Title Sensor Noise in LISA Pathfinder: In-Flight Performance of the Optical Test Mass Readout
Authors Armano, M. , Audley, H. , Baird, J. , Binetruy, P. , Born, M. , Bortoluzzi, D. , Brandt, N. , Castelli, E. , Cavalleri, A. , Cesarini, A. , Cruise, A. M. , Danzmann, K. , Silva, M. de Deus , Diepholz, I , Dixon, G. , Dolesi, R. , Ferraioli, L. , Ferroni, V , Fitzsimons, E. D. , Flatscher, R. , Freschi, M. , Garcia, A. , Gerndt, R. , Gesa, L. , Giardini, D. , Gibert, F. , Giusteri, R. , Grimani, C. , Grzymisch, J. , Guzman, F. , Harrison, I , Hartig, M-S , Heinzel, G. , Hewitson, M. , Hollington, D. , Hoyland, D. , Hueller, M. , Inchauspe, H. , Jennrich, O. , Jetzer, P. , Johann, U. , Johlander, B. , Karnesis, N. , Kaune, B. , Killow, C. J. , Korsakova, N. , Lobo, J. A. , Liu, L. , Lopez-Zaragoza, J. P. , Maarschalkerweerd, R. , Mance, D. , Martin, V , Martin-Polo, L. , Martin-Porqueras, F. , Martino, J. , McNamara, P. W. , Mendes, J. , Mendes, L. , Meshksar, N. , Monsky, A. , Nofrarias, M. , Paczkowski, S. , Perreur-Lloyd, M. , Petiteau, A. , Pivato, P. , Plagnol, E. , Ramos-Castro, J. , Reiche, J. , RIVAS GARCÍA, FRANCISCO, Robertson, D. , Russano, G. , Sanjuan, J. , Slutsky, J. , Sopuerta, C. F. , Steier, F. , Sumner, T. , Texier, D. , Thorpe, J. , Vetrugno, D. , Vitale, S. , Wand, V , Wanner, G. , Ward, H. , Wass, P. J. , Weber, W. J. , Wissel, L. , Wittchen, A. , Zweifel, P.
External publication Si
Means Phys. Rev. Lett.
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 9.18500
SJR Impact 3.24600
Publication date 02/04/2021
ISI 000652827400003
DOI 10.1103/PhysRevLett.126.131103
Abstract We report on the first subpicometer interferometer flown in space. It was part of ESA\'s Laser Interferometer Space Antenna (LISA) Pathfinder mission and performed the fundamental measurement of the positional and angular motion of two free-falling test masses. The interferometer worked immediately, stably, and reliably from switch on until the end of the mission with exceptionally low residual noise of 32.0(-1.7)(+2.4) fm/root Hz, significantly better than required. We present an upper limit for the sensor performance at millihertz frequencies and a model for the measured sensitivity above 200 mHz.
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