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  Subtraction of temperature induced phase noise in the LISA frequency band

Nofrarias, M., Gibert, F., Karnesis, N., Garcia, A. F., Hewitson, M., Heinzel, G., et al. (2013). Subtraction of temperature induced phase noise in the LISA frequency band. Physical Review D, 87: 102003. doi:10.1103/PhysRevD.87.102003.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-AA44-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-AA45-C
Genre: Journal Article

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 Creators:
Nofrarias, M.1, Author              
Gibert, F., Author
Karnesis, N., Author
Garcia, A. F., Author
Hewitson, M.2, Author              
Heinzel, G.1, Author              
Danzmann, K.1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Abstract: Temperature fluctuations are expected to be one of the limiting factors for gravitational wave detectors in the very low frequency range. Here we report the characterisation of this noise source in the LISA Pathfinder optical bench and propose a method to remove its contribution from the data. Our results show that temperature fluctuations are indeed limiting our measurement below one millihertz, and that their subtraction leads to a factor 5.6 (15 dB) reduction in the noise level at the lower end of the LISA measurement band 10^{-4} Hz, which increases to 20.2 (26 dB) at even lower frequencies, i.e., 1.5x10^{-5} Hz. The method presented here can be applied to the subtraction of other noise sources in gravitational wave detectors in the general situation where multiple sensors are used to characterise the noise source.

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 Dates: 2013-02-222013
 Publication Status: Published in print
 Pages: 8 pages, 6 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1302.5628
DOI: 10.1103/PhysRevD.87.102003
URI: http://arxiv.org/abs/1302.5628
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 87 Sequence Number: 102003 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258