Bibcode
Abbott, B.; Abbott, R.; Adhikari, R.; Ageev, A.; Agresti, J.; Allen, B.; Allen, J.; Amin, R.; Anderson, S. B.; Anderson, W. G.; Araya, M.; Armandula, H.; Ashley, M.; Asiri, F.; Aufmuth, P.; Aulbert, C.; Babak, S.; Balasubramanian, R.; Ballmer, S.; Barish, B. C.; Barker, C.; Barker, D.; Barnes, M.; Barr, B.; Barton, M. A.; Bayer, K.; Beausoleil, R.; Belczynski, K.; Bennett, R.; Berukoff, S. J.; Betzwieser, J.; Bhawal, B.; Bilenko, I. A.; Billingsley, G.; Black, E.; Blackburn, K.; Blackburn, L.; Bland, B.; Bochner, B.; Bogue, L.; Bork, R.; Bose, S.; Brady, P. R.; Braginsky, V. B.; Brau, J. E.; Brown, D. A.; Bullington, A.; Bunkowski, A.; Buonanno, A.; Burgess, R.; Busby, D.; Butler, W. E.; Byer, R. L.; Cadonati, L.; Cagnoli, G.; Camp, J. B.; Cannizzo, J.; Cannon, K.; Cantley, C. A.; Cardenas, L.; Carter, K.; Casey, M. M.; 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, J. D. E.; Creighton, T. D.; Crooks, D. R. M.; Csatorday, P.; Cusack, B. J.; Cutler, C.; Dalrymple, J.; D'Ambrosio, E.; Danzmann, K.; Davies, G.; Daw, E.; Debra, D.; Delker, T.; Dergachev, V.; Desai, S.; Desalvo, R.; Dhurandhar, S.; Credico, A. Di; Díaz, M.; Ding, H. et al.
Bibliographical reference
Physical Review D, vol. 72, Issue 6, id. 062001
Advertised on:
9
2005
Journal
Citations
57
Refereed citations
50
Description
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
100-1100 Hz 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) μHz. The
sensitivity in terms of the root-sum-square (rss) strain amplitude lies
in the range of
hrss˜10-20-10-19Hz-1/2.
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 selected 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.