Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO
Name
PhysRevD.97.082002.pdf
Size
4.04 MB
Format
Adobe PDF
Checksum (MD5)
5bc9e8753f0664c3f31412180fc0c6b1
Author(s)
Covas, P. B.
Effler, A.
Goetz, E.
Meyers, P. M.
Neunzert, A.
Oliver, M.
Pearlstone, B. L.
Roma, V. J.
Schofield, R. M. S.
Adya, V. B.
Date Issued
April 2018
Journal
Physical Review D
Publisher
American Physical Society
Citation
Covas, P. B. et al. "Identification and mitigation of narrow spectral artifacts that degrade searches." Physical Review D 97, 8 (April 2018): 082002 © 2018 American Physical Society
Version
Final published version
Abstract
Searches are under way in Advanced LIGO and Virgo data for persistent gravitational waves from continuous sources, e.g. rapidly rotating galactic neutron stars, and stochastic sources, e.g. relic gravitational waves from the Big Bang or superposition of distant astrophysical events such as mergers of black holes or neutron stars. These searches can be degraded by the presence of narrow spectral artifacts (lines) due to instrumental or environmental disturbances. We describe a variety of methods used for finding, identifying and mitigating these artifacts, illustrated with particular examples. Results are provided in the form of lists of line artifacts that can safely be treated as non-astrophysical. Such lists are used to improve the efficiencies and sensitivities of continuous and stochastic gravitational wave searches by allowing vetoes of false outliers and permitting data cleaning.
MIT Department
MIT Kavli Institute for Astrophysics and Space Research
LIGO (Observatory : Massachusetts Institute of Technology)
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.97.082002
