Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz
- Abadie, J.
- Affeldt, Christoph
- Allen, Bruce
- Aufmuth, Peter
- Aulbert, C.
- Ballardin, G.
- Bauchrowitz, J.
- Bertolini, A.
- Bock, O.
- Bogan, C.
- Born, Michael
- Breyer, J.
- Brinkmann, M.
- Britzger, M.
- Dahl, K.
- Danzmann, Karsten
- Di Palma, Irene
- Eberle, Tobias
- Fehrmann, H.
- Frede, M.
- Friedrich, Daniel
- Goetz, E.
- Goßler, S.
- Graef, C.
- Grote, Hartmut
- Hewitson, M.
- Kaufer, Henning
- Kawazoe, F.
- Khalaidovski, Alexander
- Kim, H.
- Kranz, O.
- Kringel, V.
- Kühn, G.
- Kwee, P.
- Lastzka, N.
- Leong, J.R.
- Lück, Harald
- Machenschalk, Bernd
- Mazzolo, G.
- Mehmet, Moritz
- Meier, Tobias
- Mossavi, K.
- Müller-Ebhard, H.
- Pickenpack, M.
- Pletsch, H.J.
- Pöld, J.
- Prijatelj, M.
- Prix, R
- Puncken, O.
- Röver, C.
- Rüdiger, A.
- Salemi, F.
- Schilling, R.
- Schnabel, Roman
- Schreiber, E.
- Schulz, B.
- Shaltev, M.
- Steinlechner, J.
- Steinlechner, S.
- Tarabrin, S.P.
- Taylor, J.R.
- Thüring, A.
- Vahlbruch, H.
- Veltkamp, C.
- Wanner, A.
- Weinert, M.
- Wessels, P.
- Westphal, Tobias
- Wette, K.
- Willke, Benno
- Winkelmann, L.
- Winkler, W.
- Wittel, H.
- Yamamoto, K.
- et al.
- LIGO Scientific Collaboration
- Virgo Collaboration
DOIAbstract
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/900 Hz)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 The American Physical Societ
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