1.
Phys Rev Lett
; 91(11): 111101, 2003 Sep 12.
Article
in English
| MEDLINE
| ID: mdl-14525411
ABSTRACT
Resonant gravitational wave detectors with an observation bandwidth of tens of hertz are a reality: the antenna Explorer, operated at CERN by the ROG Collaboration, has been upgraded with a new readout. In this new configuration, it exhibits an unprecedented useful bandwidth: in over 55 Hz about its center operating frequency of 919 Hz the spectral sensitivity is better than 10(-20) Hz(-1/2). We describe the detector and its sensitivity and discuss the foreseeable upgrades to even larger bandwidths.
2.
Phys Rev Lett
; 84(1): 14-7, 2000 Jan 03.
Article
in English
| MEDLINE
| ID: mdl-11015823
ABSTRACT
The passage of cosmic rays has been observed to excite mechanical vibrations in the resonant gravitational wave detector NAUTILUS operating at temperature of 100 mK. A very significant correlation (more than 10 standard deviations) is found.