Detection of gravitational waves from a coalescing binary system - effect of thermal noise on the efficiency of the detector

Dhurandhar, S. V. ; Krolak, A. ; Lobo, J. A. (1989) Detection of gravitational waves from a coalescing binary system - effect of thermal noise on the efficiency of the detector Monthly Notices of the Royal Astronomical Society, 237 . pp. 333-340. ISSN 0035-8711

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Official URL: http://onlinelibrary.wiley.com/journal/10.1111/%28...

Abstract

The effects of thermal noise on the performance of a long-baseline interferometric gravitational wave detector in the 10-50 Hz frequency range are evaluated. It is found that by reducing the seismic cut-off frequency by a factor of 2, an improvement of about sq rt 2 in the SNR can be achieved for the detection of a signal coming from a coalescing binary. It is noted that further improvements in seismic isolation do not yield significantly better performance.

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