Tilt-to-length coupling in LISA Pathfinder: long-term stability

The tilt-to-length coupling during the LISA Pathfinder mission has been numerically and analytically modeled for particular time spans. In this work, we investigate the long-term stability of the coupling coefficients of this noise. We show that they drifted slowly (by 1 μm/rad and 6 ×10−6 in 100 da...

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Main Authors: Armano, Michele (Author) , Audley, H. (Author) , Baird, J. (Author) , Binetruy, P. (Author) , Born, M. (Author) , Bortoluzzi, D. (Author) , Castelli, E. (Author) , Cavalleri, A. (Author) , Cesarini, A. (Author) , Cruise, A. M. (Author) , Danzmann, K. (Author) , de Deus Silva, M. (Author) , Diepholz, I. (Author) , Dixon, G. (Author) , Dolesi, R. (Author) , Ferraioli, L. (Author) , Ferroni, V. (Author) , Fitzsimons, E. D. (Author) , Freschi, M. (Author) , Gesa, L. (Author) , Giardini, D. (Author) , Gibert, F. (Author) , Giusteri, R. (Author) , Grimani, C. (Author) , Grzymisch, J. (Author) , Harrison, I. (Author) , Hartig, M-S. (Author) , Heinzel, G. (Author) , Hewitson, M. (Author) , Hollington, D. (Author) , Hoyland, D. (Author) , Hueller, M. (Author) , Inchauspé, Henri (Author) , Jennrich, O. (Author) , Jetzer, P. (Author) , Johann, U. (Author) , Johlander, B. (Author) , Karnesis, N. (Author) , Kaune, B. (Author) , Killow, C. J. (Author) , Korsakova, N. (Author) , Lobo, J. A. (Author) , López-Zaragoza, J. P. (Author) , Maarschalkerweerd, R. (Author) , Mance, D. (Author) , Martín, V. (Author) , Martin-Polo, L. (Author) , Martin-Porqueras, F. (Author) , Martino, J. (Author) , McNamara, P. W. (Author) , Mendes, J. (Author) , Mendes, L. (Author) , Meshksar, N. (Author) , Nofrarias, M. (Author) , Paczkowski, S. (Author) , Perreur-Lloyd, M. (Author) , Petiteau, A. (Author) , Plagnol, E. (Author) , Ramos-Castro, J. (Author) , Reiche, J. (Author) , Rivas, F. (Author) , Robertson, D. I. (Author) , Russano, G. (Author) , Sanjuan, J. (Author) , Slutsky, J. (Author) , Sopuerta, C. F. (Author) , Sumner, T. (Author) , Texier, D. (Author) , Thorpe, J. I. (Author) , Vetrugno, D. (Author) , Vitale, S. (Author) , Wanner, G. (Author) , Ward, H. (Author) , Wass, P. J. (Author) , Weber, W. J. (Author) , Wissel, L. (Author) , Wittchen, A. (Author) , Zweifel, P. (Author)
Format: Article (Journal)
Language:English
Published: 2024
In: Physical review
Year: 2024, Volume: 110, Issue: 6, Pages: 1-14
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.063005
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.110.063005
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.110.063005
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Author Notes:M. Armano, H. Audley, J. Baird, P. Binetruy, M. Born, D. Bortoluzzi, E. Castelli, A. Cavalleri, A. Cesarini, A. M. Cruise, K. Danzmann, M. de Deus Silva, I. Diepholz, G. Dixon, R. Dolesi, L. Ferraioli, V. Ferroni, E.D. Fitzsimons, M. Freschi, L. Gesa, D. Giardini, F. Gibert, R. Giusteri, C. Grimani, J. Grzymisch, I. Harrison, M-S. Hartig, G. Heinzel, M. Hewitson, D. Hollington, D. Hoyland, M. Hueller, H. Inchauspé, O. Jennrich, P. Jetzer, U. Johann, B. Johlander, N. Karnesis, B. Kaune, C.J. Killow, N. Korsakova, J.A. Lobo, J.P. López-Zaragoza, R. Maarschalkerweerd, D. Mance, V. Martín, L. Martin-Polo, F. Martin-Porqueras, J. Martino, P.W. McNamara, J. Mendes, L. Mendes, N. Meshksar, M. Nofrarias, S. Paczkowski, M. Perreur-Lloyd, A. Petiteau, E. Plagnol, J. Ramos-Castro, J. Reiche, F. Rivas, D.I. Robertson, G. Russano, J. Sanjuan, J. Slutsky, C.F. Sopuerta, T. Sumner, D. Texier, J.I. Thorpe, D. Vetrugno, S. Vitale, G. Wanner, H. Ward, P.J. Wass, W.J. Weber, L. Wissel, A. Wittchen, and P. Zweifel
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Summary:The tilt-to-length coupling during the LISA Pathfinder mission has been numerically and analytically modeled for particular time spans. In this work, we investigate the long-term stability of the coupling coefficients of this noise. We show that they drifted slowly (by 1 μm/rad and 6 ×10−6 in 100 days) and were strongly correlated to temperature changes within the satellite (8 μm/rad/K and 30×10−6/K). Based on analytical tilt-to-length coupling models, we attribute the temperature-driven coupling changes to rotations of the test masses and small distortions in the optical setup. Particularly, our findings lead to the conclusion that LISA Pathfinder’s optical baseplate was bent during the cooldown experiment, which started in late 2016 and lasted several months.
Item Description:Veröffentlicht: 3. September 2024
Gesehen am 11.06.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.063005