Properties of the Binary Black Hole Merger GW150914

(LIGO Scientific Collaboration and Virgo Collaboration)

Research output: Contribution to journalArticle

343 Citations (Scopus)

Abstract

On September 14, 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected a gravitational-wave transient (GW150914); we characterize the properties of the source and its parameters. The data around the time of the event were analyzed coherently across the LIGO network using a suite of accurate waveform models that describe gravitational waves from a compact binary system in general relativity. GW150914 was produced by a nearly equal mass binary black hole of masses 36-4+5M and 29-4+4M; for each parameter we report the median value and the range of the 90% credible interval. The dimensionless spin magnitude of the more massive black hole is bound to be <0.7 (at 90% probability). The luminosity distance to the source is 410-180+160 Mpc, corresponding to a redshift 0.09-0.04+0.03 assuming standard cosmology. The source location is constrained to an annulus section of 610 deg2, primarily in the southern hemisphere. The binary merges into a black hole of mass 62-4+4M and spin 0.67-0.07+0.05. This black hole is significantly more massive than any other inferred from electromagnetic observations in the stellar-mass regime.

Original languageEnglish
Article number241102
JournalPhysical Review Letters
Volume116
Issue number24
DOIs
StatePublished - 14 Jun 2016

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LIGO (observatory)
gravitational waves
annuli
Southern Hemisphere
stellar mass
cosmology
relativity
waveforms
luminosity
electromagnetism
intervals

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(LIGO Scientific Collaboration and Virgo Collaboration) (2016). Properties of the Binary Black Hole Merger GW150914. Physical Review Letters, 116(24), [241102]. https://doi.org/10.1103/PhysRevLett.116.241102
(LIGO Scientific Collaboration and Virgo Collaboration). / Properties of the Binary Black Hole Merger GW150914. In: Physical Review Letters. 2016 ; Vol. 116, No. 24.
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(LIGO Scientific Collaboration and Virgo Collaboration) 2016, 'Properties of the Binary Black Hole Merger GW150914', Physical Review Letters, vol. 116, no. 24, 241102. https://doi.org/10.1103/PhysRevLett.116.241102

Properties of the Binary Black Hole Merger GW150914. / (LIGO Scientific Collaboration and Virgo Collaboration).

In: Physical Review Letters, Vol. 116, No. 24, 241102, 14.06.2016.

Research output: Contribution to journalArticle

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(LIGO Scientific Collaboration and Virgo Collaboration). Properties of the Binary Black Hole Merger GW150914. Physical Review Letters. 2016 Jun 14;116(24). 241102. https://doi.org/10.1103/PhysRevLett.116.241102