Impact of infrasound atmospheric noise on gravity detectors used for astrophysical and geophysical applications

Abstract

Density changes in the atmosphere produce a fluctuating gravity field that affect gravity strainmeters or gravity gradiometers used for the detection of gravitational-waves and for geophysical applications. This work addresses the impact of the atmospheric local gravity noise on such detectors, extending previous analyses. In particular we present the effect introduced by the building housing the detectors, and we analyze local gravity-noise suppression by constructing the detector underground. We present also new sound spectra and correlations measurements. The results obtained are important for the design of future gravitational-wave detectors and gravity gradiometers used to detect prompt gravity perturbations from earthquakes.

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• Gauge invariant formulation of gravitational waves in metric $f(R)$ gravity
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• Machine learning for gravitational-wave detection: surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo
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• Seismic array measurements at Virgo's West End Building for the configuration of a Newtonian-noise cancellation system
• The KAGRA underground environment and lessons for the Einstein Telescope
• Observation of a potential future sensitivity limitation from ground motion at LIGO Hanford
• Seismic Cross-coupling Noise in Torsion Pendulums
• Technologies for the ELGAR large scale atom interferometer array
• tvf-EMD based time series analysis of ${}^7$Be of the CTBTO-IMS network
• A Low-Frequency Torsion Pendulum with Interferometric Readout
• Estimation of Newtonian noise from KAGRA cooling system
• Mid-Frequency Gravitational Wave Detection and Sources
• Response of the underground environment of the KAGRA observatory against the air-pressure disturbance from the Tonga volcano eruption on January 15th, 2022
• Seismic noise measures for underground gravitational wave detectors
• Atmospheric Newtonian noise modeling for third-generation gravitational wave detectors
• The role of longitudinal polarizations in Horndeski and macroscopic gravity: Introducing gravitational plasmas