Properties of the Binary Black Hole Merger GW150914

(LIGO Scientific Collaboration and Virgo Collaboration)

Research output: Contribution to journalArticle

398 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
Publication statusPublished - Jun 14 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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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