Spacecraft and interplanetary contributions to the magnetic environment on-board LISA Pathfinder
Abstract
LISA Pathfinder (LPF) has been a space-based mission designed to test new technologies that will be required for a gravitational wave observatory in space. Magnetically driven forces play a key role in the instrument sensitivity in the low-frequency regime (mHz and below), the measurement band of interest for a space-based observatory. The magnetic field can couple to the magnetic susceptibility and remanent magnetic moment from the test masses and disturb them from their geodesic movement. LISA Pathfinder carried on-board a dedicated magnetic measurement subsystem with noise levels of 10 from 1 Hz down to 1 mHz. In this paper we report on the magnetic measurements throughout LISA Pathfinder operations. We characterise the magnetic environment within the spacecraft, study the time evolution of the magnetic field and its stability down to 20 Hz, where we measure values around 200 and identify two different frequency regimes, one related to the interplanetary magnetic field and the other to the magnetic field originating inside the spacecraft. Finally, we characterise the non-stationary component of the fluctuations of the magnetic field below the mHz and relate them to the dynamics of the solar wind.
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Cite
@article{arxiv.2005.03423,
title = {Spacecraft and interplanetary contributions to the magnetic environment on-board LISA Pathfinder},
author = {M. Armano and H. Audley and J. Baird and P. Binetruy and M. Born and D. Bortoluzzi and E. Castelli and A. Cavalleri and A. Cesarini and A. M. Cruise and K. Danzmann and M. de Deus Silva and I. Diepholz and G. Dixon and R. Dolesi and L. Ferraioli and V. Ferroni and E. D. Fitzsimons and M. Freschi and L. Gesa and F. Gibert and D. Giardini and R. Giusteri and C. Grimani and J. Grzymisch and I. Harrison and M-S. Hartig and G. Heinzel and M. Hewitson and D. Hollington and D. Hoyland and M. Hueller and H. Inchauspé and O. Jennrich and P. Jetzer and N. Karnesis and B. Kaune and N. Korsakova and C. J. Killow and J. A. Lobo and L. Liu and J. P. López-Zaragoza and R. Maarschalkerweerd and D. Mance and V. Martín and L. Martin-Polo and J. Martino and F. Martin-Porqueras and I. Mateos and P. W. McNamara and J. Mendes and L. Mendes and N. Meshksar and M. Nofrarias and S. Paczkowski and M. Perreur-Lloyd and A. Petiteau and P. Pivato and E. Plagnol and J. Ramos-Castro and J. Reiche and F. Rivas and D. I. Robertson and D. Roma-Dollase and G. Russano and J. Slutsky and C. F. Sopuerta and T. Sumner and D. Telloni and D. Texier and J. I. Thorpe and C. Trenkel and D. Vetrugno and S. Vitale and G. Wanner and H. Ward and P. J. Wass and D. Wealthy and W. J. Weber and L. Wissel and A. Wittchen and P. Zweifel},
journal= {arXiv preprint arXiv:2005.03423},
year = {2020}
}
Comments
16 pages, 17 figures. MNRAS LaTeX style file version 3.0