Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft

F. Gibert, M. Nofrarias, N. Karnesis, L. Gesa, V. Martín, I. Mateos, A. Lobo, R. Flatscher, D. Gerardi, J. Burkhardt, R. Gerndt, D. I. Robertson, H. Ward, P. W. McNamara, F. Guzmán, M. Hewitson, I. Diepholz, J. Reiche, G. Heinzel, K. Danzmann

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

During the on-station thermal test campaign of the LISA Pathfinder, the 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 K Hz-1/2 in the frequency band 1-30 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 us 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 MHz-1/2, a factor of 30 below the measured noise at the lower end of the measurement bandwidth (1 MHz).

Original languageEnglish (US)
Article number045014
JournalClassical and Quantum Gravity
Volume32
Issue number4
DOIs
StatePublished - Feb 19 2015
Externally publishedYes

Fingerprint

LISA (observatory)
spacecraft
struts
noise temperature
temperature measurement
interferometers
assembly
stations
injection
bandwidth
heat
estimates

Keywords

  • Gravitational waves
  • Laser interferometer
  • LISA Pathfinder
  • Low frequency
  • Temperature noise
  • Thermal diagnostics

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Gibert, F., Nofrarias, M., Karnesis, N., Gesa, L., Martín, V., Mateos, I., ... Danzmann, K. (2015). Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft. Classical and Quantum Gravity, 32(4), [045014]. https://doi.org/10.1088/0264-9381/32/4/045014

Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft. / Gibert, F.; Nofrarias, M.; Karnesis, N.; Gesa, L.; Martín, V.; Mateos, I.; Lobo, A.; Flatscher, R.; Gerardi, D.; Burkhardt, J.; Gerndt, R.; Robertson, D. I.; Ward, H.; McNamara, P. W.; Guzmán, F.; Hewitson, M.; Diepholz, I.; Reiche, J.; Heinzel, G.; Danzmann, K.

In: Classical and Quantum Gravity, Vol. 32, No. 4, 045014, 19.02.2015.

Research output: Contribution to journalArticle

Gibert, F, Nofrarias, M, Karnesis, N, Gesa, L, Martín, V, Mateos, I, Lobo, A, Flatscher, R, Gerardi, D, Burkhardt, J, Gerndt, R, Robertson, DI, Ward, H, McNamara, PW, Guzmán, F, Hewitson, M, Diepholz, I, Reiche, J, Heinzel, G & Danzmann, K 2015, 'Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft', Classical and Quantum Gravity, vol. 32, no. 4, 045014. https://doi.org/10.1088/0264-9381/32/4/045014
Gibert F, Nofrarias M, Karnesis N, Gesa L, Martín V, Mateos I et al. Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft. Classical and Quantum Gravity. 2015 Feb 19;32(4). 045014. https://doi.org/10.1088/0264-9381/32/4/045014
Gibert, F. ; Nofrarias, M. ; Karnesis, N. ; Gesa, L. ; Martín, V. ; Mateos, I. ; Lobo, A. ; Flatscher, R. ; Gerardi, D. ; Burkhardt, J. ; Gerndt, R. ; Robertson, D. I. ; Ward, H. ; McNamara, P. W. ; Guzmán, F. ; Hewitson, M. ; Diepholz, I. ; Reiche, J. ; Heinzel, G. ; Danzmann, K. / Thermo-elastic induced phase noise in the LISA Pathfinder spacecraft. In: Classical and Quantum Gravity. 2015 ; Vol. 32, No. 4.
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AU - Gerardi, D.

AU - Burkhardt, J.

AU - Gerndt, R.

AU - Robertson, D. I.

AU - Ward, H.

AU - McNamara, P. W.

AU - Guzmán, F.

AU - Hewitson, M.

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AU - Reiche, J.

AU - Heinzel, G.

AU - Danzmann, K.

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