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All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run

Citation

Abbott, BP and Abbott, R and Siellez, K and Zweizig, J, LIGO Scientific Collaboration and Virgo Collaboration, All-sky search for long-duration gravitational-wave transients in the second Advanced LIGO observing run, Physical Review D: covering particles, fields, gravitation, and cosmology, 99, (10) Article 104033. ISSN 2470-0010 (2019) [Refereed Article]


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Copyright Statement

2019 American Physical Society. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. Must link to published article.

DOI: doi:10.1103/PhysRevD.99.104033

Abstract

We present the results of a search for long-duration gravitational-wave transients in the data from the Advanced LIGO second observation run; we search for gravitational-wave transients of 2500s duration in the 242048Hz frequency band with minimal assumptions about signal properties such as waveform morphologies, polarization, sky location or time of occurrence. Signal families covered by these search algorithms include fallback accretion onto neutron stars, broadband chirps from innermost stable circular orbit waves around rotating black holes, eccentric inspiral-merger-ringdown compact binary coalescence waveforms, and other models. The second observation run totals about 118.3 days of coincident data between November 2016 and August 2017. We find no significant events within the parameter space that we searched, apart from the already-reported binary neutron star merger GW170817. We thus report sensitivity limits on the root-sum-square strain amplitude hrss at 50% efficiency. These sensitivity estimates are an improvement relative to the first observing run and also done with an enlarged set of gravitationalwave transient waveforms.

Item Details

Item Type:Refereed Article
Keywords:long-duration gravitational-wave transients, gravitational waves, LIGO
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:General relativity and gravitational waves
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Siellez, K (Dr Karelle Siellez)
ID Code:151937
Year Published:2019
Web of Science® Times Cited:22
Deposited By:Physics
Deposited On:2022-08-09
Last Modified:2022-09-26
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