Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz

LIGO Scientific Collaboration and Virgo Collaboration, D. J. Hosken

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48 Citations (Scopus)

Abstract

A stochastic background of gravitational waves is expected to arise from a superposition of many incoherent sources of gravitational waves, of either cosmological or astrophysical origin. This background is a target for the current generation of ground-based detectors. In this article we present the first joint search for a stochastic background using data from the LIGO and Virgo interferometers. In a frequency band of 600-1000 Hz, we obtained a 95% upper limit on the amplitude of ΩGW(f) ≥Ω3(f/900Hz)3, of Ω3<0.32, assuming a value of the Hubble parameter of h100≥0.71. These new limits are a factor of seven better than the previous best in this frequency band.

Original languageEnglish
Article number122001
Number of pages15
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number12
DOIs
Publication statusPublished - 15 Jun 2012
Externally publishedYes

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