LIGO detector characterization in the second and third observing runs

LIGO Scientific Collaboration, Virgo Collaboration, D Davis, G S Wallace

Research output: Contribution to journalArticlepeer-review

Abstract

The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detectable gravitational-wave signals, and provided confirmation of all observed gravitational-wave events. In this work, we present the methods used to characterize the LIGO detectors and curate the publicly available datasets, including the LIGO strain data and data quality products. We describe the essential role of these datasets in LIGO–Virgo Collaboration analyses of gravitational-waves from both transient and persistent sources and include details on the provenance of these datasets in order to support analyses of LIGO data by the broader community. Finally, we explain anticipated changes in the role of detector characterization and current efforts to prepare for the high rate of gravitational-wave alerts and events in future observing runs.
Original languageEnglish
Article number135014
Number of pages47
JournalClassical and Quantum Gravity
Volume38
Issue number13
DOIs
Publication statusPublished - 3 Jun 2021

Keywords

  • LIGO
  • detector
  • second observing run
  • third observing run
  • O3a
  • Virgo
  • LIGO-Virgo collaboration
  • characterization
  • gravitational waves
  • alerts

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