GW3 - Space and Third Generation GW Detectors |
|
Speaker |
Mandic, Vuk |
|
Talk Title |
Underground Gravity-Gradient Noise and Gravitational-Wave Detectors |
|
Abstract |
The surface-based gravitational-wave detectors, such as LIGO and Virgo, are limited to operate above ~10 Hz. The seismic motion and the fluctuations in the local gravitational field (gravity gradient noise) are among the dominant noise sources at frequencies below 10 Hz. While it is expected that both of these noise sources would be suppressed underground, careful studies are needed to quantify such suppression. After briefly reviewing the scientific motivation for probing the 0.1-10 Hz band, I will describe our ongoing efforts at the Homestake mine, USA to characterize the amplitudes and correlation lengths of the seismic and gravity-gradient noise as a function of depth and frequency. I will summarize our recent results and their implications for a future underground gravitational-wave detector. |
|
Talk view |
|
|
|
|