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Commissioning of the LIGO detectors

Daniel Sigg

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The goal of the laser interferometer gravitational-wave observatory (LIGO) project is to detect and study gravitational waves from astrophysical sources. Currently, three interferometers with arm lengths of several kilometres and a design strain sensitivity of order 2 × 10−23 Hz−1/2 are being commissioned at two independent sites in Hanford (WA) and Livingston (LA). This paper describes the current work towards achieving LIGO's final sensitivity.


PACS

04.80.Nn Gravitational wave detectors and experiments

07.60.Ly Interferometers

95.55.Ym Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques

MSC

83C35 Gravitational waves

Subjects

Instrumentation and measurement

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 7 (7 April 2002)

Received 2 October 2001, in final form 14 November 2001

Published 11 March 2002



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