Transient acceleration events in LISA Pathfinder data

Properties and possible physical origin

verfasst von

LISA Pathfinder Collaboration , M. Armano, H. Audley, J. Baird, P. Binetruy, M. Born, D. Bortoluzzi, E. Castelli, A. Cavalleri, A. Cesarini, V. Chiavegato, A. M. Cruise, D. Dal Bosco, 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, B. Johlander, N. Karnesis, B. Kaune, N. Korsakova, C. J. Killow, J. A. Lobo, J. P. López-Zaragoza, R. Maarschalkerweerd, D. Mance, V. Martín, L. Martin-Polo, F. Martin-Porqueras, S. Paczkowski, Jens Reiche, Gudrun Wanner, L. Wissel, A. Wittchen

Abstract

We present an in depth analysis of the transient events, or glitches, detected at a rate of about one per day in the differential acceleration data of LISA Pathfinder. We show that these glitches fall in two rather distinct categories: fast transients in the interferometric motion readout on one side, and true force transient events on the other. The former are fast and rare in ordinary conditions. The second may last from seconds to hours and constitute the majority of the glitches. We present an analysis of the physical and statistical properties of both categories, including a cross-analysis with other time series like magnetic fields, temperature, and other dynamical variables. Based on these analyses we discuss the possible sources of the force glitches and identify the most likely, among which the outgassing environment surrounding the test-masses stands out. We discuss the impact of these findings on the LISA design and operation, and some risk mitigation measures, including experimental studies that may be conducted on the ground, aimed at clarifying some of the questions left open by our analysis.

Organisationseinheit(en)

Institut für Gravitationsphysik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Institut für Quantenoptik

Externe Organisation(en)

European Space Astronomy Centre
Université de Paris
Universität Paris-Saclay
Università degli Studi di Trento
Istituto Nazionale di Fisica Nucleare (INFN)
NASA Goddard Space Flight Center (NASA-GSFC)
Fondazione Bruno Kessler
Universität Urbino „Carlo Bo“
University of Birmingham
ETH Zürich
Royal Observatory
Universidad Autónoma de Barcelona (UAB)
isardSAT
Europäische Weltraumforschungs- und Technologiezentrum (ESTEC)
Europäisches Raumflugkontrollzentrum (ESOC)
Imperial College London
Ruprecht-Karls-Universität Heidelberg
Universität Zürich (UZH)
Aristotle University of Thessaloniki (A.U.Th.)
University of Glasgow
Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)

Typ

Artikel

Journal

Physical Review D

Band

106

ISSN

2470-0010

Publikationsdatum

15.09.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Kern- und Hochenergiephysik

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2205.11938 (Zugang: Offen)
https://doi.org/10.1103/PhysRevD.106.062001 (Zugang: Geschlossen)