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arXiv · astro-ph/0608606

Searching for a Stochastic Background of Gravitational Waves with LIGO

LIGO Scientific Collaboration
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Abstract

The Laser Interferometer Gravitational-wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new limit is $Ω_{\rm GW} < 6.5 \times 10^{-5}$. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.

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LIGO Scientific Collaboration. 2006-09-21. Searching for a Stochastic Background of Gravitational Waves with LIGO. https://doi.org/10.1086/511329

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