논문
GW170608: Observation of a 19 Solar-mass Binary Black Hole Coalescence
- 저자B.P. Abbott et al. (J. J. Oh, S. H. Oh, E. J. Son, W. S. Kim)
- 학술지Astrophysical Journal Letters 851
- 등재유형
- 게재일자(2017)
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 ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn1.gif] {${12}_{-2}^{+7}\,{M}_{\odot }$} and ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn2.gif] {${7}_{-2}^{+2}\,{M}_{\odot }$} (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 ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn3.gif] {${340}_{-140}^{+140}\,\mathrm{Mpc}$} , corresponding to redshift ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn4.gif] {${0.07}_{-0.03}^{+0.03}$} . We verify that the signal waveform is consistent with the predictions of general relativity.
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 ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn1.gif] {${12}_{-2}^{+7}\,{M}_{\odot }$} and ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn2.gif] {${7}_{-2}^{+2}\,{M}_{\odot }$} (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 ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn3.gif] {${340}_{-140}^{+140}\,\mathrm{Mpc}$} , corresponding to redshift ##IMG## [http://ej.iop.org/images/2041-8205/851/2/L35/apjlaa9f0cieqn4.gif] {${0.07}_{-0.03}^{+0.03}$} . We verify that the signal waveform is consistent with the predictions of general relativity.
