The Einstein@Home search for periodic gravitational waves in LIGO S4 data (2009)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
A search for periodic gravitational waves, from sources such as isolated rapidly-spinning neutron stars, was carried out using 510 hours of data from the fourth LIGO science run (S4). The search was...
The Einstein@Home search for periodic gravitational waves in early S5 LIGO data (2009)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
This paper reports on an all-sky search for periodic gravitational waves from sources such as deformed isolated rapidly spinning neutron stars. The analysis uses 840 hours of data from 66 days of the...
Kawazoe, Fumiko, Sugamoto, Akio, Leonhardt, Volker, Sato, Shuichi, Yamazaki, Toshitaka, Fukushima, Mitsuhiro, ...
Some next-generation gravitational-wave detectors, such as the American Advanced LIGO project and the Japanese LCGT project, plan to use power recycled resonant sideband extraction (RSE)...
Kawazoe, Fumiko, Fukushima, Mitsuhiro, Kawamura, Seiji, Leonhardt, Volker, Miyakawa, Osamu, Morioka, Tomoko, ...
Some next-generation gravitational-wave detectors, such as the American Advanced LIGO project and the Japanese LCGT project, plan to use power recycled resonant sideband extraction (RSE)...
Implications for the origin of GRB 070201 from LIGO observations (2008)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
We analyzed the available LIGO data coincident with GRB 070201, a short-duration, hard-spectrum gamma-ray burst (GRB) whose electromagnetically determined sky position is coincident with the spiral...
Astrophysically triggered searches for gravitational waves: status and prospects (2008)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
In gravitational-wave detection, special emphasis is put onto searches that focus on cosmic events detected by other types of astrophysical observatories. The astrophysical triggers, e. g. from...
A joint search for gravitational wave bursts with AURIGA and LIGO (2008)
Baggio, L., Bignotto, M., Bonaldi, M., Cerdonio, M., De Rosa, M., Falferi, P., ...
The first simultaneous operation of the AURIGA detector(63) and the LIGO observatory(64) was an opportunity to explore real data, joint analysis methods between two very different types of...
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
We present the results of a search for short-duration gravitational-wave bursts associated with 39 gamma-ray bursts (GRBs) detected by gamma-ray satellite experiments during LIGO's S2, S3, and S4...
Search for gravitational waves from binary inspirals in S3 and S4 LIGO data (2008)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
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...
All-sky search for periodic gravitational waves in LIGO S4 data (2008)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
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 x 10(-8) Hz s(-1) to...
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
We report on the methods and results of the first dedicated search for gravitational waves emitted during the inspiral of compact binaries with spinning component bodies. We analyze 788 hours of data...
Beating the spin-down limit on gravitational wave emission from the Crab pulsar (2008)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
We present direct upper limits on gravitational wave emission from the Crab pulsar using data from the first 9 months of the fifth science run of the Laser Interferometer Gravitational-wave...
Kawazoe, Fumiko, Sugamoto, Akio, Leonhardt, Volker, Sato, Shuichi, Yamazaki, Toshitaka, Fukushima, Mitsuhiro, ...
Some next-generation gravitational-wave detectors, such as the American Advanced LIGO project and the Japanese LCGT project, plan to use power recycled resonant sideband extraction (RSE)...
Search for Gravitational-Wave Bursts from Soft Gamma Repeaters (2008)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
We present a LIGO search for short-duration gravitational waves (GWs) associated with soft gamma ray repeater (SGR) bursts. This is the first search sensitive to neutron star f modes, usually...
First joint search for gravitational-wave bursts in LIGO and GEO 600 data (2008)
Abbott, B., Abbott, R., Adhikari, R., Ajith, P., Allen, Bruce, Allen, Gabrielle, ...
We present the results of the first joint search for gravitational-wave bursts by the LIGO and GEO 600 detectors. We search for bursts with characteristic central frequencies in the band 768-2048 Hz...
Kawazoe, Fumiko, Sato, Shuichi, Leonhardt, Volker, Miyakawa, Osamu, Morioka, Tomoko, Nishizawa, Atsushi, ...
LCGT plans to use tuned RSE as the optical configuration for its interferometer. A tuned RSE interferometer has five degrees of freedom that need to be controlled in order to operate a...
Abbott, B., Abbott, R., Adhikari, R., Boschi, V., Agresti, Juri, Ajith, P., ...
We report on a search for gravitational waves from binary black hole inspirals in the data from the second science run of the LIGO interferometers. The search focused on binary systems with component...
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
Data from the LIGO Livingston interferometer and the ALLEGRO resonant bar detector, taken during LIGO's fourth science run, were examined for cross-correlations indicative of a stochastic...
Upper limit map of a background of gravitational waves (2007)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
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...
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
We carry out two searches for periodic gravitational waves using the most sensitive few hours of data from the second LIGO science run. Both searches exploit fully coherent matched filtering and...
Upper limits on gravitational wave emission from 78 radio pulsars (2007)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
Search for gravitational-wave bursts in LIGO data from the fourth science run (2007)
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
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...
Abbott, B., Abbott, R., Adhikari, R., Agresti, Juri, Ajith, P., Allen, Bruce, ...
The Laser Interferometer Gravitational‐Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs....
Grote, Hartmut, Aufmuth, Peter, Aulbert, Carsten, Babak, S., Balasubramanian, R., Barr, B., ...
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...
Grote, Hartmut, Allen, Bruce, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., ...
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...
The Hannover thermal noise experiment (2004)
Leonhardt,Volker, Ribichini,Luciano, Lück,Harald, Danzmann,Karsten
To analyse the thermal noise of the pendulum mode of a suspended mirror, we interferometrically detect the differential movement of two mirrors suspended as multiple-stage pendulums. We present the...
Abbott,B., Abbott,F., Adhikari,R., Ageev,A., Allen,Bruce, Amin,R., ...
For 17 days in August and September 2002, the LIGO and GEO interferometer gravitational wave detectors were operated in coincidence to produce their first data for scientific analysis. Although the...
Upper limits on the strength of periodic gravitational waves from PSR J1939+2134 (2004)
Woan,G., Allen,Bruce, Abbott,B., Abbott,F., Adhikari,R., Amin,R., ...
The first science run of the LIGO and GEO gravitational wave detectors presented the opportunity to test methods of searching for gravitational waves from known pulsars. Here we present new direct...
Willke,Benno, Aufmuth,Peter, Aulbert,Carsten, Babak,S., Balasubramanian,R., Barr,B., ...
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...
An algorithm to compute the transfer function of a mechanical system (2004)
Ribichini,Luciano, Leonhardt,Volker, Lück,Harald, Danzmann,Karsten
Reliable and efficient algorithms are needed to model complex mechanical systems such as multiple stage pendulum suspensions. A possible approach is the one based on the input–output formalism....
Abbott,B., Abbott,F., Adhikari,R., Ageev,A., Allen,Bruce, Amin,R., ...
Data collected by the GEO 600 and LIGO interferometric gravitational wave detectors during their first observational science run were searched for continuous gravitational waves from the pulsar J1939...
Analysis of first LIGO science data for stochastic gravitational waves (2004)
Abbott,B., Abbott,F., Adhikari,R., Ageev,A., Allen,Bruce, Amin,R., ...
We present the analysis of between 50 and 100 h of coincident interferometric strain data used to search for and establish an upper limit on a stochastic background of gravitational radiation. These...
Analysis of LIGO data for gravitational waves from binary neutron stars (2004)
Abbott,B., Abbott,F., Adhikari,R., Ageev,A., Allen,Bruce, Amin,R., ...
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...
LIGO: S1 Science Results and Plans Beyond (2004)
Abbott,B., Abbott,F., Adhikari,R., Ageev,A., Allen,Bruce, Amin,R., ...
The Hannover thermal noise experiment (2004)
Leonhardt, Volker, Ribichini, Luciano, Lück, Harald, Danzmann, Karsten
To analyse the thermal noise of the pendulum mode of a suspended mirror, we interferometrically detect the differential movement of two mirrors suspended as multiple-stage pendulums. We present the...
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
For 17 days in August and September 2002, the LIGO and GEO interferometer gravitational wave detectors were operated in coincidence to produce their first data for scientific analysis. Although the...
Upper limits on the strength of periodic gravitational waves from PSR J1939+2134 (2004)
Woan, G., Allen, Bruce, Abbott, B., Abbott, F., Adhikari, R., Amin, R., ...
The first science run of the LIGO and GEO gravitational wave detectors presented the opportunity to test methods of searching for gravitational waves from known pulsars. Here we present new direct...
Willke, Benno, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., Barr, B. W., ...
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...
An algorithm to compute the transfer function of a mechanical system (2004)
Ribichini, Luciano, Leonhardt, Volker, Lück, Harald, Danzmann, Karsten
Reliable and efficient algorithms are needed to model complex mechanical systems such as multiple stage pendulum suspensions. A possible approach is the one based on the input–output formalism....
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
Data collected by the GEO 600 and LIGO interferometric gravitational wave detectors during their first observational science run were searched for continuous gravitational waves from the pulsar J1939...
Analysis of first LIGO science data for stochastic gravitational waves (2004)
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
We present the analysis of between 50 and 100 h of coincident interferometric strain data used to search for and establish an upper limit on a stochastic background of gravitational radiation. These...
Analysis of LIGO data for gravitational waves from binary neutron stars (2004)
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
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...
First upper limits from LIGO on gravitational wave bursts (2004)
Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
We report on a search for gravitational wave bursts using data from the first science run of the Laser Interferometer Gravitational Wave Observatory (LIGO) detectors. Our search focuses on bursts...
LIGO: S1 Science Results and Plans Beyond (2004)
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
Commissioning, characterization and operation of the dual-recycled GEO 600 (2004)
Smith, J. R., Allen, Bruce, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., ...
The German-British laser-interferometric gravitational-wave detector GEO 600 is currently being commissioned as part of a worldwide network of gravitational-wave detectors. GEO 600 recently became...
Strain, Kenneth A., Allen, Bruce, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., ...
The GEO 600 laser interferometer with 600m armlength is part of a worldwide network of gravitational wave detectors. GEO 600 is unique in having advanced multiple pendulum suspensions with a...
Analysis of LIGO data for gravitational waves from binary neutron stars (2004)
Abbott, B., Abbott, F., Adhikari, R., Ageev, A., Allen, Bruce, Amin, R., ...
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...
The GEO 600 Gravitational Wave Detector - Pulsar Prospects (2003)
Woan,G., Aufmuth,Peter, Aulbert,Carsten, Babak,S., Balasubramanian,R., Barr,B. W., ...
Detector characterization in GEO 600 (2003)
Sintes,Alicia M., Aufmuth,Peter, Aulbert,Carsten, Babak,S., Balasubramanian,R., Barr,B. W., ...
The GEO 600 interferometric gravitational wave detector conducted its first science run (S1) from 23 August 2002 to 9 September 2002. The GEO 600 data acquisition system is described together with...
The GEO 600 Gravitational Wave Detector - Pulsar Prospects (2003)
Woan, G., Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., Barr, B. W., ...
Detector characterization in GEO 600 (2003)
Sintes, Alicia M., Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., Barr, B. W., ...
The GEO 600 interferometric gravitational wave detector conducted its first science run (S1) from 23 August 2002 to 9 September 2002. The GEO 600 data acquisition system is described together with...
Status of the GEO600 gravitational wave detector (2003)
Willke, Benno, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., Barr, B. W., ...
The GEO600 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...
Displacement measurements on suspended mirrors for off-resonant thermal noise detection / (2003)
Hannover, University, Diss., 2004 (Nicht für den Austausch).
Hannover, University, Diss., 2004.
Mode-cleaning and injection optics of the gravitational-wave detector GEO600 (2003)
Gossler, Stefan, Casey, Morag M., Freise, Andreas, Grant, A., Grote, Hartmut, Heinzel, Gerhard, ...
The British–German interferometric gravitational-wave detector GEO600 uses two high-finesse triangular ring cavities of 8 m optical pathlength each, as an optical mode-cleaning system. The...
Towards measuring the off-resonant thermal noise of a pendulum mirror (2002)
Leonhardt,Volker, Ribichini,Luciano, Kloevekorn,P., Willke,Benno, Lück,Harald, Danzmann,Karsten
Thermal noise is one of the dominant noise sources in interferometric length measurements and can limit the sensitivity of gravitational wave detectors. Our goal is to analyse the off-resonant...
GEO 600 - Research, Progress and Prospects (2002)
Hough,Jim, Aufmuth,Peter, Balasubramanian,R., Barr,B. W., Brozec,O. S., Cagnoli,G., ...
The GEO 600 Gravitational Wave Detector (2002)
Willke,Benno, Aufmuth,Peter, Aulbert,Carsten, Babak,S., Balasubramanian,R., Barr,B. W., ...
The GEO 600 laser interferometer with 600 m armlength is part of a worldwide network of gravitational wave detectors. Due to the use of advanced technologies like multiple pendulum suspensions with a...
The GEO 600 Gravitational Wave Detector (2002)
Willke, Benno, Aufmuth, Peter, Aulbert, Carsten, Babak, Stanislav, Balasubramanian, R., Barr, B. W., ...
The GEO 600 laser interferometer with 600 m armlength is part of a worldwide network of gravitational wave detectors. Due to the use of advanced technologies like multiple pendulum suspensions with a...
GEO 600 - Research, Progress and Prospects (2002)
Hough, Jim, Aufmuth, Peter, Balasubramanian, R., Barr, B. W., Brozek, Oliver Sascha, Cagnoli, G., ...
Towards measuring the off-resonant thermal noise of a pendulum mirror (2002)
Leonhardt, Volker, Ribichini, Luciano, Kloevekorn, P., Willke, Benno, Lück, Harald, Danzmann, Karsten
Thermal noise is one of the dominant noise sources in interferometric length measurements and can limit the sensitivity of gravitational wave detectors. Our goal is to analyse the off-resonant...
Berlin, Akad. für Ärztl. Fortbildung d. DDR, Diss. A, 1986 (Nicht f.d. Austausch).