AURIGA

Home page of the Experiment: http://www.lnl.infn.it/%7Eauriga/welcome.html

AURIGA represents with the similar experiment Nautilus the most sensitive resonant bar detector on the air, thanks to the possibility to cool down the mechanical sensor to ultracryogenic temperature by a He3-He4 dilution refrigerator. Auriga collaborates with the other 3 cryogenic detector working in the world (Allegro, Explorer and Nautilus) within the IGEC (International Gravitational Event Collaboration) with the aim to study the coincidences between the detectors. The present sensitivity permit to detect very strong sources within our Galaxies, as NS-NS, BH-BH coalescences, with a false alarm rate below 10 –4 /year when at least 3 detectors are on the air. The Auriga group is engaged in an aggressive R&D to bring the performances of the transduction chain to an overall energy sensitivity of the detector below 100 quanta of vibration of teh resonant bar. This will enable to reach out to the Local Group of Galaxies.