Article (Scientific journals)
Properties of the Binary Black Hole Merger GW150914
Abbott, B. P.; Collette, Christophe; Fays, Maxime
2016In Physical Review Letters, 116 (24)
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Abstract :
[en] 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.
Disciplines :
Mechanical engineering
Author, co-author :
Abbott, B. P.
Collette, Christophe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Active aerospace struct. and adv. mecha. systems
Fays, Maxime  ;  Cardiff University
Language :
English
Title :
Properties of the Binary Black Hole Merger GW150914
Publication date :
2016
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
116
Issue :
24
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Language of publication: en DOI: 10.1103/PhysRevLett.116.241102
Available on ORBi :
since 19 October 2020

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