Document Type
Article
Publication Date
6-4-2012
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.
Publication Source (Journal or Book title)
Physical Review D - Particles, Fields, Gravitation and Cosmology
Recommended Citation
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., Araya, M., Aston, S., Astone, P., Atkinson, D., Aufmuth, P., Aulbert, C., Aylott, B., Babak, S., Baker, P., Ballardin, G., Ballmer, S., Barayoga, J., & Barker, D. (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) https://doi.org/10.1103/PhysRevD.85.122001