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A guide to LIGO–Virgo detector noise and extraction of transient gravitational-wave signals

journal contribution
posted on 2023-05-21, 08:22 authored by Abbott, BP, Abbott, R, Karelle SiellezKarelle Siellez
The LIGO Scientific Collaboration and the Virgo Collaboration have cataloged eleven confidently detected gravitational-wave events during the first two observing runs of the advanced detector era. All eleven events were consistent with being from well-modeled mergers between compact stellar-mass objects: black holes or neutron stars. The data around the time of each of these events have been made publicly available through the gravitational-wave open science center. The entirety of the gravitational-wave strain data from the first and second observing runs have also now been made publicly available. There is considerable interest among the broad scientific community in understanding the data and methods used in the analyses. In this paper, we provide an overview of the detector noise properties and the data analysis techniques used to detect gravitational-wave signals and infer the source properties. We describe some of the checks that are performed to validate the analyses and results from the observations of gravitational-wave events. We also address concerns that have been raised about various properties of LIGO–Virgo detector noise and the correctness of our analyses as applied to the resulting data.

History

Publication title

Classical and Quantum Gravity

Volume

37

Issue

5

Article number

055002

Number

055002

ISSN

0264-9381

Department/School

School of Natural Sciences

Publisher

Iop Publishing Ltd

Place of publication

Dirac House, Temple Back, Bristol, England, Bs1 6Be

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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