Search for Gravitational Waves Associated with Gamma-Ray Bursts During LIGOs Fifth Science Run

Astronomy and Astrophysics – Astronomy

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Scientific paper

Gamma-ray bursts are believed to originate from some of the same systems that produce gravitational waves (GWs). For example, SGR flares, NS-NS or NS-BH mergers, and core-collapse supernovae are all promising sources of both GRB and GW emission. Using electromagnetically detected GRBs as triggers increases the sensitivity of a search for associated GWs by providing source location and arrival time information. Current LIGO GW-GRB searches are further enhanced by using coherent analysis methods which combine data from multiple interferometer sites.
More than 200 GRBs were observed by orbiting spacecraft over the course of LIGO's fifth science run (S5) which concluded in September 2007 and produced a full year of triple-coincident science-quality data at design sensitivity. We present here the status of a coherent S5 GW-GRB search that is sensitive to a wide range of GW signals.

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