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 Omega(GW)(f) = Omega(3)(f/900 Hz)(3), of Omega(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.

Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600–1000 Hz / Abadie, J., Abbott, B., Abbott, R., Abbott, T., Abernathy, M., Accadia, T., Acernese, F., Adams, C., Adhikari, R., Affeldt, C., Agathos, M., Agatsuma, K., Ajith, P., Allen, B., Amador Ceron, E., Amariutei, D., Anderson, S., Anderson, W., Arai, K., Arain, M., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:(2012), pp. 122001-1-122001-14. [10.1103/PhysRevD.85.122001]

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

CALLONI, ENRICO;DE ROSA, ROSARIO;GARUFI, FABIO;MILANO, LEOPOLDO;MOSCA, simona;PARISI, MARIA;I. Pinto;
2012

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 Omega(GW)(f) = Omega(3)(f/900 Hz)(3), of Omega(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.
2012
Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600–1000 Hz / Abadie, J., Abbott, B., Abbott, R., Abbott, T., Abernathy, M., Accadia, T., Acernese, F., Adams, C., Adhikari, R., Affeldt, C., Agathos, M., Agatsuma, K., Ajith, P., Allen, B., Amador Ceron, E., Amariutei, D., Anderson, S., Anderson, W., Arai, K., Arain, M., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:(2012), pp. 122001-1-122001-14. [10.1103/PhysRevD.85.122001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/498435
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