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  Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft

Gibert, F., Nofrarias, M., Karnesis, N., Gesa, L., Martín, V., Mateos, I., et al. (2015). Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft. Classical and quantum gravity, 32(4): 045014. doi:10.1088/0264-9381/32/4/045014.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-C501-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-C502-1
Genre: Journal Article

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 Creators:
Gibert, Ferran, Author
Nofrarias, Miquel, Author
Karnesis, Nikolaos, Author
Gesa, Lluís, Author
Martín, Víctor, Author
Mateos, Ignacio, Author
Lobo, Alberto, Author
Flatscher, Reinhold, Author
Gerardi, Domenico, Author
Burkhardt, Johannes, Author
Gerndt, Ruediger, Author
Robertson, David, Author
Ward, Henry, Author
McNamara, Paul William, Author
Guzman, Felipe1, Author              
Hewitson, Martin2, Author              
Diepholz, Ingo1, Author              
Reiche, Jens1, Author              
Heinzel, Gerhard1, Author              
Danzmann, Karsten1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24011              

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Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,General Relativity and Quantum Cosmology, gr-qc
 Abstract: During the On-Station Thermal Test campaign of the LISA Pathfinder the data and diagnostics subsystem was tested in nearly space conditions for the first time after integration in the satellite. The results showed the compliance of the temperature measurement system, obtaining temperature noise around $10^{-4}\,{\rm K}\, {\rm Hz}^{-1/2}$ in the frequency band of $1-30\;{\rm mHz}$. In addition, controlled injection of heat signals to the suspension struts anchoring the LISA Technology Package (LTP) Core Assembly to the satellite structure allowed to experimentally estimate for the first time the phase noise contribution through thermo-elastic distortion of the LTP interferometer, the satellite's main instrument. Such contribution was found to be at $10^{-12}\,{\rm m}\, {\rm Hz}^{-1/2}$, a factor of 30 below the measured noise at the lower end of the measurement bandwidth ($1\,{\rm mHz}$).

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 Dates: 2014-05-182014-12-122015
 Publication Status: Published in print
 Pages: Submitted to CQG
 Publishing info: -
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 Rev. Method: -
 Identifiers: arXiv: 1405.5442
DOI: 10.1088/0264-9381/32/4/045014
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 32 (4) Sequence Number: 045014 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925513480_1