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Search for Gravitational-wave Signals Associated with Gamma-Ray Bursts during the Second Observing Run of Advanced LIGO and Advanced Virgo

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Search for Gravitational-wave Signals Associated with Gamma-Ray Bursts during the Second Observing Run of Advanced LIGO and Advanced Virgo

dc.contributor.author	LIGO Scientific Collaboration
dc.contributor.author	Virgo Collaboration
dc.contributor.author	Abbott, B. P.
dc.contributor.author	Aloy Toras, Miguel Angel
dc.contributor.author	Cerdá Durán, Pablo
dc.contributor.author	Cordero Carrión, Isabel
dc.contributor.author	Font Roda, José Antonio
dc.contributor.author	Marquina Vila, Antonio
dc.contributor.author	Obergaulinger, M.
dc.contributor.author	Sanchis Gual, Nicolas
dc.contributor.author	Torres Forné, Alejandro
dc.date.accessioned	2020-01-10T14:57:15Z
dc.date.available	2020-01-10T14:57:15Z
dc.date.issued	2019
dc.identifier.uri	https://hdl.handle.net/10550/72547
dc.description.abstract	We present the results of targeted searches for gravitational-wave transients associated with gamma-ray bursts during the second observing run of Advanced LIGO and Advanced Virgo, which took place from 2016 November to 2017 August. We have analyzed 98 gamma-ray bursts using an unmodeled search method that searches for generic transient gravitational waves and 42 with a modeled search method that targets compact-binary mergers as progenitors of short gamma-ray bursts. Both methods clearly detect the previously reported binary merger signal GW170817, with p-values of <9.38 × 10−6 (modeled) and 3.1 × 10−4 (unmodeled). We do not find any significant evidence for gravitational-wave signals associated with the other gamma-ray bursts analyzed, and therefore we report lower bounds on the distance to each of these, assuming various source types and signal morphologies. Using our final modeled search results, short gamma-ray burst observations, and assuming binary neutron star progenitors, we place bounds on the rate of short gamma-ray bursts as a function of redshift for z ≤ 1. We estimate 0.07─1.80 joint detections with Fermi-GBM per year for the 2019─20 LIGO-Virgo observing run and 0.15─3.90 per year when current gravitational-wave detectors are operating at their design sensitivities.
dc.language.iso	eng
dc.relation.ispartof	Astrophysical Journal, 2019, vol. 886, num. 1, p. 75-1-75-15
dc.source	LIGO Scientific Collaboration Virgo Collaboration Abbott, B. P. Aloy Toras, Miguel Angel Cerdá Durán, Pablo Cordero Carrión, Isabel Font Roda, José Antonio Marquina Vila, Antonio Obergaulinger, M. Sanchis Gual, Nicolas Torres Forné, Alejandro 2019 Search for Gravitational-wave Signals Associated with Gamma-Ray Bursts during the Second Observing Run of Advanced LIGO and Advanced Virgo Astrophysical Journal 886 1 75-1 75-15
dc.subject	Gravitació
dc.subject	Astrofísica
dc.title	Search for Gravitational-wave Signals Associated with Gamma-Ray Bursts during the Second Observing Run of Advanced LIGO and Advanced Virgo
dc.type	journal article	es_ES
dc.date.updated	2020-01-10T14:57:15Z
dc.identifier.doi	https://doi.org/10.3847/1538-4357/ab4b48
dc.identifier.idgrec	135623
dc.rights.accessRights	open access	es_ES