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Title: Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
Authors: Aasi, J.
Abadie, J.
Iyer, B.R.
+150 Co-authors
Issue Date: Dec-2013
Publisher: American Physical Society
Citation: Physical Review D, 2013, Vol.88, p122004
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.
Description: Open Access
ISSN: 1550-2368
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Copyright: 2013 American Physical Society
Appears in Collections:Research Papers (TP)

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