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Published June 4, 2012 | Published + Submitted
Journal Article Open

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

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 Ω_(GW)(f)=Ω_3(f/900  Hz)^3, of Ω_3<0.32, assuming a value of the Hubble parameter of h_(100)=0.71. These new limits are a factor of seven better than the previous best in this frequency band.

Additional Information

© 2012 American Physical Society. Received 29 January 2012; published 4 June 2012. The authors gratefully acknowledge the support of the United States National Science Foundation for the construction and operation of the LIGO Laboratory, the Science and Technology Facilities 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, and the Italian Istituto Nazionale di Fisica Nucleare and the French Centre National de la Recherche Scientifique for the construction and operation of the Virgo detector. The authors also gratefully acknowledge the support of the research by these agencies and by the Australian Research Council, the International Science Linkages program of the Commonwealth of Australia, the Council of Scientific and Industrial Research of India, the Istituto Nazionale di Fisica Nucleare of Italy, the Spanish Ministerio de Educación y Ciencia, the Conselleria d'Economia Hisenda i Innovació of the Govern de les Illes Balears, the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, the Polish Ministry of Science and Higher Education, the FOCUS Programme of Foundation for Polish Science, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, The National Aeronautics and Space Administration, the Carnegie Trust, the Leverhulme Trust, the David and Lucile Packard Foundation, the Research Corporation, and the Alfred P. Sloan Foundation. This is LIGO document LIGO-P1000128.

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Published - Abadie2012p18649Phys_Rev_D.pdf

Submitted - 1112.5004v4.pdf

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Created:
August 19, 2023
Modified:
October 17, 2023