Details
| Original language | English |
|---|---|
| Article number | 062001 |
| Journal | Physical Review D |
| Volume | 106 |
| Issue number | 6 |
| Publication status | Published - 15 Sept 2022 |
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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
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In: Physical Review D, Vol. 106, No. 6, 062001, 15.09.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Transient acceleration events in LISA Pathfinder data
T2 - Properties and possible physical origin
AU - LISA Pathfinder Collaboration
AU - Armano, M.
AU - Audley, H.
AU - Baird, J.
AU - Binetruy, P.
AU - Born, M.
AU - Bortoluzzi, D.
AU - Castelli, E.
AU - Cavalleri, A.
AU - Cesarini, A.
AU - Chiavegato, V.
AU - Cruise, A. M.
AU - Dal Bosco, D.
AU - Danzmann, K.
AU - De Deus Silva, M.
AU - Diepholz, I.
AU - Dixon, G.
AU - Dolesi, R.
AU - Ferraioli, L.
AU - Ferroni, V.
AU - Fitzsimons, E. D.
AU - Freschi, M.
AU - Gesa, L.
AU - Giardini, D.
AU - Gibert, F.
AU - Giusteri, R.
AU - Grimani, C.
AU - Grzymisch, J.
AU - Harrison, I.
AU - Hartig, M. S.
AU - Heinzel, G.
AU - Hewitson, M.
AU - Hollington, D.
AU - Hoyland, D.
AU - Hueller, M.
AU - Inchauspé, H.
AU - Jennrich, O.
AU - Jetzer, P.
AU - Johlander, B.
AU - Karnesis, N.
AU - Kaune, B.
AU - Korsakova, N.
AU - Killow, C. J.
AU - Lobo, J. A.
AU - López-Zaragoza, J. P.
AU - Maarschalkerweerd, R.
AU - Mance, D.
AU - Martín, V.
AU - Martin-Polo, L.
AU - Martin-Porqueras, F.
AU - Paczkowski, S.
AU - Reiche, Jens
AU - Wanner, Gudrun
AU - Wissel, L.
AU - Wittchen, A.
N1 - Funding Information: This work has been made possible by the LISA Pathfinder mission, which is part of the space-science program of the European Space Agency. We thank Paolo Chiggiato and the vacuum, surfaces and coatings group from Conseil Européen pour la Recherche Nucléaire (CERN), for very helpful discussions about the LPF outgassing environment. The Italian contribution has been supported by Istituto Nazionale di Fisica Nucleare (INFN) and Agenzia Spaziale Italiana (ASI), Project No. 2017-29-H.1-2020 “Attività per la fase A della missione LISA”. The UK groups wish to acknowledge support from the United Kingdom Space Agency (UKSA), the Scottish Universities Physics Alliance (SUPA), the University of Glasgow, the University of Birmingham, and Imperial College London. The Swiss contribution acknowledges the support of the Swiss Space Office via the PRODEX Programme of ESA, the support of the ETH Research Grant No. ETH-05 16-2 and the support of the Swiss National Science Foundation (Projects No. 162449 and No. 185051). The Albert Einstein Institute acknowledges the support of the German Space Agency, DLR. The work is supported by the Federal Ministry for Economic Affairs and Energy based on a resolution of the German Bundestag (No. FKZ 50OQ0501, No. FKZ 50OQ1601, and No. FKZ 50OQ1801). J. I. T. and J. S. acknowledge the support of the U.S. National Aeronautics and Space Administration (NASA). Spanish contribution has been supported by Contracts No. AYA2010-15709 (Ministerio de Ciencia e Innovación, MICINN), No. ESP2013-47637-P, No. ESP2015-67234-P, No. ESP2017-90084-P (Ministerio de Asuntos Económicos y Transformación Digital, MINECO), and No. PID2019–106515GB-I00 (MICINN). Support from AGAUR (Generalitat de Catalunya) Contract No. 2017-SGR-1469 is also acknowledged. M. N. acknowledges support from Fundacion General CSIC (Programa ComFuturo). F. R. acknowledges an FPI contract from MINECO. The French contribution has been supported by the CNES (Accord Specific de projet No. CNES 1316634/CNRS 103747), the CNRS, the Observatoire de Paris and the University Paris-Diderot. E. P. and H. I. would also like to acknowledge the financial support of the UnivEarthS Labex program at Sorbonne Paris Cité (No. ANR-10-LABX-0023 and No. ANR-11-IDEX-0005-02). N. K. would like to thank for the support from the CNES Fellowship.
PY - 2022/9/15
Y1 - 2022/9/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85138169876&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2205.11938
DO - 10.48550/arXiv.2205.11938
M3 - Article
AN - SCOPUS:85138169876
VL - 106
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 062001
ER -