Sub-Femto-   g   Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results

Armano, M.; Audley, H.; Auger, G.; Baird, J.; Bassan, M.; Binétruy, Pierre; Born, M.; Bortoluzzi, D.; Brandt, Nico; Caleno, M; Carbone, L.; Cavalleri, A.; Cesarini, A.; Ciani, G.; Congedo, G.; Cruise, A. M.; Danzmann, K.; Silva, M. de Deus; Rosa, R. De; Díaz-Aguiló, Marc; Fiore, L. Di; Diepholz, I.; Dixon, George; Dolesi, R.; Dunbar, N.; Ferraioli, L.; Ferroni, V.; Fichter, Walter; Fitzsimons, E. D.; Flatscher, R.; Freschi, M.; Marín, A F García; Marirrodriga, C García; Gerndt, R.; Gesa, L.; Gibert, F.; Giardini, D.; Giusteri, R.; Guzmán, Felipe; Grado, A.; Grimani, C.; Grynagier, A; Grzymisch, J.; Harrison, I.; Heinzel, Gerhard; Hewitson, M.; Hollington, D.; Hoyland, D.; Hueller, M.; Inchauspé, H.; Jennrich, O.; Jetzer, P.; Johann, Ulrich; Johlander, B.; Karnesis, Nikolaos; Kaune, B.; Korsakova, Natalia; Killow, C. J.; Lobo, J. A.; Lloro, I.; Liu, L.; López-Zaragoza, J. P.; Maarschalkerweerd, R.; Mance, D.; Martín, V.; Martin-Polo, L.; Martino, J.; Martín-Porqueras, F.; Madden, S. C.; Mateos, I; McNamara, P. W.; Mendes, José F. G.; Mendes, L.; Monsky, A.; Nicolodi, Daniele; Nofrarías, M.; Paczkowski, S.; Perreur-Lloyd, M.; Petiteau, A.; Pivato, P.; Plagnol, E.; Prat, P.; Ragnit, U; Rais, B; Ramos-Castro, J.; Reiche, J.; Robertson, D. I.; Rozemeijer, H; Rivas, F.; Russano, G.; Sanjuán, Jose; Sarra, P; Schleicher, A; Shaul, D.; Slutsky, J.; Sopuerta, Carlos F.; Stanga, R.; Steier, Frank; Sumner, T. J.; Texier, D.; Thorpe, James Ira; Trenkel, C.; Tröbs, Michael; Tu, H. B.; Vetrugno, D.; Vitale, S.; Wand, Vinzenz; Wanner, G; Ward, H.; Warren, Carl; Wass, Peter; Wealthy, D; Weber, W. J.; Wissel, L.; Wittchen, A.; Zambotti, Andrea; Zanoni, Carlo; Ziegler, T.; Zweifel, P.

doi:10.1103/physrevlett.116.231101

articlePhysical Review LettersJun 7, 2016LVHYBRID OA

Sub-Femto- g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results

MAM. Armano HAH. Audley GAG. Auger JBJ. Baird MBM. Bassan

European Space Astronomy Centre · Leibniz University Hannover · +31 more institutions

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Abstract

We report the first results of the LISA Pathfinder in-flight experiment. The results demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with a relative acceleration noise with a square root of the power spectral density of 5.2±0.1 fm s^{-2}/sqrt[Hz], or (0.54±0.01)×10^{-15} g/sqrt[Hz], with g the standard gravity, for frequencies between 0.7 and 20 mHz. This value is lower than the LISA Pathfinder requirement by more than a factor 5 and within a factor 1.25 of the requirement for the LISA mission, and is compatible with Brownian noise from viscous damping due to the residual gas surrounding the test…

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Keywords

Pathfinder
Physics
Noise (video)
Gravitational wave
Gravitational acceleration
Algorithm
Astrophysics
Gravitation

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