Kokeyama, Keiko, Sato, Shuichi, Nishizawa, Atsushi, Kawamura, Seiji, Chen, Yanbei, Sugamoto, Akio
The displacement- and frequency-noise-free interferometer (DFI) is a multiple laser interferometer array for gravitational-wave detection free from both the displacement noise of optics and laser...
Ando, Masaki, Kawamura, Seiji, Sato, Shuichi, Nakamura, Takashi, Tsubono, Kimio, Araya, Akito, ...
DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory), which is a future space gravitational wave antenna. DECIGO is expected...
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...
Ando, Masaki, Kawamura, Seiji, Nakamura, Takashi, Tsubono, Kimio, Tanaka, Takahiro, Funaki, Ikkoh, ...
DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) which is a future space gravitational wave antenna. DECIGO is expected...
The Japanese space gravitational wave antenna; DECIGO (2008)
Kawamura, Seiji, Ando, Masaki, Nakamura, Takashi, Tsubono, Kimio, Tanaka, Takahiro, Funaki, Ikkoh, ...
DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. DECIGO is expected to open a new window of observation for gravitational...
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...
Sato, S., Kokeyama, Keiko, Kawamura, Seiji, Ward, R. L., Nishizawa, A., Chen, Yanbei, ...
We have demonstrated displacement- and frequency-noise-free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bi-directional Mach–Zehnder...
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...
Development of a signal-extraction scheme for resonant sideband extraction (2008)
Kokeyama, Keiko, Somiya, Kentaro, Kawazoe, Fumiko, Sato, S., Kawamura, Seiji
As a future plan, an advanced gravitational-wave detector will employ an optical configuration of resonant sideband extraction (RSE), achieved with an additional mirror at the signal-detection port...
Displacement noise free interferometory for gravitational wave detection (2008)
Sato, Shuichi, Kokeyama, Keiko, Kawamura, Seiji, Ward, R. L., Nishizawa, A., Chen, Yanbei, ...
We have demonstrated displacement- and frequency-noise-free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bidirectional Mach-Zehnder...
Ando, M., Kawamura, Seiji, Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...
DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) which is a future space gravitational wave antenna. DECIGO is expected...
The Japanese space gravitational wave antenna: DECIGO (2008)
Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...
DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. DECIGO is expected to open a new window of observation for gravitational...
The experimental plan of displacement- and frequency-noise free laser interferometer (2008)
Kokeyama, Keiko, Sato, S., Nishizawa, A., Kawamura, Seiji, Chen, Y., Ward, R., ...
We present the partial demonstration of displacement- and laser-noise free interferometer (DFI) and the next experimental plan to examine the complete configuration. A part of the full implementation...
The Japanese space gravitational wave antenna - DECIGO (2008)
Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...
DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. The goal of DECIGO is to detect gravitational waves from various kinds of...
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...
Sato, Shuichi, Kokeyama, Keiko, Ward, Robert L., Kawamura, Seiji, Chen, Yanbei, Pai, Archana, ...
We have demonstrated displacement- and frequency-noise-free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bidirectional Mach-Zehnder...
Sato, Shuichi, Kawamura, Seiji, Kokeyama, Keiko, Kawazoe, Fumiko, Somiya, Kentaro
Next generation gravitational wave antennas employ resonant sideband extraction (RSE) interferometers with Fabry-Perot cavities in the arms as an optical configuration. In order to realize stable,...
Interferometers for Displacement-Noise-Free Gravitational-Wave Detection (2007)
Chen, Yanbei, Pai, Archana, Somiya, Kentaro, Kawamura, Seiji, Sato, Shuichi, Kokeyama, Keiko, ...
We propose a class of displacement- and laser-noise free gravitational-wave-interferometer configurations, which does not sense non-geodesic mirror motions and laser noises, but provides...
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....
Interferometers for Displacement-Noise-Free Gravitational-Wave Detection (2006)
Chen, Yanbei, Pai, Archana, Somiya, Kentaro, Kawamura, Seiji, Sato, Shuichi, Kokeyama, Keiko, ...
We propose a class of displacement- and laser-noise-free gravitational-wave-interferometer configurations, which does not sense nongeodesic mirror motion and laser noise, but provides a nonvanishing...
Sato, Shuichi, Kawamura, Seiji, Kokeyama, Keiko, Ward, Robert L., Chen, Yanbei, Pai, Archana, ...
We have demonstrated displacement- and frequency-noise free laser interferometry (DFI) by partially implementing a recently proposed optical configuration using bi-directional Mach-Zehnder...
Interferometers for Displacement-Noise-Free Gravitational-Wave Detection (2006)
Chen, Yanbei, Pai, Archana, Somiya, Kentaro, Kawamura, Seiji, Sato, Shuichi, Kokeyama, Keiko, ...
We propose a class of displacement- and laser-noise free gravitational-wave-interferometer configurations, which does not sense non-geodesic mirror motions and laser noises, but provides...
Joint LIGO and TAMA300 search for gravitational waves from inspiralling neutron star binaries (2006)
Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Agresti, Juri, Ajith, P., ...
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...
Akutsu, Tomomi, Akutsu, Tomotadu, Ando, Masaki, Arai, Koji, Araya, Akito, Asada, H., ...
We analyze the data of the TAMA300 detector to search for gravitational waves from inspiraling compact star binaries with masses of the component stars in the range 1M[sun]–3M[sun]. In this...
The Japanese space gravitational wave antenna - DECIGO (2006)
Kawamura, Seiji, Nakamura, T., Ando, M., Seto, N., Tsubono, K., Numata, K., ...
DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. It aims at detecting various kinds of gravitational waves between 1 mHz and...
The Experimental plan of the 4m Resonant Sideband Extraction Prototype for The LCGT (2006)
Kawazoe, Fumiko, Kokeyama, Keiko, Sato, S., Miyakawa, O., Somiya, K., Fukushima, Mitsuhiro, ...
The 4m Resonant Sideband Extraction (RSE) interferometer is a planned prototype of the LCGT interferometer. The aim of the experiment is to operate a powerrecycled Broadband RSE interferometer with...
Downselect of the signal extraction scheme for LCGT (2006)
Kawazoe, Fumiko, Kokeyama, Keiko, Sato, S., Somiya, K., Fukushima, Mitsuhiro, Kawamura, Seiji, ...
Large Cryogenic Gravitational wave Telescope (LCGT) is the future Japanese gravitational-wave detector. It will employ the broadband resonant sideband extraction (RSE) as its optical configuration....
Diagonalizing sensing matrix of broadband RSE (2006)
Sato, Shuichi, Somiya, Kentaro, Kawazoe, Fumiko, Kawamura, Seiji, Kokeyama, Keiko
For a broadband-operated RSE interferometer, a simple and smart length sensing and control scheme was newly proposed. The sensing matrix could be diagonal, owing to a simple allocation of two RF...