Observation of Gravitational Waves from a Binary Black Hole Merger.
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Evans,R Everett, M Factourovich, V Fafone, H Fair,S Fairhurst,X Fan, Q Fang,S Farinon, B Farr, W M Farr,M Favata,M Fays, H Fehrmann, M M Fejer, D Feldbaum,I Ferrante, E C Ferreira,F Ferrini, F Fidecaro, L S Finn, I Fiori, D Fiorucci, R P Fisher, R Flaminio,M Fletcher,H Fong, J-D Fournier,S Franco, S Frasca, F Frasconi, M Frede, Z Frei, A Freise, R Frey, V Frey, T T Fricke, P Fritschel, V V Frolov,P Fulda, M Fyffe, H A G Gabbard, J R Gair,L Gammaitoni, S G Gaonkar, F Garufi,A Gatto,G Gaur,N Gehrels, G Gemme,B Gendre,E Genin, A Gennai,J George,L Gergely, V Germain,Abhirup Ghosh,Archisman Ghosh,S Ghosh, J A Giaime, K D Giardina, A Giazotto,K Gill, A Glaefke,J R Gleason, E Goetz,R Goetz, L Gondan, G González, J M Gonzalez Castro, A Gopakumar,N A Gordon, M L Gorodetsky, S E Gossan,M Gosselin, R Gouaty, C Graef, P B Graff, M Granata,A Grant,S Gras, C Gray,G Greco, A C Green, R J S Greenhalgh,P Groot,H Grote,S Grunewald, G M Guidi,X Guo,A Gupta,M K Gupta, K E Gushwa, E K Gustafson, R 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Kells,R Kennedy, D G Keppel, J S Key, A Khalaidovski, F Y Khalili,I Khan, S Khan,Z Khan,E A Khazanov, N Kijbunchoo, C Kim,J Kim,K Kim,Nam-Gyu Kim,Namjun Kim,Y-M Kim, E J King, P J King, D L Kinzel,J S Kissel, L Kleybolte,S Klimenko, S M Koehlenbeck, K Kokeyama,S Koley, V Kondrashov, A Kontos, S Koranda,M Korobko, W Z Korth, I Kowalska, D B Kozak, V Kringel, B Krishnan,A Królak,C Krueger, G Kuehn,P Kumar,R Kumar,L Kuo, A Kutynia, P Kwee,B D Lackey, M Landry,J Lange, B Lantz, P D Lasky, A Lazzarini,C Lazzaro, P Leaci, S Leavey, E O Lebigot,C H Lee,H K Lee, H M Lee, K Lee,A Lenon, M Leonardi, J R Leong, N Leroy, N Letendre,Y Levin, B M Levine, T G F Li, A Libson, T B Littenberg, N A Lockerbie,J Logue, A L Lombardi,L T London, J E Lord,M Lorenzini, V Loriette, M Lormand, G Losurdo, J D Lough,C O Lousto, G Lovelace,H Lück, A P Lundgren,J Luo,R Lynch,Y Ma,T MacDonald, B Machenschalk, M MacInnis, D M Macleod, F Magaña-Sandoval, R M Magee, M Mageswaran, E Majorana, I Maksimovic, V Malvezzi, N 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PHYSICAL REVIEW LETTERS（2016）
引用 8669|浏览126
摘要
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 x 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 sigma. The source lies at a luminosity distance of 410(-180)(+160) Mpc corresponding to a redshift z = 0.09(-0.01)(+0.03). In the source frame, the initial black hole masses are 36(-4)(+5)M(circle dot) and 29(-4)(+4)M(circle dot), and the final black hole mass is 62(-4)(+4) M-circle dot, with 3.0(-0.5)(+0.5) M(circle dot)c(2) 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.
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关键词
Stellar black hole,Rotating black hole,Binary black hole,Primordial black hole,Black hole,Intermediate-mass black hole,Spin-flip,X-ray binary,Astrophysics,Astronomy,Physics
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