Virgo: Very wide band interferometric gravitational wave antenna

The sensitivity required to detect the small signals of gravitational waves in a wide spectrum is achievable in interferometers of long enough arms. Six interferometric gravitational wave antennas are planned all over the world. Virgo, one of such experiments, will be built in Italy by a French-Italian collaboration. The sensitivity goal of the Virgo antenna has been chosen at the level where one expects to observe at least few events per year. Virgo is designed for broad band detection (from 10Hz to 3 kHz), in order to get the best chance of detecting different kinds of sources, from pulsars to supernovae, alone or in coincidence with other detectors.