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Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
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Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts

J. Aasi, J. Abadie, B.P. Abbott, R. Abbott, T. Abbott, M.R. Abernathy, T. Accadia, F. Acernese, C. Adams, T. Adams, …
Physical Review D - Particles, Fields, Gravitation and Cosmology, 卷.88(12), 122004
12/2013

摘要

Nuclear and High Energy Physics Physics and Astronomy (miscellaneous)
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 <sup>-</sup> 2 to F<1200 ergs cm <sup>-</sup> 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. © 2013 American Physical Society.

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