GW150914: Implications for the stochastic gravitational-wave background from binary black holes

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dc.contributor.authorAbbott, B. P.
dc.contributor.authorDavies, G. S.
dc.contributor.authorLIGO Scientific Collaboration and Virgo Collaboration
dc.date.accessioned2017-04-19T09:30:06Z
dc.date.available2017-04-19T09:30:06Z
dc.date.issued2016-03-31
dc.description.abstractThe LIGO detection of the gravitational wave transient GW150914, from the inspiral and merger of two black holes with masses ≳30M⊙, suggests a population of binary black holes with relatively high mass. This observation implies that the stochastic gravitational-wave background from binary black holes, created from the incoherent superposition of all the merging binaries in the Universe, could be higher than previously expected. Using the properties of GW150914, we estimate the energy density of such a background from binary black holes. In the most sensitive part of the Advanced LIGO and Advanced Virgo band for stochastic backgrounds (near 25 Hz), we predict ΩGW(f=25  Hz)=1.1(+2.7/−0.9)×10^−9 with 90% confidence. This prediction is robustly demonstrated for a variety of formation scenarios with different parameters. The differences between models are small compared to the statistical uncertainty arising from the currently poorly constrained local coalescence rate. We conclude that this background is potentially measurable by the Advanced LIGO and Advanced Virgo detectors operating at their projected final sensitivity.en_UK
dc.identifier.citationAbbott BP, et al., (LIGO Scientific Collaboration and Virgo Collaboration). GW150914: implications for the stochastic gravitational-wave background from binary black holes. Physical Review Letters, Volume 116, Issue 13, April 2016, Article number 131102en_UK
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11780
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.116.131102
dc.publisherAmerican Physical Societyen_UK
dc.rights© 2016 American Physical Society. This is the publisher Version of Record Manuscript. Please refer to any applicable publisher terms of use.
dc.titleGW150914: Implications for the stochastic gravitational-wave background from binary black holesen_UK
dc.typeArticleen_UK

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