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. © 2012 American Physical Society.

Abadie, J., Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M., Accadia, T., et al. (2012). Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(12), 1-14 [10.1103/PhysRevD.85.122001].

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

Cuoco E.;
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 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. © 2012 American Physical Society.
2012
Abadie, J., Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M., Accadia, T., et al. (2012). Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(12), 1-14 [10.1103/PhysRevD.85.122001].
Abadie, J.; Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M.; Accadia, T.; Acernese, F.; Adams, C.; Adhikari, R.; Affeldt, C.; Agathos, M.; Aga...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/998214
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