Details
| Original language | English |
|---|---|
| Article number | 131102 |
| Journal | Physical review letters |
| Volume | 116 |
| Issue number | 13 |
| Publication status | Published - 31 Mar 2016 |
Abstract
The 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)=1.1-0.9+2.7×10-9 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.
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In: Physical review letters, Vol. 116, No. 13, 131102, 31.03.2016.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - GW150914
T2 - Implications for the stochastic gravitational-wave background from binary black holes
AU - The LIGO Scientific Collaboration
AU - The Virgo Collaboration
AU - Abbott, B. P.
AU - Abbott, R.
AU - Abbott, T. D.
AU - Abernathy, M. R.
AU - Acernese, F.
AU - Ackley, K.
AU - Adams, C.
AU - Adams, T.
AU - Addesso, P.
AU - Adhikari, R. X.
AU - Adya, V. B.
AU - Affeldt, C.
AU - Agathos, M.
AU - Agatsuma, K.
AU - Aggarwal, N.
AU - Aguiar, O. D.
AU - Aiello, L.
AU - Ain, A.
AU - Ajith, P.
AU - Allen, B.
AU - Bose, S.
AU - Brown, D. D.
AU - Chen, Y.
AU - Danilishin, S. L.
AU - Danzmann, Karsten
AU - Fricke, T. T.
AU - Hanke, M. M.
AU - Hennig, J.
AU - Heurs, Michele
AU - Kawazoe, Fumiko
AU - Lee, H. K.
AU - Lück, Harald
AU - Luo, J.
AU - Nguyen, T. T.
AU - Schmidt, J.
AU - Schmidt, P.
AU - Shaltev, M.
AU - Steinmeyer, Daniel
AU - Sun, L.
AU - Vahlbruch, Henning Fedor Cornelius
AU - Wang, M.
AU - Wang, X.
AU - Wang, Y.
AU - Wei, L. W.
AU - Willke, Benno
AU - Wittel, Holger
AU - Zhang, L.
AU - Zhang, Y.
AU - Zhou, M.
AU - Bisht, A.
AU - Denker, Timo
AU - Kaufer, Stefan
AU - Krüger, Christian
AU - Lough, J. D.
AU - Sawadsky, A.
AU - Schütte, Dirk
PY - 2016/3/31
Y1 - 2016/3/31
N2 - The 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)=1.1-0.9+2.7×10-9 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.
AB - The 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)=1.1-0.9+2.7×10-9 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.
UR - http://www.scopus.com/inward/record.url?scp=84962867362&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.116.131102
DO - 10.1103/PhysRevLett.116.131102
M3 - Article
AN - SCOPUS:84962867362
VL - 116
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 13
M1 - 131102
ER -