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Omicron: a tool to characterize transient noise in gravitational-wave detectors

Robinet, Florent, Arnaud, Nicolas, Leroy, Nicolas, Lundgren, Andrew, Macleod, Duncan ORCID: and McIver, Jessica 2021. Omicron: a tool to characterize transient noise in gravitational-wave detectors. SoftwareX 12 , 100620. 10.1016/j.softx.2020.100620

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The Omicron software is a tool developed to perform a multi-resolution time–frequency analysis of data from gravitational-wave detectors: the LIGO, Virgo, and KAGRA detectors. Omicron generates spectrograms from whitened data streams, offering a visual representation of transient detector noises and gravitational-wave events. In addition, these events can be parameterized with an optimized resolution. They can be written to disk to conduct offline noise characterization and gravitational-wave event validation studies. Omicron is optimized to process, in parallel, thousands of data streams recorded by gravitational-wave detectors. The Omicron software plays an important role in vetting gravitational-wave detection candidates and characterization of transient noise.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Additional Information: This is an open access article under the CC BY-NC-ND license (
ISSN: 2352-7110
Date of First Compliant Deposit: 17 December 2020
Date of Acceptance: 3 November 2020
Last Modified: 05 May 2023 16:15

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