Jan Harms
Abstract:
The so-called Newtonian noise produced by terrestrial gravity fluctuations is predicted to limit the low-frequency sensitivity of advanced and future-generation, ground-based GW detectors. Mitigation techniques have been proposed, but also site selection will play an important role for future detectors, not only to choose a site with low ambient Newtonian noise, but also with respect to noise mitigation. In this presentation, I will summarize our current understanding of Newtonian noise, the challenges of Newtonian-noise mitigation, and what the important considerations are for site selection concerning Newtonian noise.