Quasiphysical model for removing short glitches from LIGO and Virgo data

Ruxandra Bondarescu, Andrew Lundgren, Ronaldas Macas

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Abstract

Gravitational-wave observatories become more sensitive with each observing run, increasing the number of detected gravitational-wave signals. A limiting factor in identifying these signals is the presence of transient non-Gaussian noise, which generates glitches that can mimic gravitational-wave signals. Our work provides a quasiphysical model waveform for the four most common types of short transient glitches, which are particularly problematic in the search for high-mass black hole binaries. Our model has only a few, physically interpretable parameters: central frequency, bandwidth, phase, amplitude, and time. We demonstrate the accuracy of our glitch template by fitting and removing a large sample of glitches from a month of LIGO and Virgo data from the O3 observing run. We can effectively remove three of the four types of short transients. We finally map the ability of these glitches to mimic binary black hole signals.

Original languageEnglish
Article number122004
Number of pages14
JournalPhysical Review D
Volume108
Issue number12
DOIs
Publication statusPublished - 7 Dec 2023

Keywords

  • UKRI
  • STFC
  • ST/T000550/1
  • ST/V005715/1
  • ST/I006285/1

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