Status of LIGO detectors and results from recent astrophysical searches

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The Laser Interferometer Gravitational-wave Observatory (LIGO) has built three multi-km scale interferometers, designed to search for gravitational waves. The sensitivity of the LIGO interferometers has been rapidly increasing over the recent years, allowing a number of searches for sources of gravitational waves to be conducted. We discuss the current status of the LIGO interferometers and the results from the recent search for stochastic background of gravitational waves. For the frequency independent gravitational wave spectrum, we report a new Bayesian 90% UL on the spectral amplitude of 8.4 × 10−4 in the frequency range 69-156 Hz.

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2005
Externally publishedYes
Event2005 International Europhysics Conference on High Energy Physics, HEP 2005 - Lisboa, Portugal
Duration: Jul 21 2005Jul 27 2005

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support of the United States National Science Foundation for the construction and operation of the LIGO Laboratory and the Particle Physics and Astronomy Research Council of the United Kingdom, the Max-Planck-Society and the State of Niedersachsen/Germany for support of the construction and operation of the GEO600 detector. The authors also gratefully acknowledge the support of the research by these agencies and by the Australian Research Council, the Natural Sciences and Engineering Research Council of Canada, the Council of Scientific and Industrial Research of India, the Department of Science and Technology of India, the Spanish Ministerio de Educacion y Ciencia, the John Simon Guggenheim Foundation, the Leverhulme Trust, the David and Lucile Packard Foundation, the Research Corporation, and the Alfred P. Sloan Foundation.

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