To improve the sensitivity of the future generation of gravitational wave interferometers in the frequency range around 1 Hz it is necessary to decrease the seismic and Newtonian noise affecting the detector performance. This goal is achieved by installing the experimental apparatus in an appropriate underground site, where the Rayleigh surface wave of the microseismic motion should be attenuated. Here we report the results of an experimental campaign devoted to a long term characterization of one of the potential sites for the construction of a third generation of gravitational wave detector: the former mine of Sos Enattos (Sardinia, Italy). We analyzed the seismic stability within the low-frequency sensitivity band of a third generation gravitational observatory and the correlation between the microseismic band and the weather conditions, in particular focusing on the Tyrrhenian sea status
Microseismic studies of an underground site for a new interferometric gravitational wave detector
ACERNESE, Fausto;BARONE, Fabrizio;GIORDANO, Gerardo;ROMANO, Rocco;
2014-01-01
Abstract
To improve the sensitivity of the future generation of gravitational wave interferometers in the frequency range around 1 Hz it is necessary to decrease the seismic and Newtonian noise affecting the detector performance. This goal is achieved by installing the experimental apparatus in an appropriate underground site, where the Rayleigh surface wave of the microseismic motion should be attenuated. Here we report the results of an experimental campaign devoted to a long term characterization of one of the potential sites for the construction of a third generation of gravitational wave detector: the former mine of Sos Enattos (Sardinia, Italy). We analyzed the seismic stability within the low-frequency sensitivity band of a third generation gravitational observatory and the correlation between the microseismic band and the weather conditions, in particular focusing on the Tyrrhenian sea statusI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
