Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
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Date
2013
Authors
Aasi, J.
Abadie, J.
Abbott, B.
Abbott, R.
Abbott, T.
Abernathy, M.
Accadia, T.
Acernese, F.
Adams, C.
Adams, T.
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Journal article
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Physical Review D: Particles, Fields, Gravitation and Cosmology, 2013; 88(12):122004-1-122004-13
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J. Aasi ... D.J. Hosken ... W. Kim ... E.J. King ... J. Munch ... D. J. Ottaway ... P. J. Veitch
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Abstract
Long gamma-ray bursts (GRBs) have been linked to extreme core-collapse supernovae from massive stars. Gravitational waves (GW) offer a probe of the physics behind long GRBs. We investigate models of long-lived (~10–1000 s) GW emission associated with the accretion disk of a collapsed star or with its protoneutron star remnant. Using data from LIGO’s fifth science run, and GRB triggers from the Swift experiment, we perform a search for unmodeled long-lived GW transients. Finding no evidence of GW emission, we place 90% confidence-level upper limits on the GW fluence at Earth from long GRBs for three waveforms inspired by a model of GWs from accretion disk instabilities. These limits range from F<3:5 ergs cm⁻2 to F<1200 ergs cm⁻2, depending on the GRB and on the model, allowing us to probe optimistic scenarios of GW production out to distances as far as ≈ 33 Mpc. Advanced detectors are expected to achieve strain sensitivities 10× better than initial LIGO, potentially allowing us to probe the engines of the nearest long GRBs.
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© 2013 American Physical Society