TY - JOUR
T1 - Upper limits on gravitational-wave bursts radiated from stellar-core collapses in our galaxy
AU - Ando, Masaki
AU - Akutsu, Tomomi
AU - Akutsu, Tomotada
AU - Arai, Koji
AU - Aso, Youichi
AU - Fukushima, Mitsuhiro
AU - Hayama, Kazuhiro
AU - Kanda, Nobuyuki
AU - Kondo, Kazuhiro
AU - Mio, Norikatsu
AU - Miyoki, Shinji
AU - Moriwaki, Shigenori
AU - Nagano, Shigeo
AU - Sato, Shuichi
AU - Shibata, Masaru
AU - Tagoshi, Hideyuki
AU - Takahashi, Hirotaka
AU - Takahashi, Ryutaro
AU - Tatsumi, Daisuke
AU - Tsunesada, Yoshiki
AU - Yamazaki, Toshitaka
PY - 2005/9/21
Y1 - 2005/9/21
N2 - We present the results of observations with the TAMA300 gravitational-wave detector, targeting burst signals from stellar-core collapse events. We used an excess-power filter to extract gravitational-wave candidates, and developed two methods to reduce fake events caused by non-stationary noises of the detector. These analysis methods were applied to real data from the TAMA300 interferometric gravitational wave detector. We compared the data-processed results with those of a Monte Carlo simulation with an assumed galactic-event distribution model and with burst waveforms expected from numerical simulations of stellar-core collapses, in order to interpret the event candidates from an astronomical viewpoint. We set an upper limit of 5.0 × 103 events s-1 on the burst gravitational-wave event rate in our galaxy with a confidence level of 90%.
AB - We present the results of observations with the TAMA300 gravitational-wave detector, targeting burst signals from stellar-core collapse events. We used an excess-power filter to extract gravitational-wave candidates, and developed two methods to reduce fake events caused by non-stationary noises of the detector. These analysis methods were applied to real data from the TAMA300 interferometric gravitational wave detector. We compared the data-processed results with those of a Monte Carlo simulation with an assumed galactic-event distribution model and with burst waveforms expected from numerical simulations of stellar-core collapses, in order to interpret the event candidates from an astronomical viewpoint. We set an upper limit of 5.0 × 103 events s-1 on the burst gravitational-wave event rate in our galaxy with a confidence level of 90%.
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U2 - 10.1088/0264-9381/22/18/S42
DO - 10.1088/0264-9381/22/18/S42
M3 - Article
AN - SCOPUS:24644470539
SN - 0264-9381
VL - 22
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
IS - 18
ER -