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Correlated magnetic noise in global networks of gravitational-wave detectors: Observations and implications

Thrane, E. and Christensen, N. and Schofield, R. M. S. (2013) Correlated magnetic noise in global networks of gravitational-wave detectors: Observations and implications. Physical Review D, 87 (12). Art. No. 123009 . ISSN 2470-0010. doi:10.1103/PhysRevD.87.123009.

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One of the most ambitious goals of gravitational-wave astronomy is to observe the stochastic gravitational-wave background. Correlated noise in two or more detectors can introduce a systematic error, which limits the sensitivity of stochastic searches. We report on measurements of correlated magnetic noise from Schumann resonances at the widely separated LIGO and Virgo detectors. We investigate the effect of this noise on a global network of gravitational-wave detectors and derive a constraint on the allowable coupling of environmental magnetic fields to test mass motion in gravitational-wave detectors. We find that while correlated noise from global electromagnetic fields could be safely ignored for initial LIGO stochastic searches, it could severely impact Advanced LIGO, Advanced Virgo, KAGRA, as well as third-generation detectors.

Item Type:Article
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URLURL TypeDescription Paper DOIArticle
Thrane, E.0000-0002-4418-3895
Alternate Title:Correlated magnetic noise in global networks of gravitational-wave interferometers: observations and implications
Additional Information:© 2013 American Physical Society. Received 11 March 2013; published 26 June 2013. We gratefully acknowledge the use of environmental monitoring data from the Virgo and LIGO experiments. We thank Alan Weinstein and Vuk Mandic for helpful comments. E. T. is a member of the LIGO Laboratory, which is supported by funding from United States National Science Foundation. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement No. PHY-0757058. N.C. and R. M. S. S. are supported by NSF Grants No. PHY-1204371 and No. PHY-0855686 respectively. This paper has been assigned LIGO document No. LIGO-P1200167.
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NSF Cooperative AgreementPHY-0757058
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Other Numbering System NameOther Numbering System ID
LIGO DocumentLIGO-P1200167
Issue or Number:12
Classification Code:PACS: 95.55.Ym
Record Number:CaltechAUTHORS:20130802-151851325
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39745
Deposited By: Tony Diaz
Deposited On:06 Aug 2013 18:38
Last Modified:09 Nov 2021 23:46

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