Details
| Original language | English |
|---|---|
| Article number | 071401 |
| Journal | Physical review letters |
| Volume | 134 |
| Issue number | 7 |
| Early online date | 18 Feb 2025 |
| Publication status | Published - 21 Feb 2025 |
Abstract
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. Magnetically 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 0.25-0.08+0.15 fm s-2/Hz at 1 mHz and 1.01-0.24+0.73 fm s-2/Hz at 0.1 mHz. We also discuss how the nonstationarities of the interplanetary magnetic field can affect these values during extreme space weather conditions.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 134, No. 7, 071401, 21.02.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Magnetic-Induced Force Noise in LISA Pathfinder Free-Falling Test Masses
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 - Cruise, A. M.
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 - Karnesis, N.
AU - Kaune, B.
AU - Korsakova, N.
AU - Killow, C. J.
AU - Liu, L.
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 - Martino, J.
AU - McNamara, P. W.
AU - Reiche, Jens
AU - Wanner, G.
AU - Wissel, L.
AU - Wittchen, A.
N1 - Publisher Copyright: © 2025 American Physical Society. American Physical Society.
PY - 2025/2/21
Y1 - 2025/2/21
N2 - 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. Magnetically 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 0.25-0.08+0.15 fm s-2/Hz at 1 mHz and 1.01-0.24+0.73 fm s-2/Hz at 0.1 mHz. We also discuss how the nonstationarities of the interplanetary magnetic field can affect these values during extreme space weather conditions.
AB - 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. Magnetically 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 0.25-0.08+0.15 fm s-2/Hz at 1 mHz and 1.01-0.24+0.73 fm s-2/Hz at 0.1 mHz. We also discuss how the nonstationarities of the interplanetary magnetic field can affect these values during extreme space weather conditions.
UR - http://www.scopus.com/inward/record.url?scp=85218157008&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.134.071401
DO - 10.1103/PhysRevLett.134.071401
M3 - Article
AN - SCOPUS:85218157008
VL - 134
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 7
M1 - 071401
ER -