard Prix, Naoko Ohishi, B. C. Barish, K. D. Zaleski, Phil Willems, M. Hrynevych, R. DeSalvo, S. Vass, W. Kells, P. Ehrens, D. Busby, D. M. Strom, Masa-Katsu Fujimoto, Kevin M. Carter, T. Delker, P. G. Murray, Osamu Miyakawa, David H. Reitze, Christian J. Killow, S. B. Anderson, Hiroyuki Nakano, Misao Sasaki, Jordan Camp, A. Sibley, J. Dalrymple, Masao Tokunari, Lindon J. Robison, A. S. Sengupta, J. H. Hough, D. Jungwirth, Philippe Grandclément, P. E. Lindquist, K. Wette, Peter Aufmuth, David B. Tanner, M. W. Regehr, Lisa M. Goggin, Douglas R. Cook, M. Sung, P. J. Sutton, Haisheng Rong, Timothy Evans, Helena Armandula, E. J. Elliffe, Kazuhiro Hayama, M. Pedraza, Michele Zanolin, S. Seel, R. Coldwell, Jeffrey A. Edlund, M. A. Barton, D. Sigg, Keiko Kokeyama, Gavin Davies, D. Steussy, Koji Arai, R. Burgess, Maria Alessandra Papa, V. Chickarmane, Daniel C. Woods, B. Sears, Kimio Tsubono, T. Akutsu, S. W. Ballmer, Kent Blackburn, S. Wen, D. I. Robertson, Vicky Kalogera, Souichi Telada, J. Mason, B. Bhawal, D.B. DeBra, S. J. Berukoff, K. Y. Franzen, M. Hammond, J. Kern, Hisa-aki Shinkai, L. Jones, Robert Bennett, A. Yamamoto, Matthew Evans, L. Cardenas, Yi Pan, S. Klimenko, Ryutaro Takahashi, Y. Tsunesada, G. Moreno, Robert Spero, Soumya D. Mohanty, David Crooks, N. Zotov, K. Mason, Sanjeev Dhurandhar, S. Ray-Majumder, Xavier Siemens, C. N. Colacino, Yi Chen, M. Hennessy, Q. Z. Shu, R. L. Ward, M. Ito, J. H. Romie, K. Bayer, F. J. Raab, R. Gustafson, S. Márka, Takakazu Shintomi, J. Zweizig, Kohei Takeno, B. Bland, U. Weiland, Takahiro Tanaka, Kenneth A. Strain, S. E. Seader, A. Weidner, R. A. Mercer, Michael E Zucker, Stephen Fairhurst, Tatsuru Yoshida, A. L. Stuver, O. Matherny, Manuel Luna, B. O'Reilly, J. S. Noel, B. Barr, Hiromi Mizusawa, J. Worden, A. Rüdiger, Namio Matsuda, J. Castiglione, Youhei Fujiki, P. Charlton, R. Riesen, A. Di Credico, Roland Schilling, I. A. Bilenko, V. Dergachev, Ian Taylor, David J. Ottaway, Marco Aurelio Diaz, Nobuhiro Tsuda, David Jones, Peter R. Saulson, Taketoshi Kasai, F. Asiri, Badri Krishnan, H. Ding, Takashi Uchiyama, Antony C. Searle, Kunihito Ioka, Frank Seifert, B. F. Whiting, Joseph M. Kovalik, S. E. Whitcomb, I. Yakushin, Hirotaka Takahashi, Keisuke Taniguchi, B. J. Cusack, Guenakh Mitselmakher, S. R. Rao, O. Spjeld, R. Zhu, Toshitaka Yamazaki, M. Ashley, Mitsuhiro Fukushima, L. Sievers, Jolien D. E. Creighton, Thomas Cokelaer, Lindy Blackburn, Yuriko Yanagi, Chunglee Kim, V. Sandberg, D. Barker, A. Ivanov, H. Radkins, S. P. Vyachanin, S. Chelkowski, W. Tyler, S. Roddy, Raymond G. Beausoleil, R. Balasubramanian, A. M. Sintes, Lee Samuel Finn, M. Barnes, Julien Sylvestre, Yoichi Aso, L. Wallace, R. Frey, P. J. King, D. Grimmett, Philip Nutzman, A. G. Wiseman, D. C. Coyne, K. Reithmaier, Andreas Freise, A. Libson, Matthew Pitkin, R. Wooley, I. Zawischa, Peter H. Sneddon, Yasufumi Kojima, J. Garofoli, K. Kawabe, B. Rivera, M. Mageswaran, H. Ward, John Veitch, Jun'ichi Yokoyama, M. MacInnis, R. S. Amin, Kazuhiro Yamamoto, N. Hindman, Gregory M. Harry, M. Lei, T. Olson, A. Khan, Virginio Sannibale, David E. McClelland, C. Messenger, W. Hua, Aya Sekido, Adrian C. Ottewill, K. Mailand, Krzysztof Belczynski, R. Mittleman, Nelson Christensen, A. Hartunian, Roman Schnabel, The LIGO Scientific Collaboration, and TAMA Collaboration

Subjects
Nuclear and High Energy Physics, templates, Milky Way, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, 01 natural sciences, coalescence rates, neutron stars, Cosmology, General Relativity and Quantum Cosmology, binary stars, gravitational wave detectors, 0103 physical sciences, Binary star, ddc:530, compact binaries, 010306 general physics, QC, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Gravitational wave, Astronomy, LIGO, Galaxy, Neutron star, Stars, gravitational waves, light interferometry, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
Abstract

We search for coincident gravitational wave signals from inspiralling neutron star binaries using LIGO and TAMA300 data taken during early 2003. Using a simple trigger exchange method, we perform an inter-collaboration coincidence search during times when TAMA300 and only one of the LIGO sites were operational. We find no evidence of any gravitational wave signals. We place an observational upper limit on the rate of binary neutron star coalescence with component masses between 1 and 3 M_sun of 49 per year per Milky Way equivalent galaxy at a 90% confidence level. The methods developed during this search will find application in future network inspiral analyses., 9 pages, 5 figures. Updated with published version

Published
2005

3. Search for gravitational waves from primordial black hole binary coalescences in the galactic halo

Author

Laura Cadonati, B. F. Whiting, P. G. Murray, D. Rose, H. Overmier, Susan M. Scott, Teviet Creighton, Herbert Walther, J. H. Hough, X. Siemens, K. Kötter, C. Wilkinson, M. Coles, M. Guenther, A. Rizzi, V. Re, J. Heefner, Douglas R. Cook, L. Jones, Roman Schnabel, J. E. Brau, B. Bland, U. Weiland, Michele Zanolin, Patrick Brady, S. Seel, Rainer Weiss, R. W. P. Drever, O. Matherny, S. E. Seader, F. Nocera, B. Barr, J. Worden, A. Rüdiger, R. Riesen, D. Churches, Roland Schilling, Richard J. K. Taylor, Gianpietro Cagnoli, T. Summerscales, M. A. Barton, W. W. Johnson, C. A. Shapiro, Stephen Fairhurst, J. H. Romie, K. Bayer, F. J. Raab, F. Asiri, S. E. Whitcomb, Michael Landry, T. Findley, D. Ouimette, A. M. Gretarsson, Philippe Grandclément, P. J. Sutton, Haisheng Rong, Michele Vallisneri, R. Gustafson, D.B. DeBra, K. Rawlins, A. Bunkowski, T. Regimbau, A. Wilson, H. Ward, C. I. Torrie, A. Heptonstall, M. Malec, D. Steussy, B. Sears, K. Y. Franzen, Jordan Camp, Ik Siong Heng, Vicky Kalogera, E. Messaritaki, G. Billingsley, M. Hammond, J. Myers, Phil Willems, M. W.E. Smith, J. Kern, A. S. Sengupta, Y. Hefetz, G. Mendell, Scott Koranda, L. Matone, S. Wise, S. Chatterji, Sheila Rowan, R. J. Dupuis, Suvadeep Bose, D. M. Strom, S. Grunewald, B. Lantz, John Veitch, Gerhard Heinzel, C. Hardham, Benno Willke, A. Sibley, Richard S. Savage, J. Mason, J. Zweizig, K. D. Zaleski, David Jones, R. DeSalvo, N. A. Robertson, Kenneth G. Libbrecht, I. Salzman, D. B. Kozak, C. Vorvick, Seiji Kawamura, Reinhard Prix, A. J. Weinstein, W. Wu, Matthew Evans, L. Cardenas, A. Gillespie, C. Parameswariah, R. M. S. Schofield, Alberto Vecchio, Yi Pan, M. MacInnis, Osamu Miyakawa, C. A. Cantley, David H. Reitze, Benjamin J. Owen, Peter R. Saulson, Shinji Miyoki, Christian J. Killow, K. Reithmaier, Andreas Freise, A. Libson, Matthew Pitkin, Alessandra Buonanno, Benjamin William Allen, S. Klimenko, R. Abbott, J. Langdale, G. P. Newton, M. Fyffe, W. G. Anderson, K. V. Tokmakov, S. Penn, Robert Spero, Soumya D. Mohanty, A. Ageev, C. Aulbert, Peter Shawhan, M. Tibbits, B. P. Abbott, Sandra E. Wiley, Gabriela Gonzalez, H. Tariq, Pamela J. Russell, S. Richman, Oliver Jennrich, Karsten Danzmann, M. C. Sumner, M. Lormand, M. Fine, S. Vass, Martin Hewitson, R. Wooley, N. Zotov, K. Mason, Jan Harms, A. Grant, S. Liu, K. A. Thorne, J. Betzwieser, Peter Fritschel, D. Ugolini, Carsten Fallnich, Jeffrey A. Edlund, Sanichiro Yoshida, W. Kells, D. Busby, Carlo Ungarelli, J. S. Noel, M. Ito, Graham Woan, Sanjeev Dhurandhar, S. Ray-Majumder, Robert L. Byer, Stuart Reid, Stefan Hild, R. Burgess, A. Bullington, Daniel C. Woods, Erika D'Ambrosio, S. Nagano, C. Torres, Soma Mukherjee, M. Rakhmanov, C. N. Colacino, Bernard F. Schutz, D. Redding, Keisuke Goda, M. R. Smith, M. Hrynevych, L. Bogue, D. I. Robertson, G. Stapfer, V. V. Frolov, J. Castiglione, P. Hoang, C. Barker, I. Zawischa, J. Hanson, Guido Mueller, P. Charlton, Erik Katsavounidis, I. Leonor, V. Parameshwaraiah, A. Di Credico, Yi Chen, H. Yamamoto, M. Hennessy, Q. Z. Shu, Roy Williams, M. J. Lubinski, S. Meshkov, G. Traylor, Thomas Corbitt, Akiteru Takamori, D. Barker, Walter Winkler, Harald Lück, Kip S. Thorne, D. Chin, I. A. Bilenko, V. Dergachev, Ian Taylor, David J. Ottaway, S. Wen, D. Farnham, E. J. Daw, Stanislav Babak, Walid A. Majid, K. S. Ganezer, K. Watts, Vladimir B. Braginsky, Curt Cutler, G. H. Sanders, R. Lawrence, K. Riles, Duncan A. Brown, Stefan Goßler, V. Schmidt, S. Chelkowski, David H. Shoemaker, V. P. Mitrofanov, N. Hepler, K. T. Reilly, R. Bennett, William E. Butler, R. Amin, Brent Ware, M. C. Araya, W. O. Hamilton, A. Marin, Yousuke Itoh, F. Mann, Kevin C. Schlaufman, T. Etzel, Herbert Welling, Nergis Mavalvala, P. Ehrens, J. W C McNabb, B. Bochner, A. Stuver, S. Roddy, Martin P McHugh, M. H. P. M. van Putten, S. Killbourn, S. Tilav, B. C. Barish, Massimo Tinto, E. Rotthoff, Kevin M. Carter, B. Johnson, James Whelan, S. B. Anderson, P. Schwinberg, J. Chapsky, D. Webber, E. Maros, H. Ding, L. Zhang, Rana X. Adhikari, B. Machenschalk, V. Quetschke, David B. Tanner, Bangalore Suryanarayana Sathyaprakash, E. Black, M. W. Regehr, Martin M. Fejer, J. R. Smith, R. Bork, T. Nash, C. Gray, Peter H. Sneddon, A. Sazonov, M. Pedraza, Maria Alessandra Papa, Kent Blackburn, A. M. Sintes, J. Garofoli, Lee Samuel Finn, Robert J. McCarthy, K. Kawabe, B. Rivera, I. Yakushin, Linqing Wen, M. Mageswaran, Guenakh Mitselmakher, J. A. Giaime, Eric K. Gustafson, R. Zhu, L. Sievers, Thomas Cokelaer, M. Barnes, Julien Sylvestre, Timothy Evans, T. T. Lyons, L. Wallace, R. Frey, P. J. King, D. Grimmett, Philip Nutzman, A. G. Wiseman, R. Coldwell, D. C. Coyne, Albert Lazzarini, D. Sigg, S. W. Ballmer, Joseph D. Romano, C. King, G. Moreno, Kasem Mossavi, J. G. Rollins, A. Ivanov, W. R. Johnston, David Crooks, P. Csatorday, T. Delker, P. R. Williams, J. Logan, R. K. Nayak, M. V. Plissi, R. Rahkola, Lindon J. Robison, H. Radkins, Michael E Zucker, Helena Armandula, E. J. Elliffe, Hartmut Grote, A. Chandler, S. P. Vyachanin, Kevin M. Ryan, W. Tyler, D. Jungwirth, N. Hindman, P. E. Lindquist, Peter Aufmuth, Marco Aurelio Diaz, A. Parameswaran, V. Chickarmane, Raymond G. Beausoleil, B. Bhawal, R. Balasubramanian, S. J. Berukoff, Badri Krishnan, S. Márka, Antony C. Searle, Kenneth A. Strain, A. Weidner, R. A. Mercer, B. O'Reilly, Frank Seifert, Joseph M. Kovalik, C. Messenger, Morag M. Casey, M. Heurs, B. J. Winjum, W. Hua, B. J. Cusack, S. R. Rao, M. Ashley, Gregory M. Harry, M. Lei, T. Olson, Jolien D. E. Creighton, Lindy Blackburn, Chunglee Kim, A. Khan, V. Sandberg, Virginio Sannibale, David E. McClelland, Adrian C. Ottewill, K. Mailand, Krzysztof Belczynski, R. Mittleman, Nelson Christensen, A. Hartunian, and The LIGO Scientific Collaboration

Subjects
Nuclear and High Energy Physics, MACHO PROJECT, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Primordial black hole, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Galactic halo, Binary black hole, 0103 physical sciences, 10. No inequality, 010303 astronomy & astrophysics, QC, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Gravitational wave, Astronomy, LIGO, Black hole, Intermediate-mass black hole, Stellar black hole
Abstract

We use data from the second science run of the LIGO gravitational-wave detectors to search for the gravitational waves from primordial black hole (PBH) binary coalescence with component masses in the range 0.2--$1.0 M_\odot$. The analysis requires a signal to be found in the data from both LIGO observatories, according to a set of coincidence criteria. No inspiral signals were found. Assuming a spherical halo with core radius 5 kpc extending to 50 kpc containing non-spinning black holes with masses in the range 0.2--$1.0 M_\odot$, we place an observational upper limit on the rate of PBH coalescence of 63 per year per Milky Way halo (MWH) with 90% confidence., Comment: 7 pages, 4 figures, to be submitted to Phys. Rev. D

Published
2005

4. Search for gravitational waves from galactic and extra-galactic binary neutron stars

Author

Sanichiro Yoshida, B. F. Whiting, Graham Woan, Robert L. Byer, E. Maros, Stuart Reid, M. Rakhmanov, U. Weiland, E. J. Daw, C. Parameswariah, M. Coles, M. Guenther, Bernard F. Schutz, G. Stapfer, J. Langdale, Sandra E. Wiley, Michael D. Smith, Gabriela Gonzalez, Guido Mueller, J. W C McNabb, David Jones, Patrick Brady, A. Wilson, K. D. Zaleski, Roman Schnabel, D. Churches, Peter R. Saulson, D. Steussy, B. Sears, H. Yamamoto, N. A. Robertson, H. Ding, Vicky Kalogera, A. Rizzi, J. Mason, Alberto Vecchio, J. E. Brau, W. R. Johnston, F. Asiri, S. E. Whitcomb, C. Gray, M. Ito, P. Schwinberg, D. Webber, Carlo Ungarelli, Seiji Kawamura, Reinhard Prix, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, A. Gillespie, J. S. Noel, T. Summerscales, J. R. Smith, S. Klimenko, T. Nash, C. A. Shapiro, Osamu Miyakawa, David H. Reitze, J. Hanson, Y. Hefetz, Gerhard Heinzel, C. Hardham, A. Sazonov, Lindon J. Robison, Benno Willke, Christian J. Killow, D. Rose, R. Desalvo, D. Kozak, W. O. Hamilton, Philippe Grandclément, P. J. Sutton, Kevin M. Carter, Haisheng Rong, C. Aulbert, Scott Koranda, L. Matone, C. A. Cantley, S. Killbourn, J. Castiglione, H. Overmier, P. Charlton, Michael Landry, Helena Armandula, E. J. Elliffe, Benjamin William Allen, R. McCarthy, Karsten Danzmann, M. C. Sumner, A. Ivanov, A. Di Credico, S. B. Anderson, David B. Tanner, James Whelan, L. Zhang, Alessandra Buonanno, Curt Cutler, G. Mendell, M. W. Regehr, V. Re, J. H. Romie, K. Bayer, I. A. Bilenko, S. Nagano, V. Dergachev, Ian Taylor, David J. Ottaway, F. J. Raab, V. Parameshwaraiah, G. Billingsley, H. Radkins, Linqing Wen, S. P. Vyachanin, O. Matherny, M. Pedraza, W. Tyler, B. Lantz, Rainer Weiss, A. Sibley, Maria Alessandra Papa, B. Barr, Shinji Miyoki, S. Chatterji, D. Chin, Peter Fritschel, P. G. Murray, J. Worden, J. A. Giaime, Stanislav Babak, Walid A. Majid, Erika D'Ambrosio, T. Etzel, A. Rüdiger, Duncan A. Brown, D. Redding, M. Malec, P. Hoang, S. Penn, J. H. Hough, Kent Blackburn, Karsten Kötter, Jordan Camp, Pamela J. Russell, S. Richman, Raymond G. Beausoleil, J. D. E. Creighton, I. Salzman, Joseph D. Romano, C. King, R. Balasubramanian, Oliver Jennrich, R. Riesen, J. Zweizig, L. Jones, Michele Zanolin, M. Hrynevych, S. Seel, Roland Schilling, Kasem Mossavi, R. Amin, R. M. S. Schofield, Brent Ware, M. Lubinski, A. S. Sengupta, E. Rotthoff, G. Newton, M. Ashley, K. A. Thorne, M. R. Smith, D. Ugolini, Carsten Fallnich, Stefan Hild, K. Mailand, Kip S. Thorne, R. W.P. Drever, Richard J. Abbott, Benjamin J. Owen, Rana X. Adhikari, Robert Spero, Soumya D. Mohanty, Matthew Evans, L. Cardenas, T. Findley, K. V. Tokmakov, D. Debra, N. Zotov, A. Chandler, D. Coyne, B. Bland, A. M. Gretarsson, V. P. Mitrofanov, M. C. Araya, K. Mason, T. Evans, Yi Pan, Kevin M. Ryan, B. Machenschalk, S. Ray-Majumder, S. E. Seader, A. Heptonstall, D. Cook, D. Ouimette, G. H. Sanders, R. Lawrence, M. Fine, Walter Winkler, Harald Lück, C. N. Colacino, J. Betzwieser, Lindy Blackburn, P. Ehrens, Stephen Fairhurst, A. Lazzarini, Richard J. K. Taylor, Gianpietro Cagnoli, Yi Chen, A. Bullington, M. Hennessy, Q. Z. Shu, L. Bogue, M. A. Barton, Chunglee Kim, G. Traylor, Thomas Corbitt, S. Wise, J. Myers, A. Marin, Akiteru Takamori, V. Sandberg, Suvadeep Bose, K. Y. Franzen, M. Hammond, B. Bochner, E. Messaritaki, Massimo Tinto, Sheila Rowan, S. Meshkov, Kenneth G. Libbrecht, S. Chelkowski, J. Kern, Robert Bennett, Laura Cadonati, K. Kawabe, C. Vorvick, W. Kells, B. J. Cusack, W. G. Anderson, Peter Shawhan, M. Tibbits, B. P. Abbott, T. T. Lyons, S. Vass, Susan M. Scott, Teviet Creighton, Herbert Walther, D. Busby, N. Hepler, X. Siemens, C. Wilkinson, S. R. Rao, A. Bunkowski, A. Ageev, F. Nocera, Jan Harms, G. Moreno, T. Regimbau, C. I. Torrie, Phil Willems, D. M. Strom, A. J. Weinstein, W. Wu, S. Liu, Keisuke Goda, Erik Katsavounidis, Adrian C. Ottewill, Vladimir B. Braginsky, K. Riles, Yousuke Itoh, Krzysztof Belczynski, David Crooks, R. Mittleman, Nelson Christensen, A. Hartunian, N. Hindman, S. Mukherjee, R. Coldwell, D. Sigg, W. W. Johnson, S. W. Ballmer, M. Hewitson, Morag M. Casey, M. Heurs, B. J. Winjum, I. Yakushin, C. Messenger, Guenakh Mitselmakher, M. Lormand, R. Zhu, L. Sievers, W. Hua, Thomas Cokelaer, D. Barker, S. Roddy, Gregory M. Harry, M. Lei, T. Olson, A. M. Sintes, A. Khan, P. Aufmuth, Lee Samuel Finn, Virginio Sannibale, David E. McClelland, M. Barnes, Julien Sylvestre, L. Wallace, R. Frey, P. J. King, D. Grimmett, I. Leonor, Philip Nutzman, A. G. Wiseman, S. Grunewald, J. Logan, R. K. Nayak, R. Rahkola, S. Wen, David H. Shoemaker, K. Reithmaier, F. Mann, J. Heefner, A. Stuver, Andreas Freise, A. Libson, Matthew Pitkin, B. Johnson, J. Chapsky, J. G. Rollins, S. Dhurandhar, M. Mageswaran, R. Wooley, T. Delker, P. R. Williams, H. Tariq, Eric K. Gustafson, I. Zawischa, Badri Krishnan, Antony C. Searle, V. Chickarmane, Frank Seifert, Joseph M. Kovalik, H. Ward, B. Bhawal, Michael E Zucker, S. J. Berukoff, R. Bork, John Veitch, Marco Aurelio Diaz, P. Csatorday, V. V. Frolov, M. MacInnis, A. Parameswaran, M. Fyffe, M. V. Plissi, Peter H. Sneddon, J. Garofoli, Hartmut Grote, K. Rawlins, D. Jungwirth, P. E. Lindquist, S. Márka, Kenneth A. Strain, A. Weidner, R. A. Mercer, C. Torres, B. O'Reilly, C. Barker, B. Rivera, D. Farnham, V. Schmidt, William E. Butler, Martin P McHugh, M. H. P. M. van Putten, S. Tilav, Richard L. Savage, Jeffrey A. Edlund, R. Burgess, Daniel C. Woods, D. I. Robertson, Roy Williams, K. S. Ganezer, K. Watts, Stefan Goßler, R. Gustafson, K. T. Reilly, Kevin C. Schlaufman, Herbert Welling, Nergis Mavalvala, B. C. Barish, A. Grant, Michele Vallisneri, Ik Siong Heng, R. J. Dupuis, and The LIGO Scientific Collaboration

Subjects
Nuclear and High Energy Physics, templates, Andromeda Galaxy, Milky Way, X-ray binary, FOS: Physical sciences, rates, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, FORMS, 01 natural sciences, General Relativity and Quantum Cosmology, EVENTS, SYSTEMS, 0103 physical sciences, Binary star, DETECTORS, ddc:530, TEMPLATES, RATES, LIGO, 010303 astronomy & astrophysics, QC, Astrophysics::Galaxy Astrophysics, detectors, Physics, inspiraling compact binaries, 010308 nuclear & particles physics, Gravitational wave, Astronomy, Local Group, ligo, PULSARS, Galaxy, pulsars, INSPIRALING COMPACT BINARIES, systems, forms, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, events
Abstract

We use 373 hours ($\approx$ 15 days) of data from the second science run of the LIGO gravitational-wave detectors to search for signals from binary neutron star coalescences within a maximum distance of about 1.5 Mpc, a volume of space which includes the Andromeda Galaxy and other galaxies of the Local Group of galaxies. This analysis requires a signal to be found in data from detectors at the two LIGO sites, according to a set of coincidence criteria. The background (accidental coincidence rate) is determined from the data and is used to judge the significance of event candidates. No inspiral gravitational wave events were identified in our search. Using a population model which includes the Local Group, we establish an upper limit of less than 47 inspiral events per year per Milky Way equivalent galaxy with 90% confidence for non-spinning binary neutron star systems with component masses between 1 and 3 $M_\odot$., 20 pages, 12 figures, to be submitted to Phys. Rev. D

Published
2005
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5. Upper limits on gravitational wave bursts in LIGO's second science run

Author

J. Logan, R. K. Nayak, R. Rahkola, I. Yakushin, Michael E Zucker, R. J. Dupuis, Guenakh Mitselmakher, Manuel Luna, Curt Cutler, Marco Aurelio Diaz, O. Spjeld, R. Zhu, M. C. Araya, A. Wilson, H. Ward, Roy Williams, Y. Hefetz, Gerhard Heinzel, C. Hardham, Benno Willke, T. Findley, Peter Fritschel, D. Ouimette, A. J. Weinstein, W. Wu, Amber Stuver, Sanichiro Yoshida, Graham Woan, Robert L. Byer, Stuart Reid, A. M. Gretarsson, M. Rakhmanov, R. L. Ward, E. Messaritaki, Badri Krishnan, Antony C. Searle, Frank Seifert, Joseph M. Kovalik, K. S. Ganezer, K. Watts, L. Ruet, Albert Lazzarini, E. Rotthoff, Bernard F. Schutz, G. Stapfer, J. Hanson, J. H. Romie, K. C. Cannon, K. Bayer, Sheila Rowan, Stefan Goßler, K. T. Reilly, Seiji Kawamura, Reinhard Prix, Alessandra Buonanno, L. Sievers, John Veitch, Guido Mueller, Morag M. Casey, M. Heurs, Robert J. McCarthy, M. Ito, Shinji Miyoki, B. J. Winjum, S. Wise, S. Grunewald, J. G. Rollins, Thomas Cokelaer, Rana X. Adhikari, Gareth Jones, A. Gillespie, T. Delker, Linqing Wen, Juri Agresti, A. Rizzi, R. Gustafson, B. Machenschalk, Osamu Miyakawa, David H. Reitze, Kevin C. Schlaufman, Kevin M. Carter, A. Grant, S. Liu, M. MacInnis, Herbert Welling, Nergis Mavalvala, C. Aulbert, R. S. Amin, S. Márka, A. Ageev, H. Tariq, T. Summerscales, Christian J. Killow, C. A. Cantley, Pankaj Sarin, A. C. Melissinos, Peter H. Sneddon, Kenneth G. Libbrecht, L. Zhang, Kenneth A. Strain, D. Farnham, Philippe Grandclément, Jan Harms, V. V. Frolov, B. C. Barish, J. Zweizig, V. Parameshwaraiah, Keisuke Goda, C. Robinson, A. Weidner, Benjamin William Allen, Michael Landry, P. J. Sutton, D. Barker, R. A. Mercer, Karsten Danzmann, M. C. Sumner, M. R. Smith, C. A. Shapiro, Adrian C. Ottewill, Joseph D. Romano, C. King, Kasem Mossavi, G. Billingsley, Haisheng Rong, G. Traylor, S. B. Anderson, K. D. Zaleski, R. DeSalvo, David B. Tanner, B. O'Reilly, S. Chelkowski, B. Lantz, Vuk Mandic, Erik Katsavounidis, S. Nagano, J. Garofoli, V. Schmidt, Peter Aufmuth, I. Salzman, K. Mailand, Robert Spero, Soumya D. Mohanty, N. Zotov, K. Mason, S. Roddy, D. Redding, V. Chickarmane, R. M. S. Schofield, Soma Mukherjee, Benjamin J. Owen, J. A. Giaime, Eric K. Gustafson, M. W. Regehr, P. Ehrens, Krzysztof Belczynski, B. F. Whiting, R. Mittleman, Scott Koranda, L. Matone, Sanjeev Dhurandhar, M. J. Lubinski, Thomas Corbitt, S. Meshkov, P. Hoang, Akiteru Takamori, S. Ray-Majumder, M. Sung, Richard L. Savage, R. Bennett, William E. Butler, E. Myers, K. V. Tokmakov, Erika D'Ambrosio, T. T. Lyons, A. Chandler, Nelson Christensen, B. Bhawal, M. Pedraza, K. Wette, A. Hartunian, H. Overmier, D. Chin, Stanislav Babak, Walid A. Majid, C. N. Colacino, Duncan A. Brown, Kevin M. Ryan, A. M. Sintes, Lee Samuel Finn, Vladimir B. Braginsky, Timothy Evans, P. G. Murray, K. Riles, Jeffrey A. Edlund, S. J. Berukoff, K. Kawabe, R. Coldwell, D. Sellers, A. Sibley, Yi Chen, Eugeniy E. Mikhailov, D. B. Kozak, M. Hennessy, Q. Z. Shu, Maria Alessandra Papa, B. Rivera, M. Hrynevych, C. Vorvick, Martin P McHugh, T. Regimbau, C. I. Torrie, A. Heptonstall, D. Sigg, S. W. Ballmer, M. Barnes, Julien Sylvestre, R. Burgess, Daniel C. Woods, M. Mageswaran, J. H. Hough, J. Allen, P. Csatorday, N. Hepler, D. I. Robertson, G. Moreno, W. G. Anderson, M. V. Plissi, Kent Blackburn, K. Reithmaier, L. Wallace, Andreas Freise, I. Leonor, John K. Cannizzo, R. Frey, Shantanu Desai, M. H. P. M. van Putten, A. Libson, S. Tilav, Peter Shawhan, J. Heefner, M. Tibbits, B. P. Abbott, Kip S. Thorne, S. Vass, Douglas R. Cook, David Crooks, Michele Zanolin, S. Seel, M. Coles, Hartmut Grote, M. Guenther, Matthew Pitkin, R. Wooley, P. J. King, D. Grimmett, Philip Nutzman, M. Malec, W. R. Johnston, Phil Willems, W. Kells, M. A. Barton, D. Busby, Brent Ware, Yousuke Itoh, E. Maros, A. G. Wiseman, D. Jungwirth, P. E. Lindquist, E. J. Daw, D. C. Coyne, D.B. DeBra, Michele Vallisneri, V. P. Mitrofanov, I. Zawischa, D. M. Strom, K. Rawlins, Ik Siong Heng, Patrick Brady, Roman Schnabel, N. Hindman, K. Y. Franzen, J. E. Brau, M. Hammond, Walter Winkler, C. Messenger, Subhasish Mitra, Lindon J. Robison, Harald Lück, Helena Armandula, E. J. Elliffe, T. Etzel, A. Bunkowski, W. Hua, M. W.E. Smith, J. Kern, H. Yamamoto, P. R. Williams, Lisa M. Goggin, D. Churches, N. A. Robertson, Gavin Davies, D. Steussy, B. Sears, L. Jones, S. Wen, Laura Cadonati, Vicky Kalogera, Susan M. Scott, Teviet Creighton, Herbert Walther, Gregory M. Harry, F. Raab, A. Marin, M. Lei, X. Siemens, K. Kötter, C. Wilkinson, J. Mason, T. Olson, B. Bochner, David H. Shoemaker, G. H. Sanders, R. Lawrence, P. Schwinberg, F. Nocera, Martin Hewitson, A. Khan, Jordan Camp, Massimo Tinto, Carlo Ungarelli, W. O. Hamilton, J. Dalrymple, D. Webber, Virginio Sannibale, David E. McClelland, S. Penn, S. Killbourn, A. S. Sengupta, Pamela J. Russell, S. Richman, V. Quetschke, James Whelan, F. Mann, C. Torres, Oliver Jennrich, P. Ajith, H. Ding, K. A. Thorne, J. Betzwieser, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, D. Ugolini, Carsten Fallnich, A. Rodriguez, C. Barker, Stefan Hild, J. R. Smith, R. Bork, T. Nash, Matthew Evans, L. Cardenas, Yi Pan, S. Klimenko, B. Johnson, B. J. Cusack, M. Lormand, M. Fine, A. Sazonov, G. Mendell, Richard J. K. Taylor, S. R. Rao, A. Bullington, C. Parameswariah, L. Bogue, J. Chapsky, J. Langdale, G. P. Newton, M. Fyffe, Sandra E. Wiley, Gabriela Gonzalez, M. Ashley, C. Gray, Gianpietro Cagnoli, D. Rose, V. Re, Jolien D. E. Creighton, Lindy Blackburn, Chunglee Kim, V. Sandberg, Rainer Weiss, R. W. P. Drever, W. W. Johnson, A. Ivanov, H. Radkins, S. P. Vyachanin, W. Tyler, Raymond G. Beausoleil, R. Balasubramanian, J. Myers, Shourov Chatterji, Suvadeep Bose, Alberto Vecchio, J. S. Noel, J. Castiglione, P. Charlton, A. Di Credico, I. A. Bilenko, V. Dergachev, Ian Taylor, David J. Ottaway, David Jones, Peter R. Saulson, R. Abbott, B. Bland, U. Weiland, S. E. Seader, Stephen Fairhurst, O. Matherny, B. Barr, J. Worden, A. Rüdiger, R. Riesen, Roland Schilling, F. Asiri, S. E. Whitcomb, and The LIGO Scientific Collaboration

Subjects
Nuclear and High Energy Physics, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, rotational core collapse, General Relativity and Quantum Cosmology, Constant false alarm rate, 0103 physical sciences, DETECTORS, Waveform, ddc:530, ALGORITHM, 010306 general physics, QC, detectors, Physics, algorithm, 010308 nuclear & particles physics, Gravitational wave, Detector, PERFORMANCE, Noise floor, LIGO, SIGNAL, Amplitude, ROTATIONAL CORE COLLAPSE, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, signal, Noise (radio), performance
Abstract

We perform a search for gravitational wave bursts using data from the second science run of the LIGO detectors, using a method based on a wavelet time-frequency decomposition. This search is sensitive to bursts of duration much less than a second and with frequency content in the 100-1100Hz range. It features significant improvements in the instrument sensitivity and in the analysis pipeline with respect to the burst search previously reported by LIGO. Improvements in the search method allow exploring weaker signals, relative to the detector noise floor, while maintaining a low false alarm rate, O(0.1) microHz. The sensitivity in terms of the root-sum-square (rss) strain amplitude lies in the range of hrss~10^{-20} - 10^{-19}/sqrt(Hz) No gravitational wave signals were detected in 9.98 days of analyzed data. We interpret the search result in terms of a frequentist upper limit on the rate of detectable gravitational wave bursts at the level of 0.26 events per day at 90% confidence level. We combine this limit with measurements of the detection efficiency for given waveform morphologies in order to yield rate versus strength exclusion curves as well as to establish order-of-magnitude distance sensitivity to certain modeled astrophysical sources. Both the rate upper limit and its applicability to signal strengths improve our previously reported limits and reflect the most sensitive broad-band search for untriggered and unmodeled gravitational wave bursts to date., 23 pages, 14 figures, to be submitted to Phys Rev D

Published
2005

6. Search for gravitational waves associated with the gamma ray burst GRB030329 using the LIGO detectors

Author

J. E. Brau, W. R. Johnston, S. Nagano, D. Ouimette, Sanichiro Yoshida, D. Redding, Graham Woan, Robert L. Byer, Stuart Reid, D. Jungwirth, Philippe Grandclément, P. J. Sutton, P. Hoang, Haisheng Rong, Jordan Camp, Lindon J. Robison, C. Messenger, M. Rakhmanov, Peter H. Sneddon, Bernard F. Schutz, G. Stapfer, A. S. Sengupta, Helena Armandula, J. Hanson, G. Newton, Alberto Vecchio, E. J. Elliffe, W. Hua, David H. Shoemaker, Guido Mueller, R. Amin, Darby Kozak, Michael E Zucker, F. Mann, J. Garofoli, B. Johnson, Morag M. Casey, M. Heurs, Marco Aurelio Diaz, Matthew Evans, L. Cardenas, Yi Pan, Albert Lazzarini, J. H. Romie, K. Bayer, T. Findley, Kevin M. Carter, B. J. Winjum, Walter Winkler, J. Chapsky, Shinji Miyoki, Daniel Sigg, F. J. Raab, S. Klimenko, R. Gustafson, A. Chandler, S. B. Anderson, Harald Lück, P. R. Williams, G. Mendell, Kevin M. Ryan, P. Csatorday, Badri Krishnan, Antony C. Searle, Frank Seifert, David B. Tanner, Joseph M. Kovalik, David Jones, J. Cannizzo, Roman Schnabel, D. Farnham, M. W. Regehr, N. Hepler, J. Betzwieser, A. Rizzi, S. Wise, S. Grunewald, M. V. Plissi, A. Marin, J. G. Rollins, S. Chatterji, C. Parameswariah, C. Gray, V. Schmidt, T. Regimbau, T. Summerscales, Peter R. Saulson, William E. Butler, C. I. Torrie, A. Heptonstall, Kenneth G. Libbrecht, M. Malec, A. Ageev, M. Pedraza, J. Langdale, H. Ding, M. Fyffe, T. Delker, David Crooks, K. Kawabe, B. Rivera, B. Bland, D. Churches, J. Zweizig, Jan Harms, M. Ito, Hartmut Grote, M. Lormand, Sandra E. Wiley, M. Fine, C. Vorvick, Gabriela Gonzalez, Maria Alessandra Papa, Massimo Tinto, U. Weiland, M. Mageswaran, Phil Willems, J. Logan, R. K. Nayak, C. A. Shapiro, G. Billingsley, R. Rahkola, Martin P McHugh, M. H. P. M. van Putten, S. Tilav, Richard J. K. Taylor, Gianpietro Cagnoli, A. Bullington, Linqing Wen, S. Penn, M. Hrynevych, Pamela J. Russell, S. Richman, Kent Blackburn, B. Lantz, P. E. Lindquist, L. Bogue, S. Meshkov, S. E. Seader, I. Salzman, W. G. Anderson, T. Etzel, A. L. Stuver, J. S. Noel, Oliver Jennrich, Peter Shawhan, M. Tibbits, B. P. Abbott, K. A. Thorne, Joseph D. Romano, R. M. S. Schofield, N. A. Robertson, N. Hindman, D. M. Strom, Robert Spero, Soumya D. Mohanty, C. Aulbert, H. Ward, Scott Koranda, Benjamin J. Owen, E. Maros, C. King, N. Zotov, S. Vass, D. Ugolini, Carsten Fallnich, Kasem Mossavi, V. Chickarmane, Stefan Hild, L. Matone, Soma Mukherjee, D. Rose, K. V. Tokmakov, Keisuke Goda, F. Asiri, A. M. Gretarsson, J. Myers, K. Mason, P. Ehrens, W. Kells, D. Busby, Martin Hewitson, E. Messaritaki, H. Tariq, P. Schwinberg, B. Bhawal, Sheila Rowan, Sanjeev Dhurandhar, J. Castiglione, K. Rawlins, A. Bunkowski, Erik Katsavounidis, D. Webber, S. Ray-Majumder, Suvadeep Bose, V. Re, M. A. Barton, A. Sibley, H. Yamamoto, R. Bork, Stephen Fairhurst, Timothy Evans, R. Coldwell, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, M. J. Lubinski, D.B. DeBra, P. Charlton, Carlo Ungarelli, Martin M. Fejer, J. R. Smith, Rainer Weiss, R. W. P. Drever, M. R. Smith, S. W. Ballmer, A. Di Credico, T. Nash, O. Matherny, A. Sazonov, C. N. Colacino, Vladimir B. Braginsky, K. Y. Franzen, W. W. Johnson, B. Barr, K. Riles, G. Moreno, Kenneth A. Strain, I. Leonor, A. Weidner, A. Gillespie, J. Worden, Eric K. Gustafson, Laura Cadonati, W. O. Hamilton, I. A. Bilenko, V. Dergachev, Ian Taylor, Yi Chen, M. Hennessy, Q. Z. Shu, M. Hammond, R. A. Mercer, S. Killbourn, A. Rüdiger, B. O'Reilly, David J. Ottaway, John Veitch, S. Wen, T. T. Lyons, James Whelan, R. Riesen, L. Zhang, R. McCarthy, Yousuke Itoh, Susan M. Scott, E. J. Daw, J. Kern, V. V. Frolov, L. Jones, Robert Bennett, Roland Schilling, G. H. Sanders, R. Lawrence, Teviet Creighton, Herbert Walther, V. Parameshwaraiah, C. Torres, A. J. Weinstein, W. Wu, C. Barker, X. Siemens, K. Kötter, P. G. Murray, C. Wilkinson, J. H. Hough, M. Landry, D. Chin, B. Bochner, Stanislav Babak, Walid A. Majid, J. W C McNabb, Richard J. Abbott, Douglas R. Cook, Duncan A. Brown, F. Nocera, Michele Zanolin, S. Seel, A. Grant, S. Liu, Brent Ware, M. MacInnis, Peter Fritschel, G. Traylor, Thomas Corbitt, Akiteru Takamori, S. E. Whitcomb, S. J. Berukoff, K. Reithmaier, Andreas Freise, A. Libson, Matthew Pitkin, R. Wooley, D. Barker, S. Chelkowski, S. Roddy, A. M. Sintes, P. Aufmuth, Lee Samuel Finn, M. Barnes, Julien Sylvestre, L. Wallace, R. Frey, P. J. King, D. Grimmett, Philip Nutzman, A. G. Wiseman, D. C. Coyne, I. Yakushin, Guenakh Mitselmakher, R. Zhu, L. Sievers, Thomas Cokelaer, Y. Hefetz, Gerhard Heinzel, C. Hardham, Benno Willke, Alessandra Buonanno, A. Wilson, C. A. Cantley, Benjamin William Allen, Karsten Danzmann, M. C. Sumner, Erika D'Ambrosio, Kip S. Thorne, V. P. Mitrofanov, M. C. Araya, D. Steussy, B. Sears, Vicky Kalogera, J. Mason, B. F. Whiting, H. Overmier, M. Coles, M. Guenther, Michael D. Smith, Patrick Brady, Seiji Kawamura, J. A. Giaime, Reinhard Prix, Osamu Miyakawa, David H. Reitze, Christian J. Killow, Roy Williams, K. S. Ganezer, K. Watts, Stefan Goßler, K. T. Reilly, Kevin C. Schlaufman, Herbert Welling, Nergis Mavalvala, B. C. Barish, K. D. Zaleski, R. DeSalvo, Adrian C. Ottewill, K. Mailand, Richard L. Savage, Krzysztof Belczynski, Jeffrey A. Edlund, R. Mittleman, R. Burgess, D. I. Robertson, Nelson Christensen, A. Hartunian, J. Heefner, Michele Vallisneri, Ik Siong Heng, S. Márka, R. J. Dupuis, E. Rotthoff, Gregory M. Harry, M. Lei, Rana X. Adhikari, B. Machenschalk, T. Olson, A. Khan, Virginio Sannibale, David E. McClelland, I. Zawischa, Curt Cutler, A. Ivanov, H. Radkins, S. P. Vyachanin, W. Tyler, Raymond G. Beausoleil, R. Balasubramanian, M. Ashley, Jolien D. E. Creighton, Lindy Blackburn, Chunglee Kim, V. Sandberg, B. J. Cusack, S. R. Rao, and The LIGO Scientific Collaboration

Subjects
stars, Nuclear and High Energy Physics, Gravitational-wave observatory, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, 01 natural sciences, General Relativity and Quantum Cosmology, Observatory, 0103 physical sciences, emission, ddc:530, 010303 astronomy & astrophysics, QC, curve, unusual supernova, Physics, optical afterglow, 010308 nuclear & particles physics, Gravitational wave, Astrophysics (astro-ph), Astronomy, dynamics, LIGO, core-collapse, explorer, Supernova, Interferometry, grb-030329, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, Gamma-ray burst, signal
Abstract

We have performed a search for bursts of gravitational waves associated with the very bright Gamma Ray Burst GRB030329, using the two detectors at the LIGO Hanford Observatory. Our search covered the most sensitive frequency range of the LIGO detectors (approximately 80-2048 Hz), and we specifically targeted signals shorter than 150 ms. Our search algorithm looks for excess correlated power between the two interferometers and thus makes minimal assumptions about the gravitational waveform. We observed no candidates with gravitational wave signal strength larger than a pre-determined threshold. We report frequency dependent upper limits on the strength of the gravitational waves associated with GRB030329. Near the most sensitive frequency region, around 250 Hz, our root-sum-square (RSS) gravitational wave strain sensitivity for optimally polarized bursts was better than h_RSS = 6E-21 Hz^{-1/2}. Our result is comparable to the best published results searching for association between gravitational waves and GRBs., Comment: 18 pages, 9 figures and 3 tables; Updated according to journal reviewer's comments

Published
2005
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7. Upper limits from the LIGO and TAMA detectors on the rate of gravitational-wave bursts

Author

H. Ward, A. Chandler, Kevin M. Ryan, T. Regimbau, Ken'ichi Nakagawa, C. I. Torrie, John Veitch, A. Heptonstall, M. Malec, Jordan Camp, J. Dalrymple, M. Ashley, A. S. Sengupta, Norikatsu Mio, Shinji Miyoki, Jun'ichi Yokoyama, J. Allen, N. Hepler, Akira Okutomi, Phil Willems, D. M. Strom, A. Yamamoto, Jolien D. E. Creighton, Lindy Blackburn, Matthew Evans, L. Cardenas, Yi Pan, Takashi Kuwabara, Richard J. K. Taylor, Gianpietro Cagnoli, Shihori Sakata, C. Aulbert, M. MacInnis, Keita Kawabe, R. S. Amin, Chunglee Kim, Seiji Kawamura, Hiroyuki Nakano, Reinhard Prix, Juri Agresti, A. Rizzi, V. Sandberg, K. Rawlins, A. Bunkowski, Shuzo Takemoto, S. Klimenko, Ryutaro Takahashi, W. R. Johnston, Masa-Katsu Fujimoto, Osamu Miyakawa, David H. Reitze, Christian J. Killow, G. Mendell, J. Myers, Shourov Chatterji, Lindon J. Robison, Helena Armandula, E. J. Elliffe, Suvadeep Bose, A. Ageev, Daisuke Tatsumi, A. Wilson, Kazuyuki Miura, Roy Williams, Kenji Soida, K. S. Ganezer, J. S. Noel, Hiromi Mizusawa, Namio Matsuda, J. Castiglione, Lisa M. Goggin, D. Rose, Hideki Asada, Jan Harms, K. Watts, T. Summerscales, Michael Landry, Roman Schnabel, C. A. Shapiro, Masaru Shibata, Stefan Goßler, K. T. Reilly, Toru Tanji, T. Nakamura, B. F. Whiting, David H. Shoemaker, V. Re, Y. Ogawa, Norihiko Kamikubota, Y. Hefetz, Gerhard Heinzel, C. Hardham, M. R. Smith, Masatake Ohashi, H. Overmier, Robert J. McCarthy, Linqing Wen, Shuichi Sato, Joseph D. Romano, C. King, Shoken M. Miyama, Kasem Mossavi, P. Charlton, A. Di Credico, I. A. Bilenko, V. Dergachev, Ian Taylor, David J. Ottaway, Laura Cadonati, G. Billingsley, D. Sellers, Amber Stuver, Sanichiro Yoshida, A. Ivanov, Y. Saito, J. E. Brau, Subhasish Mitra, D. Churches, P. G. Murray, J. H. Hough, C. Parameswariah, J. Langdale, G. P. Newton, M. Fyffe, Sandra E. Wiley, Gabriela Gonzalez, M. Hrynevych, Peter H. Sneddon, Graham Woan, Zong Hong Zhu, Robert L. Byer, Stuart Reid, Kevin C. Schlaufman, Scott Koranda, Akitoshi Ueda, A. Gillespie, Susan M. Scott, Teviet Creighton, Herbert Welling, F. Mann, Rainer Weiss, Kiminori Kondo, Herbert Walther, Benno Willke, R. W. P. Drever, Nergis Mavalvala, H. Radkins, R. L. Savage, L. Ruet, S. P. Vyachanin, M. Coles, L. Matone, M. Guenther, Yasufumi Kojima, E. Rotthoff, Misao Sasaki, Naoko Ohishi, B. C. Barish, Takaharu Kaneyama, M. Rakhmanov, Michael D. Smith, Bernard F. Schutz, Chad Hanna, G. Stapfer, J. Hanson, C. Torres, A. Rodriguez, S. Meshkov, C. Barker, X. Siemens, K. Kötter, Douglas R. Cook, Michael E Zucker, W. Tyler, Michele Zanolin, S. Seel, C. Wilkinson, G. H. Sanders, R. Lawrence, Mitsuru Musha, W. W. Johnson, B. Johnson, S. Nagano, R. L. Ward, K. D. Zaleski, D. Redding, J. Garofoli, Alessandra Buonanno, R. DeSalvo, Patrick Brady, C. A. Cantley, A. Sibley, Raymond G. Beausoleil, R. Balasubramanian, Ryuichi Fujita, I. Leonor, John K. Cannizzo, C. Robinson, Benjamin William Allen, Alberto Vecchio, M. A. Barton, Rana X. Adhikari, Yoshitaka Nagayama, Guido Mueller, Gareth Jones, B. Machenschalk, R. Rahkola, Pankaj Sarin, Karsten Danzmann, M. C. Sumner, B. Lantz, J. Chapsky, H. Yamamoto, Hideo Iguchi, Tatsuru Yoshida, P. Hoang, Manuel Luna, J. H. Romie, K. Bayer, F. Nocera, F. J. Raab, D.B. DeBra, T. Etzel, K. Y. Franzen, Keisuke Goda, Gavin Davies, Marco G. Tarallo, I. Salzman, D. Farnham, D. Steussy, B. Sears, Akito Araya, V. Schmidt, R. M. S. Schofield, David Jones, Hideaki Kudoh, Benjamin J. Owen, A. M. Gretarsson, Tomiyoshi Haruyama, W. O. Hamilton, R. Gustafson, Erik Katsavounidis, Eugeniy E. Mikhailov, B. J. Cusack, M. Hammond, Kimio Tsubono, Vicky Kalogera, J. Kern, Jeffrey A. Edlund, E. J. Daw, M. J. Lubinski, William E. Butler, D. B. Kozak, E. Myers, K. V. Tokmakov, Takayuki Tomaru, E. Messaritaki, S. Killbourn, Martin Hewitson, Koji Arai, R. Burgess, Daniel C. Woods, B. Rivera, D. Webber, Peter R. Saulson, Hisa-aki Shinkai, L. Jones, M. Lormand, H. Ding, R. Abbott, M. Fine, V. Quetschke, Sheila Rowan, James Whelan, P. Ajith, C. Vorvick, Takashi Uchiyama, Kunihito Ioka, M. Mageswaran, Peter Fritschel, S. Penn, Masao Tokunari, Vladimir B. Braginsky, K. Reithmaier, Andreas Freise, S. R. Rao, Robert Bennett, A. Libson, Marco Aurelio Diaz, D. I. Robertson, Erika D'Ambrosio, Pamela J. Russell, Souichi Telada, Junwei Cao, K. Riles, Martin P McHugh, M. H. P. M. van Putten, S. Tilav, Matthew Pitkin, J. Heefner, Toshitaka Yamazaki, Mayu Katsuki, P. Schwinberg, Yoshihide Kozai, Bangalore Suryanarayana Sathyaprakash, E. Black, Martin M. Fejer, Hideyuki Tagoshi, J. R. Smith, R. Bork, T. Nash, K. C. Cannon, J. Zweizig, R. Wooley, Kazuhiro Hayama, A. Sazonov, J. Mason, Ken-ichi Nakao, W. G. Anderson, K. Oohara, E. Maros, Peter Shawhan, S. Richman, M. Tibbits, B. P. Abbott, Yousuke Itoh, Oliver Jennrich, K. A. Thorne, J. Betzwieser, Kazuaki Kuroda, Koichi Waseda, N. Sato, M. Kawamura, S. Wen, A. Bullington, Michele Vallisneri, I. Zawischa, Robert Spero, Soumya D. Mohanty, Fumiko Kawazoe, D. Ugolini, Carsten Fallnich, Stefan Hild, S. Vass, L. Bogue, A. J. Weinstein, Ik Siong Heng, Shantanu Desai, J. W C McNabb, W. Wu, P. T. Beyersdorf, N. Zotov, W. Kells, Soma Mukherjee, Taketoshi Kasai, K. Mason, Sanjeev Dhurandhar, Kip S. Thorne, Badri Krishnan, Shigemi Otsuka, S. Ray-Majumder, D. Busby, Curt Cutler, T. Findley, C. Gray, Kentaro Somiya, Naoki Seto, D. Ouimette, M. C. Araya, Antony C. Searle, V. V. Frolov, Kevin M. Carter, Frank Seifert, C. N. Colacino, S. B. Anderson, A. Grant, S. Liu, V. Parameshwaraiah, L. Zhang, V. P. Mitrofanov, G. Traylor, Kenji Numata, Masaki Ando, Thomas Corbitt, Akiteru Takamori, Yusaku Hamuro, Joseph M. Kovalik, D. Chin, Stanislav Babak, Walid A. Majid, Yi Chen, M. Hennessy, Q. Z. Shu, David B. Tanner, M. W. Regehr, M. Sung, Duncan A. Brown, S. Wise, S. Grunewald, Brent Ware, Kouichi Sato, M. Pedraza, Maria Alessandra Papa, T. Akutsu, Kenneth G. Libbrecht, Kent Blackburn, N. A. Robertson, Carlo Ungarelli, Walter Winkler, Morag M. Casey, Harald Lück, P. R. Williams, M. Heurs, Toshikazu Suzuki, B. J. Winjum, A. Marin, Yoshio Nishi, A. C. Melissinos, B. Bochner, Massimo Tinto, David Crooks, Philippe Grandclément, P. J. Sutton, Haisheng Rong, Kazuhiro Yamamoto, N. Hindman, Toshifumi Futamase, P. Ehrens, K. Wette, Timothy Evans, R. Coldwell, D. Sigg, S. W. Ballmer, Y. Tsunesada, G. Moreno, J. Logan, R. K. Nayak, Yoshikazu Karasawa, R. J. Dupuis, Youhei Sato, H. Tariq, Shigenori Moriwaki, Vuk Mandic, Ken-ichi Ueda, J. A. Giaime, Katsuaki Kasahara, Eric K. Gustafson, T. T. Lyons, Albert Lazzarini, J. G. Rollins, T. Delker, F. Asiri, S. E. Whitcomb, Adrian C. Ottewill, K. Mailand, Krzysztof Belczynski, R. Mittleman, Kohei Takeno, B. Bland, Nelson Christensen, U. Weiland, Takahiro Tanaka, S. E. Seader, A. Hartunian, Stephen Fairhurst, O. Matherny, B. Barr, J. Worden, A. Rüdiger, Youhei Fujiki, R. Riesen, Roland Schilling, Nobuhiro Tsuda, Gregory M. Harry, M. Lei, I. Yakushin, Hirotaka Takahashi, T. Olson, Keisuke Taniguchi, Guenakh Mitselmakher, A. Khan, Virginio Sannibale, David E. McClelland, O. Spjeld, R. Zhu, Mitsuhiro Fukushima, C. Messenger, W. Hua, L. Sievers, Thomas Cokelaer, Yuriko Yanagi, Aya Sekido, Hideki Ishizuka, D. Barker, S. Chelkowski, S. Roddy, A. M. Sintes, Lee Samuel Finn, M. Barnes, Julien Sylvestre, Yoichi Aso, L. Wallace, R. Frey, S. Márka, Takakazu Shintomi, P. J. King, D. Grimmett, Philip Nutzman, Kenneth A. Strain, A. G. Wiseman, D. C. Coyne, A. Weidner, R. A. Mercer, B. O'Reilly, P. Csatorday, M. V. Plissi, Nobuyuki Kanda, Hartmut Grote, Yukiyoshi Iida, D. Jungwirth, P. E. Lindquist, Peter Aufmuth, V. Chickarmane, B. Bhawal, S. J. Berukoff, Keiko Kokeyama, M. Ito, The LIGO Scientific Collaboration, and TAMA Collaboration

Subjects
Nuclear and High Energy Physics, noise, Frequency band, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Coincidence, gravitational wave detectors, Coincident, 0103 physical sciences, black-hole coalescences, ddc:530, 010303 astronomy & astrophysics, QC, Physics, 010308 nuclear & particles physics, Gravitational wave, Bandwidth (signal processing), Detector, LIGO, Amplitude, gravitational waves, light interferometry, network, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
Abstract

We report on the first joint search for gravitational waves by the TAMA and LIGO collaborations. We looked for millisecond-duration unmodelled gravitational-wave bursts in 473 hr of coincident data collected during early 2003. No candidate signals were found. We set an upper limit of 0.12 events per day on the rate of detectable gravitational-wave bursts, at 90% confidence level. From simulations, we estimate that our detector network was sensitive to bursts with root-sum-square strain amplitude above approximately 1-3x10^{-19} Hz^{-1/2} in the frequency band 700-2000 Hz. We describe the details of this collaborative search, with particular emphasis on its advantages and disadvantages compared to searches by LIGO and TAMA separately using the same data. Benefits include a lower background and longer observation time, at some cost in sensitivity and bandwidth. We also demonstrate techniques for performing coincidence searches with a heterogeneous network of detectors with different noise spectra and orientations. These techniques include using coordinated signal injections to estimate the network sensitivity, and tuning the analysis to maximize the sensitivity and the livetime, subject to constraints on the background., Comment: 15 pages, 11 figures, to be submitted to Phys Rev D. Updated author list

Published
2005

8. Limits on gravitational-wave emission from selected pulsars using LIGO data

Author

Peter Aufmuth, Y. Hefetz, Gerhard Heinzel, C. Hardham, V. Chickarmane, C. Gray, Benno Willke, H. Tariq, P. Williams, Alessandra Buonanno, Erika D'Ambrosio, T. Summerscales, D. B. Kozak, K. D. Zaleski, Laura Cadonati, Susan M. Scott, Teviet Creighton, Herbert Walther, C. Torres, X. Siemens, K. Kötter, C. Messenger, B. Bhawal, Peter Fritschel, M. Lormand, M. Fine, G. Traylor, Thomas Corbitt, Akiteru Takamori, C. Vorvick, F. Nocera, Alicia M. Sintes, R. DeSalvo, P. G. Murray, T. Regimbau, C. I. Torrie, A. Heptonstall, G. Billingsley, Phil Willems, A. Bullington, L. Bogue, V. V. Frolov, Kip S. Thorne, R. L. Savage, D. M. Strom, J. A. Giaime, Eric K. Gustafson, J. H. Hough, M. Barnes, Julien Sylvestre, W. Hua, Shuhei Yoshida, D. Farnham, J. Romie, Douglas R. Cook, Walter Winkler, Michael Kramer, L. Matone, V. Parameshwaraiah, F. Asiri, A. M. Gretarsson, B. Lantz, W. G. Anderson, E. Messaritaki, I. Salzman, V. P. Mitrofanov, Michele Zanolin, S. Seel, Keisuke Goda, M. A. Barton, Shigeo Nagano, S. Roddy, N. A. Robertson, F. J. Raab, Harald Lück, W. R. Johnston, Peter Shawhan, Robert Spero, Soumya D. Mohanty, Jeffrey A. Edlund, D. Chin, Stanislav Babak, J. Garofoli, B. F. Whiting, M. Tibbits, B. P. Abbott, Benjamin J. Owen, Sheila Rowan, C. Wilkinson, H. Ward, Erik Katsavounidis, V. Re, Badri Krishnan, V. Sannibale, L. Wallace, R. Burgess, R. Frey, K. V. Tokmakov, William E. Butler, D.B. DeBra, N. Zotov, Albrecht Rüdiger, Antony C. Searle, M. J. Lubinski, A. Wilson, T. T. Lyons, R. Taylor, B. J. Cusack, Duncan A. Brown, Rainer Weiss, K. Y. Franzen, S. Vass, H. Overmier, Martin Hewitson, R. W. P. Drever, Vladimir B. Braginsky, John Worden, A. Ageev, Frank Seifert, Adrian C. Ottewill, D. I. Robertson, Graham Woan, W. W. Johnson, Joseph M. Kovalik, K. Riles, K. Mailand, J. Logan, R. K. Nayak, K. Mason, Robert L. Byer, Stuart Reid, Jan Harms, Martin P McHugh, Brent Ware, Krzysztof Belczynski, M. H. P. M. van Putten, D. Grimmett, Philip Nutzman, M. Hammond, J. Heefner, Sanjeev Dhurandhar, S. Ray-Majumder, W. Kells, D. Busby, C. A. Shapiro, S. Berukoff, Lindon J. Robison, Corey Cutler, H. Yamamoto, R. Mittleman, Nelson Christensen, A. Hartunian, Michael E Zucker, Jordan Camp, R. Rahkola, Yousuke Itoh, Helena Armandula, S. E. Whitcomb, E. J. Elliffe, S. Gossler, T. Findley, S. R. Rao, G. Mendell, J. Kern, M. Rakhmanov, L. Jones, M. Coles, Simon Chelkowski, S. Tilav, Bernard F. Schutz, C. A. Cantley, C. N. Colacino, A. G. Wiseman, G. Stapfer, A. S. Sengupta, G. Newton, J. Hanson, Benjamin William Allen, Robert Bennett, A. J. Weinstein, Karsten Danzmann, M. C. Sumner, W. Wu, John Veitch, Carlo Ungarelli, M. Ashley, M. Landry, Michael D. Smith, Robert J. McCarthy, Linqing Wen, C. Parameswariah, S. Meshkov, M. C. Araya, D. C. Coyne, W. O. Hamilton, Guido Mueller, D. Rose, E. Maros, M. MacInnis, Michele Vallisneri, Ik Siong Heng, Patrick Brady, K. Reithmaier, P. Russell, Andreas Freise, Matthew Evans, L. Cardenas, M. Malec, Scott Koranda, S. Killbourn, S. Márka, James Whelan, Yi Pan, Joseph D. Romano, C. King, Yi Chen, M. Hennessy, Q. Z. Shu, J. Langdale, M. Fyffe, S. Wise, Sandra E. Wiley, Gabriela Gonzalez, A. Grant, S. Liu, P. Schwinberg, A. Libson, Matthew Pitkin, I. Leonor, S. Grunewald, D. Steussy, B. Sears, R. J. Dupuis, Kasem Mossavi, R. Wooley, L. Zhang, Andrew Lyne, S. Klimenko, Marco Aurelio Diaz, Jolien D. E. Creighton, Vicky Kalogera, Shinji Miyoki, V. Schmidt, B. Bochner, K. Bayer, W. Majid, D. Barker, Lindy Blackburn, K. Rawlins, Chunglee Kim, M. Guenther, Gregory M. Harry, E. J. Daw, M. Lei, Roman Schnabel, V. Sandberg, J. E. Brau, Kenneth A. Strain, A. Weidner, Kenneth G. Libbrecht, Albert Lazzarini, R. A. Mercer, Roy Williams, D. Churches, T. Etzel, K. S. Ganezer, A. Chandler, Massimo Tinto, C. Aulbert, I. Zawischa, A. Sibley, S. Wen, Rana X. Adhikari, A. Khan, R. Gustafson, B. Machenschalk, K. Watts, K. T. Reilly, S. Penn, D. Redding, B. O'Reilly, A. Sazonov, David E. McClelland, J. W C McNabb, N. Hepler, R. Zhu, S. Chatterji, A. Ivanov, A. Rizzi, B. Bland, Seiji Kawamura, T. Olson, Reinhard Prix, H. Radkins, U. Weiland, Soma Mukherjee, D. Jungwirth, P. Hoang, S. Richman, Oliver Jennrich, Kevin M. Carter, J. Zweizig, P. Csatorday, S. B. Anderson, Osamu Miyakawa, David H. Reitze, Lee Samuel Finn, A. Marin, David H. Shoemaker, R. Amin, D. Webber, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, E. Black, David B. Tanner, M. W. Regehr, S. P. Vyachanin, W. Tyler, Raymond G. Beausoleil, Kevin C. Schlaufman, Peter H. Sneddon, Herbert Welling, Nergis Mavalvala, Martin M. Fejer, R. Balasubramanian, J. R. Smith, J. Mason, S. E. Seader, R. Bork, Christian J. Killow, T. Nash, K. A. Thorne, J. Betzwieser, D. Ugolini, B. C. Barish, M. V. Plissi, M. Pedraza, T. Delker, Kris Ryan, J. Rollins, Maria Alessandra Papa, I. Yakushin, F. Mann, Kent Blackburn, Alberto Vecchio, Hartmut Grote, Guenakh Mitselmakher, Carsten Fallnich, Stefan Hild, A. Bunkowski, K. Kawabe, B. Rivera, David Jones, M. Hrynevych, B. Johnson, M. Mageswaran, P. E. Lindquist, C. Barker, R. Schofield, M. Ito, L. Sievers, Thomas Cokelaer, Peter R. Saulson, H. Ding, J. Chapsky, R. Abbott, Stephen Fairhurst, A. L. Stuver, O. Matherny, Phil D. C. King, J. S. Noel, J. Castiglione, P. Charlton, M. R. Smith, D. Ouimette, A. Di Credico, B. Barr, I. A. Bilenko, V. Dergachev, Ian Taylor, David J. Ottaway, Philippe Grandclément, P. J. Sutton, Haisheng Rong, R. Riesen, Roland Schilling, G. H. Sanders, R. Lawrence, Gianpietro Cagnoli, J. Myers, Suvadeep Bose, Morag M. Casey, M. Heurs, B. J. Winjum, David Crooks, N. Hindman, E. Rotthoff, P. Ehrens, Timothy Evans, R. Coldwell, D. Sigg, S. W. Ballmer, G. Moreno, A. Gillespie, and The LIGO Scientific Collaboration

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Phase (waves), General Physics and Astronomy, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Gravity waves, Interferometric detectors, Strain limit, 01 natural sciences, General Relativity and Quantum Cosmology, Gravitation, Pulsar, 0103 physical sciences, ddc:530, 010303 astronomy & astrophysics, QC, Pulsars, Physics, 010308 nuclear & particles physics, Gravitational wave, Radio observation, Detector, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Gravitational effects, Astronomy, Gravitational-wave signals, LIGO, Upper limits, Interferometry, Amplitude, Gravitational-wave emission, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik, Radio pulsars, Coherent multidetector analysis
Abstract

We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multi-detector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational wave signals. The unprecedented sensitivity of the detectors allow us to set strain upper limits as low as a few times $10^{-24}$. These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than $10^{-5}$ for the four closest pulsars., Comment: 6 pages, 2 figures

Published
2005
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9. The status of GEO 600

Author

Graham Woan, Stuart Reid, Alexander Franzen, Bernard F. Schutz, C. N. Colacino, David Crooks, Alberto Vecchio, N. A. Robertson, A. Hepstonstall, C. Messenger, Soumya D. Mohanty, Stefan Goßler, Carlo Ungarelli, Soma Mukherjee, Herbert Welling, M. Malec, Richard J. K. Taylor, S. H. Huttner, Christian J. Killow, Gianpietro Cagnoli, Andreas Freise, M. V. Plissi, P. G. Murray, C. A. Cantley, R. Balasubramanian, Gerhard Heinzel, B. Machenschalk, Benno Willke, J. H. Hough, Benjamin William Allen, Karsten Danzmann, B. Barr, Matthew Pitkin, Michael Perreur-Lloyd, Shigeo Nagano, Hartmut Grote, Roland Schilling, A. Bunkowski, S. Babak, Morag M. Casey, D. I. Robertson, Thomas Cokelaer, M. Heurs, V. Re, S. Grunewald, Walter Winkler, Harald Lück, Simon Chelkowski, L. Ribichini, I. Zawischa, Curt Cutler, Andre Thüring, Badri Krishnan, E. J. Elliffe, Karsten Kötter, Ik Siong Heng, A. Grant, Carsten Fallnich, Stefan Hild, Frank Seifert, Maria Alessandra Papa, Henning Vahlbruch, Martin Hewitson, Alicia M. Sintes, R. J. Dupuis, H. Ward, Kenneth A. Strain, R. A. Mercer, Peter Aufmuth, Joseph D. Romano, John Veitch, Kasem Mossavi, Yousuke Itoh, Roman Schnabel, Ian Taylor, D. Churches, Peter H. Sneddon, Roger Jones, K. Kawabe, R. Davies, Albrecht Rüdiger, Sheila Rowan, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, J. R. Smith, P. Williams, Jan Harms, S. Berukoff, U. Weiland, G. P. Newton, C. Aulbert, and V. Leonhardt

Subjects
Acquisition Scheme, Physics, Record locking, Sideband, business.industry, Physics::Instrumentation and Detectors, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Port (circuit theory), Power (physics), Optics, Electronic engineering, Astronomical interferometer, High Energy Physics::Experiment, business, Sensitivity (electronics), QC
Abstract

Since December 2003, the gravitational-wave detector GEO 600 has routinely operated in the dual recycled mode, using a lock acquisition scheme based on the detection of optical sideband power at the dark port. With the detector locking very robustly, the current commissioning work is entirely dedicated to sensitivity improvements. We give a brief overview of the GEO 600 detector, the implementation of dual recycling, and summarize recent work regarding the increase in the detector sensitivity.

Published
2004

10. Analysis of LIGO data for gravitational waves from binary neutron stars

Author

B. Abbott, R. Abbott, R. Adhikari, A. Ageev, B. Allen, R. Amin, S. B. Anderson, W. G. Anderson, M. Araya, H. Armandula, F. Asiri, P. Aufmuth, C. Aulbert, S. Babak, R. Balasubramanian, S. Ballmer, B. C. Barish, D. Barker, C. Barker-Patton, M. Barnes, B. Barr, M. A. Barton, K. Bayer, R. Beausoleil, K. Belczynski, R. Bennett, S. J. Berukoff, J. Betzwieser, B. Bhawal, I. A. Bilenko, G. Billingsley, E. Black, K. Blackburn, B. Bland-Weaver, B. Bochner, L. Bogue, R. Bork, S. Bose, P. R. Brady, V. B. Braginsky, J. E. Brau, D. A. Brown, S. Brozek, A. Bullington, A. Buonanno, R. Burgess, D. Busby, W. E. Butler, R. L. Byer, L. Cadonati, G. Cagnoli, J. B. Camp, C. A. Cantley, L. Cardenas, K. Carter, M. M. Casey, J. Castiglione, A. Chandler, J. Chapsky, P. Charlton, S. Chatterji, Y. Chen, V. Chickarmane, D. Chin, N. Christensen, D. Churches, C. Colacino, R. Coldwell, M. Coles, D. Cook, T. Corbitt, D. Coyne, J. D. E. Creighton, T. D. Creighton, D. R. M. Crooks, P. Csatorday, B. J. Cusack, C. Cutler, E. D’Ambrosio, K. Danzmann, R. Davies, E. Daw, D. DeBra, T. Delker, R. DeSalvo, S. Dhurandhar, M. Díaz, H. Ding, R. W. P. Drever, R. J. Dupuis, C. Ebeling, J. Edlund, P. Ehrens, E. J. Elliffe, T. Etzel, M. Evans, T. Evans, C. Fallnich, D. Farnham, M. M. Fejer, M. Fine, L. S. Finn, É. Flanagan, A. Freise, R. Frey, P. Fritschel, V. Frolov, M. Fyffe, K. S. Ganezer, J. A. Giaime, A. Gillespie, K. Goda, G. González, S. Goßler, P. Grandclément, A. Grant, C. Gray, A. M. Gretarsson, D. Grimmett, H. Grote, S. Grunewald, M. Guenther, E. Gustafson, R. Gustafson, W. O. Hamilton, M. Hammond, J. Hanson, C. Hardham, G. Harry, A. Hartunian, J. Heefner, Y. Hefetz, G. Heinzel, I. S. Heng, M. Hennessy, N. Hepler, A. Heptonstall, M. Heurs, M. Hewitson, N. Hindman, P. Hoang, J. Hough, M. Hrynevych, W. Hua, R. Ingley, M. Ito, Y. Itoh, A. Ivanov, O. Jennrich, W. W. Johnson, W. Johnston, L. Jones, D. Jungwirth, V. Kalogera, E. Katsavounidis, K. Kawabe, S. Kawamura, W. Kells, J. Kern, A. Khan, S. Killbourn, C. J. Killow, C. Kim, C. King, P. King, S. Klimenko, P. Kloevekorn, S. Koranda, K. Kötter, J. Kovalik, D. Kozak, B. Krishnan, M. Landry, J. Langdale, B. Lantz, R. Lawrence, A. Lazzarini, M. Lei, V. Leonhardt, I. Leonor, K. Libbrecht, P. Lindquist, S. Liu, J. Logan, M. Lormand, M. Lubinski, H. Lück, T. T. Lyons, B. Machenschalk, M. MacInnis, M. Mageswaran, K. Mailand, W. Majid, M. Malec, F. Mann, A. Marin, S. Márka, E. Maros, J. Mason, K. Mason, O. Matherny, L. Matone, N. Mavalvala, R. McCarthy, D. E. McClelland, M. McHugh, P. McNamara, G. Mendell, S. Meshkov, C. Messenger, V. P. Mitrofanov, G. Mitselmakher, R. Mittleman, O. Miyakawa, S. Miyoki, S. Mohanty, G. Moreno, K. Mossavi, B. Mours, G. Mueller, S. Mukherjee, J. Myers, S. Nagano, T. Nash, H. Naundorf, R. Nayak, G. Newton, F. Nocera, P. Nutzman, T. Olson, B. O’Reilly, D. J. Ottaway, A. Ottewill, D. Ouimette, H. Overmier, B. J. Owen, M. A. Papa, C. Parameswariah, V. Parameswariah, M. Pedraza, S. Penn, M. Pitkin, M. Plissi, M. Pratt, V. Quetschke, F. Raab, H. Radkins, R. Rahkola, M. Rakhmanov, S. R. Rao, D. Redding, M. W. Regehr, T. Regimbau, K. T. Reilly, K. Reithmaier, D. H. Reitze, S. Richman, R. Riesen, K. Riles, A. Rizzi, D. I. Robertson, N. A. Robertson, L. Robison, S. Roddy, J. Rollins, J. D. Romano, J. Romie, H. Rong, D. Rose, E. Rotthoff, S. Rowan, A. Rüdiger, P. Russell, K. Ryan, I. Salzman, G. H. Sanders, V. Sannibale, B. Sathyaprakash, P. R. Saulson, R. Savage, A. Sazonov, R. Schilling, K. Schlaufman, V. Schmidt, R. Schofield, M. Schrempel, B. F. Schutz, P. Schwinberg, S. M. Scott, A. C. Searle, B. Sears, S. Seel, A. S. Sengupta, C. A. Shapiro, P. Shawhan, D. H. Shoemaker, Q. Z. Shu, A. Sibley, X. Siemens, L. Sievers, D. Sigg, A. M. Sintes, K. Skeldon, J. R. Smith, M. Smith, M. R. Smith, P. Sneddon, R. Spero, G. Stapfer, K. A. Strain, D. Strom, A. Stuver, T. Summerscales, M. C. Sumner, P. J. Sutton, J. Sylvestre, A. Takamori, D. B. Tanner, H. Tariq, I. Taylor, R. Taylor, K. S. Thorne, M. Tibbits, S. Tilav, M. Tinto, K. V. Tokmakov, C. Torres, C. Torrie, S. Traeger, G. Traylor, W. Tyler, D. Ugolini, M. Vallisneri, M. van Putten, S. Vass, A. Vecchio, C. Vorvick, S. P. Vyachanin, L. Wallace, H. Walther, H. Ward, B. Ware, K. Watts, D. Webber, A. Weidner, U. Weiland, A. Weinstein, R. Weiss, H. Welling, L. Wen, S. Wen, J. T. Whelan, S. E. Whitcomb, B. F. Whiting, P. A. Willems, P. R. Williams, R. Williams, B. Willke, A. Wilson, B. J. Winjum, W. Winkler, S. Wise, A. G. Wiseman, G. Woan, R. Wooley, J. Worden, I. Yakushin, H. Yamamoto, S. Yoshida, I. Zawischa, L. Zhang, N. Zotov, M. Zucker, J. Zweizig, and The LIGO Scientific Collaboration

Subjects
Nuclear and High Energy Physics, Gravitational-wave observatory, relativistic gravity, Milky Way, interferometer, Binary number, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, coalescence rates, General Relativity and Quantum Cosmology, 0103 physical sciences, ddc:530, 010306 general physics, QC, Astrophysics::Galaxy Astrophysics, detectors, pulsar, Physics, inspiraling compact binaries, 010308 nuclear & particles physics, Gravitational wave, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Galaxy, LIGO, laser, Neutron star, Interferometry, search templates, systems, forms, Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
Abstract

We report on a search for gravitational waves from coalescing compact binary systems in the Milky Way and the Magellanic Clouds. The analysis uses data taken by two of the three LIGO interferometers during the first LIGO science run and illustrates a method of setting upper limits on inspiral event rates using interferometer data. The analysis pipeline is described with particular attention to data selection and coincidence between the two interferometers. We establish an observational upper limit of $\mathcal{R}, Comment: 17 pages, 9 figures

Published
2004
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11. Status of the GEO600 gravitational wave detector

Author

Kenneth A. Strain, Gerhard Heinzel, Benno Willke, Ian Taylor, Andreas Freise, Walter Winkler, S. Gossler, Martin Hewitson, Alicia M. Sintes, S. Herden, R. Davies, Peter Aufmuth, L. Ribichini, I. Zawischa, David Crooks, Shigeo Nagano, A. Grant, Peter H. Sneddon, Benjamin J. Owen, R. Balasubramanian, V. Quetschke, Bangalore Suryanarayana Sathyaprakash, D. Churches, C. Aulbert, K. Kawabe, Alberto Vecchio, M. V. Plissi, Graham Woan, H. Ward, Hartmut Grote, A. Hepstonstall, Albrecht Ruediger, B. Barr, Soumya D. Mohanty, Curt Cutler, Bernard F. Schutz, U. Weiland, G. P. Newton, Roland Schilling, Maria Alessandra Papa, C. N. Colacino, M. Malec, K. Koetter, Karsten Danzmann, V. Leonhardt, N. A. Robertson, P. McNamara, J. H. Hough, Gianpietro Cagnoli, F. Seifert, Harald Lueck, Suvadeep Bose, Morag M. Casey, M. Heurs, Stanislav Babak, S. Berukoff, Oliver Jennrich, Carsten Fallnich, D. I. Robertson, Soma Mukherjee, Kenneth D. Skeldon, Herbert Welling, R. J. Dupuis, Kasem Mossavi, E. J. Elliffe, P. Williams, C. I. Torrie, Jan Harms, and Sheila Rowan

Subjects
Gravitational-wave observatory, Physics::Instrumentation and Detectors, Phase (waves), Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau, Gravity waves, law.invention, Laser interferometers, Optics, law, Interferometric gravitational wave detector, QC, GEO600, Konferenzschrift, QB, Physics, business.industry, Interferometers, Detector, Detectors, Laser, Gravitational wave detector, Instrument testing, High Energy Physics::Experiment, ddc:620, business, Gravitation
Abstract

The GE0600 laser interferometric gravitational wave detector is approaching the end of its commissioning phase which started in 1995. During a test run in January 2002 the detector was operated for 15 days in a power-recycled michelson configuration. The detector and environmental data which were acquired during this test run were used to test the data analysis code. This paper describes the subsystems of GE0600: the status of the detector by August 2002 and the plans towards the first science run. © 2003 SPIE

Published
2003
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12. Status of the GEO600 detector.

Author

H Lck, M Hewitson, P Ajith, B Allen, P Aufmuth, C Aulbert, S Babak, R Balasubramanian, B W Barr, S Berukoff, A Bunkowski, G Cagnoli, C A Cantley, M M Casey, S Chelkowski, Y Chen, D Churches, T Cokelaer, C N Colacino, and D R M Crooks

Published
2006

13. The GEO-HF project.

Author

B Willke, P Ajith, B Allen, P Aufmuth, C Aulbert, S Babak, R Balasubramanian, B W Barr, S Berukoff, A Bunkowski, G Cagnoli, C A Cantley, M M Casey, S Chelkowski, Y Chen, D Churches, T Cokelaer, C N Colacino, D R M Crooks, and C Cutler

Published
2006

14. Limits on gravitational-wave emission from selected pulsars using LIGO data.

Author

Abbott B, Abbott R, Adhikari R, Ageev A, Allen B, Amin R, Anderson SB, Anderson WG, Araya M, Armandula H, Ashley M, Asiri F, Aufmuth P, Aulbert C, Babak S, Balasubramanian R, Ballmer S, Barish BC, Barker C, Barker D, Barnes M, Barr B, Barton MA, Bayer K, Beausoleil R, Belczynski K, Bennett R, Berukoff SJ, Betzwieser J, Bhawal B, Bilenko IA, Billingsley G, Black E, Blackburn K, Blackburn L, Bland B, Bochner B, Bogue L, Bork R, Bose S, Brady PR, Braginsky VB, Brau JE, Brown DA, Bullington A, Bunkowski A, Buonanno A, Burgess R, Busby D, Butler WE, Byer RL, Cadonati L, Cagnoli G, Camp JB, Cantley CA, Cardenas L, Carter K, Casey MM, Castiglione J, Chandler A, Chapsky J, Charlton P, Chatterji S, Chelkowski S, Chen Y, Chickarmane V, Chin D, Christensen N, Churches D, Cokelaer T, Colacino C, Coldwell R, Coles M, Cook D, Corbitt T, Coyne D, Creighton JD, Creighton TD, Crooks DR, Csatorday P, Cusack BJ, Cutler C, D'Ambrosio E, Danzmann K, Daw E, DeBra D, Delker T, Dergachev V, DeSalvo R, Dhurandhar S, Di Credico A, Díaz M, Ding H, Drever RW, Dupuis RJ, Edlund JA, Ehrens P, Elliffe EJ, Etzel T, Evans M, Evans T, Fairhurst S, Fallnich C, Farnham D, Fejer MM, Findley T, Fine M, Finn LS, Franzen KY, Freise A, Frey R, Fritschel P, Frolov VV, Fyffe M, Ganezer KS, Garofoli J, Giaime JA, Gillespie A, Goda K, González G, Gossler S, Grandclément P, Grant A, Gray C, Gretarsson AM, Grimmett D, Grote H, Grunewald S, Guenther M, Gustafson E, Gustafson R, Hamilton WO, Hammond M, Hanson J, Hardham C, Harms J, Harry G, Hartunian A, Heefner J, Hefetz Y, Heinzel G, Heng IS, Hennessy M, Hepler N, Heptonstall A, Heurs M, Hewitson M, Hild S, Hindman N, Hoang P, Hough J, Hrynevych M, Hua W, Ito M, Itoh Y, Ivanov A, Jennrich O, Johnson B, Johnson WW, Johnston WR, Jones DI, Jones L, Jungwirth D, Kalogera V, Katsavounidis E, Kawabe K, Kawamura S, Kells W, Kern J, Khan A, Killbourn S, Killow CJ, Kim C, King C, King P, Klimenko S, Koranda S, Kötter K, Kovalik J, Kozak D, Krishnan B, Landry M, Langdale J, Lantz B, Lawrence R, Lazzarini A, Lei M, Leonor I, Libbrecht K, Libson A, Lindquist P, Liu S, Logan J, Lormand M, Lubinski M, Lück H, Lyons TT, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majid W, Malec M, Mann F, Marin A, Márka S, Maros E, Mason J, Mason K, Matherny O, Matone L, Mavalvala N, McCarthy R, McClelland DE, McHugh M, McNabb JW, Mendell G, Mercer RA, Meshkov S, Messaritaki E, Messenger C, Mitrofanov VP, Mitselmakher G, Mittleman R, Miyakawa O, Miyoki S, Mohanty S, Moreno G, Mossavi K, Mueller G, Mukherjee S, Murray P, Myers J, Nagano S, Nash T, Nayak R, Newton G, Nocera F, Noel JS, Nutzman P, Olson T, O'Reilly B, Ottaway DJ, Ottewill A, Ouimette D, Overmier H, Owen BJ, Pan Y, Papa MA, Parameshwaraiah V, Parameswariah C, Pedraza M, Penn S, Pitkin M, Plissi M, Prix R, Quetschke V, Raab F, Radkins H, Rahkola R, Rakhmanov M, Rao SR, Rawlins K, Ray-Majumder S, Re V, Redding D, Regehr MW, Regimbau T, Reid S, Reilly KT, Reithmaier K, Reitze DH, Richman S, Riesen R, Riles K, Rivera B, Rizzi A, Robertson DI, Robertson NA, Robison L, Roddy S, Rollins J, Romano JD, Romie J, Rong H, Rose D, Rotthoff E, Rowan S, Rüdiger A, Russell P, Ryan K, Salzman I, Sandberg V, Sanders GH, Sannibale V, Sathyaprakash B, Saulson PR, Savage R, Sazonov A, Schilling R, Schlaufman K, Schmidt V, Schnabel R, Schofield R, Schutz BF, Schwinberg P, Scott SM, Seader SE, Searle AC, Sears B, Seel S, Seifert F, Sengupta AS, Shapiro CA, Shawhan P, Shoemaker DH, Shu QZ, Sibley A, Siemens X, Sievers L, Sigg D, Sintes AM, Smith JR, Smith M, Smith MR, Sneddon PH, Spero R, Stapfer G, Steussy D, Strain KA, Strom D, Stuver A, Summerscales T, Sumner MC, Sutton PJ, Sylvestre J, Takamori A, Tanner DB, Tariq H, Taylor I, Taylor R, Taylor R, Thorne KA, Thorne KS, Tibbits M, Tilav S, Tinto M, Tokmakov KV, Torres C, Torrie C, Traylor G, Tyler W, Ugolini D, Ungarelli C, Vallisneri M, van Putten M, Vass S, Vecchio A, Veitch J, Vorvick C, Vyachanin SP, Wallace L, Walther H, Ward H, Ware B, Watts K, Webber D, Weidner A, Weiland U, Weinstein A, Weiss R, Welling H, Wen L, Wen S, Whelan JT, Whitcomb SE, Whiting BF, Wiley S, Wilkinson C, Willems PA, Williams PR, Williams R, Willke B, Wilson A, Winjum BJ, Winkler W, Wise S, Wiseman AG, Woan G, Wooley R, Worden J, Wu W, Yakushin I, Yamamoto H, Yoshida S, Zaleski KD, Zanolin M, Zawischa I, Zhang L, Zhu R, Zotov N, Zucker M, Zweizig J, Kramer M, and Lyne AG

Abstract

We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational-wave signals. The unprecedented sensitivity of the detectors allows us to set strain upper limits as low as a few times 10(-24). These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than 10(-5) for the four closest pulsars.

Published
2005
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