Effects of data quality vetoes on a search for compact binary coalescences in Advanced LIGO's first observing run

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Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abernathy, M.R.; Acernese, F.; et, al.: Effects of data quality vetoes on a search for compact binary coalescences in Advanced LIGO's first observing run. In: Classical and Quantum Gravity 35 (2018), Nr. 6, 65010. DOI: https://doi.org/10.1088/1361-6382/aaaafa

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/3327

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The first observing run of Advanced LIGO spanned 4 months, from 12 September 2015 to 19 January 2016, during which gravitational waves were directly detected from two binary black hole systems, namely GW150914 and GW151226. Confident detection of gravitational waves requires an understanding of instrumental transients and artifacts that can reduce the sensitivity of a search. Studies of the quality of the detector data yield insights into the cause of instrumental artifacts and data quality vetoes specific to a search are produced to mitigate the effects of problematic data. In this paper, the systematic removal of noisy data from analysis time is shown to improve the sensitivity of searches for compact binary coalescences. The output of the PyCBC pipeline, which is a python-based code package used to search for gravitational wave signals from compact binary coalescences, is used as a metric for improvement. GW150914 was a loud enough signal that removing noisy data did not improve its significance. However, the removal of data with excess noise decreased the false alarm rate of GW151226 by more than two orders of magnitude, from 1 in 770 yr to less than 1 in 186 000 yr.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Fakultät für Mathematik und Physik

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1 image of flag of Germany Germany 31 81.58%
2 image of flag of Brazil Brazil 3 7.89%
3 image of flag of United States United States 2 5.26%
4 image of flag of France France 1 2.63%
5 image of flag of China China 1 2.63%

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