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

Original version

Abadie, J.; Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abernathy, M. et al.: Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz. In: Physical Review D - Particles, Fields, Gravitation and Cosmology 85 (2012), Nr. 12, 122001. DOI: https://doi.org/10.1103/PhysRevD.85.122001

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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/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 Society
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Publication type:	Article
Publishing status:	publishedVersion
Publication date:	2012
Keywords german:	Gravitationswelle
Keywords english:	Gravitational waves
DDC:	530 \| Physik