Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/105232
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Type: Journal article
Title: Upper limits on the stochastic gravitational-wave background from Advanced LIGO's first observing run
Author: Abbott, B.
Abbott, R.
Abbott, T.
Abernathy, M.
Acernese, F.
Ackley, K.
Adams, C.
Adams, T.
Addesso, P.
Adhikari, R.
Adya, V.
Affeldt, C.
Agathos, M.
Agatsuma, K.
Aggarwal, N.
Aguiar, O.
Aiello, L.
Ain, A.
Ajith, P.
Allen, B.
et al.
Citation: Physical Review Letters, 2017; 118(12):121101-1-121101-12
Publisher: American Physical Society
Issue Date: 2017
ISSN: 0031-9007
1079-7114
Statement of
Responsibility: 
B. P. Abbott … R. Abbott … Won Kim … Jesper Munch … David J. Ottaway … Peter J. Veitch … et al. (LIGO Scientific Collaboration and Virgo Collaboration)
Abstract: A wide variety of astrophysical and cosmological sources are expected to contribute to a stochastic gravitational-wave background. Following the observations of GW150914 and GW151226, the rate and mass of coalescing binary black holes appear to be greater than many previous expectations. As a result, the stochastic background from unresolved compact binary coalescences is expected to be particularly loud. We perform a search for the isotropic stochastic gravitational-wave background using data from Advanced Laser Interferometer Gravitational Wave Observatory's (aLIGO) first observing run. The data display no evidence of a stochastic gravitational-wave signal. We constrain the dimensionless energy density of gravitational waves to be Ω_{0}<1.7×10^{-7} with 95% confidence, assuming a flat energy density spectrum in the most sensitive part of the LIGO band (20-86 Hz). This is a factor of ∼33 times more sensitive than previous measurements. We also constrain arbitrary power-law spectra. Finally, we investigate the implications of this search for the background of binary black holes using an astrophysical model for the background.
Keywords: LIGO Scientific Collaboration and Virgo Collaboration
Rights: © 2017 American Physical Society
RMID: 0030067301
DOI: 10.1103/PhysRevLett.118.121101
Appears in Collections:Physics publications

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