TITLE

Bars in action

AUTHOR(S)
Coccia, Eugenio
PUB. DATE
June 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 523 Issue 1, p32
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the status of the five resonant-mass detectors of gravitational waves operating today in Australia, Italy and USA. These bar detectors are in continuous observational mode with burst sensitivity h=4×10[sup -19], or, in spectral units, 2×10[sup -22] Hz[sup -1/2] over bandwidths of about 1 Hz, with a duty cycle mainly limited by cryogenic operations. The strongest potential sources of GW bursts in our Galaxy and in the local group are today monitored by such instruments. With the formation of the IGEC (International Gravitational Event Collaboration), the activity on bar detectors passed a phase transition: from the occasional exchange of data between two groups to the systematic exchange of data between all the groups, following an agreed protocol. In addition to the search for impulsive events, the data collected are being used to detect periodic waves over long time periods, to give new upper limits for the stochastic background of cosmological origin, and to study possible correlations with gamma ray bursts. © 2000 American Institute of Physics.
ACCESSION #
6028831

 

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