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Publication : Physical review letters

Search for gravitational-wave bursts from soft gamma repeaters

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Physical review letters - 21 Nov 2008

Abbott et al.

Link to Pubmed [PMID] – 19113401

Phys. Rev. Lett. 2008 Nov;101(21):211102

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 considered the most efficient GW emitting modes. We find no evidence of GWs associated with any SGR burst in a sample consisting of the 27 Dec. 2004 giant flare from SGR 1806-20 and 190 lesser events from SGR 1806-20 and SGR 1900+14. The unprecedented sensitivity of the detectors allows us to set the most stringent limits on transient GW amplitudes published to date. We find upper limit estimates on the model-dependent isotropic GW emission energies (at a nominal distance of 10 kpc) between 3×10;{45} and 9×10;{52} erg depending on waveform type, detector antenna factors and noise characteristics at the time of the burst. These upper limits are within the theoretically predicted range of some SGR models.