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

Understand

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.