Figures of merit for a stochastic gravitational-wave background measurement by LISA: Implications of LISA Pathfinder noise correlations - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review D Année : 2022

Figures of merit for a stochastic gravitational-wave background measurement by LISA: Implications of LISA Pathfinder noise correlations

Résumé

An important goal of the Laser Interferometer Space Antenna (LISA) is to observe a stochastic gravitational-wave background (SGWB). A study of possible correlated noise in LISA is relevant to establish limits for this future measurement. To test noise investigation methods under somewhat realistic conditions, we use the data of LISA Pathfinder. We calculate the coherence between the LISA Pathfinder differential acceleration of the two test masses with magnetic fields, temperature, and micronewton cold gas thruster activity in the spacecraft. We apply our observed correlations to LISA, and estimate how the presence of such correlated noise would affect its search for a SGWB. In the context of a figure of merit, we estimate the effect of noise on the LISA SGWB search.

Dates et versions

hal-03650706 , version 1 (25-04-2022)

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Guillaume Boileau, Nelson Christensen, Renate Meyer. Figures of merit for a stochastic gravitational-wave background measurement by LISA: Implications of LISA Pathfinder noise correlations. Physical Review D, 2022, 106 (6), pp.063025. ⟨10.1103/PhysRevD.106.063025⟩. ⟨hal-03650706⟩
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