Achieving Geodetic Motion for LISA Test Masses: Ground Testing Results

L. Carbone, A. Cavalleri, R. Dolesi, C. D. Hoyle, M. Hueller, S. Vitale, and W. J. Weber
Phys. Rev. Lett. 91, 151101 – Published 8 October 2003; Erratum Phys. Rev. Lett. 91, 179903 (2003)

Abstract

The low-frequency resolution of space-based gravitational wave observatories such as LISA (Laser Interferometry Space Antenna) hinges on the orbital purity of a free-falling reference test mass inside a satellite shield. We present here a torsion pendulum study of the forces that will disturb an orbiting test mass inside a LISA capacitive position sensor. The pendulum, with a measured torque noise floor below 10fNm/Hz from 0.6 to 10 mHz, has allowed placement of an upper limit on sensor force noise contributions, measurement of the sensor electrostatic stiffness at the 5% level, and detection and compensation of stray dc electrostatic biases at the millivolt level.

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  • Received 1 July 2003
  • Publisher error corrected 10 October 2003

DOI:https://doi.org/10.1103/PhysRevLett.91.151101

©2003 American Physical Society

Corrections

10 October 2003

Erratum

Publisher’s Note: Achieving Geodetic Motion for LISA Test Masses: Ground Testing Results [Phys. Rev. Lett. 91, 151101 (2003)]

L. Carbone, A. Cavalleri, R. Dolesi, C. D. Hoyle, M. Hueller, S. Vitale, and W. J. Weber
Phys. Rev. Lett. 91, 179903 (2003)

Authors & Affiliations

L. Carbone1, A. Cavalleri2, R. Dolesi1, C. D. Hoyle1, M. Hueller1, S. Vitale1, and W. J. Weber1

  • 1Dipartimento di Fisica, Università di Trento, and I.N.F.N., Gruppo di Trento, 38050 Povo (TN), Italy
  • 2Centro Fisica degli Stati Aggregati, 38050 Povo (TN), Italy

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Issue

Vol. 91, Iss. 15 — 10 October 2003

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