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Charge Induced Acceleration Noise in the LISA Gravitational Reference Sensor

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arxiv 1909.12608 v1 pith:3WIPWO3H submitted 2019-09-27 physics.ins-det

Timothy J Sumner , Guido Mueller , John W Conklin , Peter J Wass , Daniel Hollington This is my paper · ORCID
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keywords accelerationchargelisanoisecontributionsgravitationalinducednumber
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The presence of free charge on isolated proof-masses, such as those within space-borne gravitational reference sensors, causes a number of spurious forces which will give rise to associated acceleration noise. A complete discusssion of each charge induced force and its linear acceleration noise is presented. The resulting charge acceleration noise contributions to the LISA mission are evaluated using the LISA Pathfinder performance and design. It is shown that one term is largely dominant but that a full budget should be maintained for LISA and future missions due to the large number of possible contributions and their dependence on different sensor parameters.

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  1. Acceleration noise due to Space Magnetic Field for Heliocentric Gravitational Wave Detector

    physics.space-ph 2025-02 conditional novelty 4.0 of 10

    Using 25 years of OMNI interplanetary magnetic field data, the authors estimate LISA's magnetic acceleration noise at 1 mHz is about 1e-17 m/s^2/sqrt(Hz), well below its requirement.

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