Magnetic-Induced Force Noise in LISA Pathfinder Free-Falling Test Masses

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PhysRevLett.134.071401.pdf (1.43 MB)

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https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.134.071401

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https://doi.org/10.1103/PhysRevLett.134.071401
 http://hdl.handle.net/11603/38093

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UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
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https://orcid.org/0000-0002-4429-0682

Date

2025-02-18

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journal articles
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Citation of Original Publication

Armano, M., H. Audley, J. Baird, P. Binetruy, M. Born, D. Bortoluzzi, E. Castelli, et al. "Magnetic-Induced Force Noise in LISA Pathfinder Free-Falling Test Masses". Physical Review Letters 134, no. 7 (February 18, 2025): 071401. https://doi.org/10.1103/PhysRevLett.134.071401.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

LISA Pathfinder was a mission designed to test key technologies required for gravitational wave detection in space. Magnetically driven forces play a key role in the instrument sensitivity in the low-frequency regime, which corresponds to the measurement band of interest for future space-borne gravitational wave observatories. Magnetically induced forces couple to the test mass motion, introducing a contribution to the relative acceleration noise between the free-falling test masses. In this Letter we present the first complete estimate of this term of the instrument performance model.