Other
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011cqgra..28w5008c&link_type=abstract
Classical and Quantum Gravity, Volume 28, Issue 23, pp. 235008 (2011).
Other
1
Scientific paper
The LIGO and Virgo detectors are sensitive to a variety of noise sources, such as instrumental artifacts and environmental disturbances. The Stochastic Transient Analysis Multi-detector Pipeline has been developed to search for long-duration (t ≳ 1 s) gravitational-wave (GW) signals. This pipeline can also be used to identify environmental noise transients. Here, we present an algorithm to determine when long-duration noise sources couple into the interferometers, as well as identify what these noise sources are. We analyze the cross-power between a GW strain channel and an environmental sensor, using pattern recognition tools to identify statistically significant structure in cross-power time-frequency maps. We identify interferometer noise from airplanes, helicopters, thunderstorms and other sources. Examples from LIGO’s sixth science run, S6, and Virgo’s third scientific run, VSR3, are presented.
Coughlin Michael W.
for LIGO Scientific Collaboration
Virgo Collaboration
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