On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from 35 to 250 Hz with a peak gravitational-wave strain of 1.0 × 10-21. It matches the waveform predicted by general relativity for the inspiral and merger of a pair of black holes and the ringdown of the resulting single black hole. The signal was observed with a matched-filter signal-to-noise ratio of 24 and a false alarm rate estimated to be less than 1 event per 203 000 years, equivalent to a significance greater than 5.1 σ. The source lies at a luminosity distance of 410+160 −180 Mpc corresponding to a redshift z = 0.09+0.03 −0.04. In the source frame, the initial black hole masses are 36+5 −4 M☉ and 29+4 −4 M☉, and the final black hole mass is 62+4 −4 M☉, with 3.0+0.5 −0.5  M☉c2 radiated in gravitational waves. All uncertainties define 90% credible intervals. These observations demonstrate the existence of binary stellar-mass black hole systems. This is the first direct detection of gravitational waves and the first observation of a binary black hole merger.

Observation of gravitational waves from a binary black hole merger / Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M.R., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R.X., Adya, V.B., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:6(2016), pp. 061102.1-061102.16. [10.1103/PhysRevLett.116.061102]

Observation of gravitational waves from a binary black hole merger

Ciani, G.;Di Giovanni, M.;Drago, M.;Leonardi, Matteo;Perreca, Antonio;Prodi, Giovanni Andrea;Tiwari, S.;Tringali, Maria Concetta;Vardaro, M.;Vinciguerra, S.;
2016-01-01

Abstract

On September 14, 2015 at 09:50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency from 35 to 250 Hz with a peak gravitational-wave strain of 1.0 × 10-21. It matches the waveform predicted by general relativity for the inspiral and merger of a pair of black holes and the ringdown of the resulting single black hole. The signal was observed with a matched-filter signal-to-noise ratio of 24 and a false alarm rate estimated to be less than 1 event per 203 000 years, equivalent to a significance greater than 5.1 σ. The source lies at a luminosity distance of 410+160 −180 Mpc corresponding to a redshift z = 0.09+0.03 −0.04. In the source frame, the initial black hole masses are 36+5 −4 M☉ and 29+4 −4 M☉, and the final black hole mass is 62+4 −4 M☉, with 3.0+0.5 −0.5  M☉c2 radiated in gravitational waves. All uncertainties define 90% credible intervals. These observations demonstrate the existence of binary stellar-mass black hole systems. This is the first direct detection of gravitational waves and the first observation of a binary black hole merger.
2016
6
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.;...espandi
Observation of gravitational waves from a binary black hole merger / Abbott, B.P., Abbott, R., Abbott, T.D., Abernathy, M.R., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R.X., Adya, V.B., Affeldt, C., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Allen, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:6(2016), pp. 061102.1-061102.16. [10.1103/PhysRevLett.116.061102]
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.116.061102.pdf

accesso aperto

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Creative commons
Dimensione 906.39 kB
Formato Adobe PDF
906.39 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/163171
Citazioni
  • ???jsp.display-item.citation.pmc??? 260
  • Scopus 7706
  • ???jsp.display-item.citation.isi??? 8596
  • OpenAlex 14175
social impact