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|Titolo:||Search For Gravitational-wave Bursts Associated With Gamma-ray Bursts Using Data From Ligo Science Run 5 and Virgo Science Run 1|
|Autori Unitn:||Antonucci, Federica|
Prodi, Giovanni Andrea
|Anno di pubblicazione:||2010|
|Titolo del periodico:||THE ASTROPHYSICAL JOURNAL|
|Abstract:||We present the results of a search for gravitational-wave bursts (GWBs) associated with 137 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments during the fifth LIGO science run and first Virgo science run. The data used in this analysis were collected from 2005 November 4 to 2007 October 1, and most of the GRB triggers were from the Swift satellite. The search uses a coherent network analysis method that takes into account the different locations and orientations of the interferometers at the three LIGO-Virgo sites. We find no evidence for GWB signals associated with this sample of GRBs. Using simulated short-duration (<1 s) waveforms, we set upper limits on the amplitude of gravitational waves associated with each GRB. We also place lower bounds on the distance to each GRB under the assumption of a fixed energy emission in gravitational waves, with a median limit of D similar to 12 Mpc(E(GW)(iso)/0.01 M(circle dot)c(2))(1/2) for emission at frequencies around 150 Hz, where the LIGO-Virgo detector network has best sensitivity. We present astrophysical interpretations and implications of these results, and prospects for corresponding searches during future LIGO-Virgo runs.|
|Appare nelle tipologie:||03.1 Articolo su rivista (Journal article)|
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