{"paper":{"title":"NanoNewton electrostatic force actuators for femtoNewton-sensitive measurements: system performance test in the LISA Pathfinder mission","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.IM","authors_text":"A Cavalleri, A Cesarini, A Grado, A M Cruise, A Petiteau, A Wittchen, B Johlander, B Kaune, C F Sopuerta, C Grimani, C J Killow, C Praplan, C Zanoni, D Bortoluzzi, D Dal Bosco, D Giardini, D Hollington, D Hoyland, D I Robertson, D Mance, D Texier, D Vetrugno, E Castelli, E D Fitzsimons, E Plagnol, F Gibert, F Martin-Porqueras, F Rivas, G Dixon, G Heinzel, G Russano, G Wanner, H Audley, H Inchausp\\'e, H Ward, I Diepholz, I Harrison, J A Lobo, J Baird, J Grzymisch, J I Thorpe, J Martino, J Mendes, J Moerschell, J P L\\'opez-Zaragoza, J Ramos-Castro, J Reiche, J Slutsky, J ten Pierick, K Danzmann, L Di Fiore, L Ferraioli V Ferroni, L Gesa, (LISA Pathfinder Collaboration) M Armano, L Liu, L Martin-Polo, L Mendes, L Sala, L Wissel, M Bassan, M Born, M de Deus Silva, M Freschi, M Hewitson, M Hueller, M Nofrarias, M Perreur-Lloyd, M S Hartig, N Karnesis, N Korsakova, N Meshksar, O Jennrich, P Binetruy, P Jetzer, P Sarra, P Wass, P W McNamara, P Zweifel, R De Rosa, R Dolesi, R Giusteri, R Maarschalkerweerd, R Stanga, S L Schule-Walewski, S Paczkowski, S Vitale, T Sumner, V Chiavegato, V Mart\\'in, W J Weber","submitted_at":"2023-12-30T14:27:36Z","abstract_excerpt":"Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observatory sensitivity is limited by stray force noise. The system needs to apply forces of order 10$^{-9}$ N while limiting fluctuations in the measurement band to levels approaching 10$^{-15}$ N/Hz$^{1/2}$. We present here the LISA actuation system design, based on audio-frequency voltage carrier signals, and results of its in-flight performance test with the LIS"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.00884","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.00884/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}