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arXiv 2407.04427astro-ph.IMgr-qc
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LISA探路者自由下落测试质量中的磁致力噪声

Magnetic-induced force noise in LISA Pathfinder free-falling test masses

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… 展开作者

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, N Karnesis, B Kaune, N Korsakova, C J Killow, L Liu, J A Lobo, J P López-Zaragoza, R Maarschalkerweerd, D Mance, V Martín, J Martino, L Martin-Polo, F Martin-Porqueras, P W McNamara, J Mendes, L Mendes, N Meshksar, M Nofrarias, S Paczkowski, M Perreur-Lloyd, A Petiteau, P Pivato, E Plagnol, J Ramos-Castro, J Reiche, F Rivas, D I Robertson, G Russano, L Sala, D Serrano, J Slutsky, C F Sopuerta, T Sumner, D Texier, J I Thorpe, D Vetrugno, S Vitale, G Wanner, H Ward, P Wass, W J Weber, L Wissel, A Wittchen, P Zweifel

AI总结:

针对LISA探路者任务,首次完整估算了磁致力噪声对自由下落测试质量相对加速度的贡献,给出特定频段噪声值并讨论极端空间天气对其的影响,为空间引力波探测技术提供支撑。

摘要:

LISA探路者是一项旨在测试空间引力波探测所需关键技术的任务。磁驱动力在低频段对仪器灵敏度起着关键作用,该频段对应未来星载引力波天文台的目标测量带。磁致力与测试质量运动耦合,为自由下落测试质量间的相对加速度噪声引入贡献。在本文中,我们首次完整估算了仪器性能模型中的这一项。我们的结果确定了2017年2月噪声运行期间的磁致加速度噪声:1 mHz时为0.25₋₀.₀₈⁺⁰.¹⁵ fm s⁻²/√Hz,0.1 mHz时为1.01₋₀.₂₄⁺⁰.⁷³ fm s⁻²/√Hz。我们还讨论了行星际磁场的非平稳性在极端空间天气条件下如何影响这些值。

英文摘要:

LISA Pathfinder was a mission designed to test key technologies required for gravitational wave detection in space. Magnetically driven forces play a key role in the instrument sensitivity in the low-frequency regime, which corresponds to the measurement band of interest for future space-borne gravitational wave observatories. Magnetic-induced forces couple to the test mass motion, introducing a contribution to the relative acceleration noise between the free falling test masses. In this Letter we present the first complete estimate of this term of the instrument performance model. Our results set the magnetic-induced acceleration noise during the February 2017 noise run of $\rm 0.25_{-0.08}^{+0.15}\,fm\,s^{-2}/\sqrt{Hz}$ at 1 mHz and $\rm 1.01_{-0.24}^{+0.73}\, fm\,s^{-2}/\sqrt{Hz}$ at 0.1 mHz. We also discuss how the non-stationarities of the interplanetary magnetic field can affect these values during extreme space weather conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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