Upper limits on gravitational-wave bursts radiated from stellar-core collapses in our galaxy
2005Published in:
- Class.Quant.Grav. 22 (2005) S1283-S1291
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Abstract: (IOP)
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 5.0×103events s−1on the burst gravitational-wave event rate in our galaxy with a confidence level of 90%.- 07.05.Kf
- 95.55.Ym
- 04.80.Nn
- 95.85.Sz
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