GW170608: Observation of a 19 Solar-mass Binary Black Hole Coalescence
- 주제(키워드) binaries: general , gravitational waves , stars: black holes
- 주제(기타) Astronomy & Astrophysics
- 등재 SCIE, SCOPUS
- 발행기관 IOP PUBLISHING LTD
- 발행년도 2017
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000162162
- 본문언어 영어
- Published As http://dx.doi.org/10.3847/2041-8213/aa9f0c
초록/요약
On 2017 June 8 at 02:01:16.49 UTC, a gravitational-wave (GW) signal from the merger of two stellar-mass black holes was observed by the two Advanced Laser Interferometer Gravitational-Wave Observatory detectors with a network signal-to-noise ratio of. 13. This system is the lightest black hole binary so far observed, with component masses of 12(2)(+7) M-circle dot and 7(2)(+2) M-circle dot (90% credible intervals). These lie in the range of measured black hole masses in low-mass X-ray binaries, thus allowing us to compare black holes detected through GWs with electromagnetic observations. The source's luminosity distance is 340(-140)(+140) Mpc, corresponding to redshift 0.07(-0.03)(+0.03). We verify that the signal waveform is consistent with the predictions of general relativity.
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