GW170608: observation of a 19 solar-mass binary black hole coalescence

Research output: Contribution to journalArticlepeer-review

Authors

  • LIGO Scientific Collaboration
  • Virgo Collaboration

External organisations

  • California Institute of Technology
  • Louisiana State University
  • University of Salerno
  • Complesso Universitario di Monte S.Angelo
  • University of Florida
  • Monash University
  • LIGO Livingston Observatory
  • IN2P3
  • University of Sannio at Benevento
  • Albert-Einstein-Institut, Max-Planck-Institut für, Gravitationsphysik
  • University of Mississippi
  • University of Illinois
  • University of Cambridge
  • Institution Nikhef National Institute for Subatomic Physics
  • Massachusetts Institute of Technology
  • Instituto Nacional de Pesquisas Espaciais
  • Facebook
  • Laboratori Nazionali del Gran Sasso
  • Inter-University Centre for Astronomy and Astrophysics India
  • Tata Institute of Fundamental Research
  • University of Wisconsin-Milwaukee
  • Università di Pisa
  • Sezione INFN di Pisa
  • Australian National University
  • Domaine Scientifique de la Doua
  • University of the West of Scotland

Abstract

On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave (GW) signal from the merger of two stellar-mass blackholes was observed by the two Advanced Laser Interferometer Gravitational-Wave Observatory detectors with anetwork signal-to-noise ratio of 13. This system is the lightest black hole binary so far observed, with componentmasses of 12 +7 -2 M 7 +2 -2 (90% credible intervals). These lie in the range of measured black hole masses inlow-mass X-ray binaries, thus allowing us to compare black holes detected through GWs with electromagneticobservations. The source's luminosity distance is 340 +140 -140 corresponding to redshift -0.07 +0.030 03. We verify thatthe signal waveform is consistent with the predictions of general relativity.

Details

Original languageEnglish
Article numberL35
JournalAstrophysical Journal Letters
Volume851
Issue number2
Publication statusPublished - 18 Dec 2017

Keywords

  • binaries: general, gravitational waves, stars: black holes