Correlated magnetic noise in global networks of gravitational-wave detectors: Observations and implications
- Creators
-
Thrane, E.
- Christensen, N.
- Schofield, R. M. S.
Abstract
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.
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.Attached Files
Published - PhysRevD.87.123009.pdf
Submitted - 1303.2613v1.pdf
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Additional details
- Alternative title
- Correlated magnetic noise in global networks of gravitational-wave interferometers: observations and implications
- Eprint ID
- 39745
- Resolver ID
- CaltechAUTHORS:20130802-151851325
- NSF
- NSF Cooperative Agreement
- PHY-0757058
- NSF
- PHY-1204371
- NSF
- PHY-0855686
- Created
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2013-08-06Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Other Numbering System Name
- LIGO Document
- Other Numbering System Identifier
- LIGO-P1200167