# GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence.

@article{Abbott2017GW170814AT, title={GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence.}, author={B. Abbott and R. Abbott and T. Abbott and F. Acernese and K. Ackley and C. Adams and T. Adams and P. Addesso and R. Adhikari and V. Adya and C. Affeldt and M. Afrough and B. Agarwal and M. Agathos and K. Agatsuma and N. Aggarwal and O. Aguiar and L. Aiello and A. Ain and P. Ajith and B. Allen and G. Allen and A. Allocca and P. Altin and A. Amato and A. Ananyeva and S. Anderson and W. Anderson and S. Angelova and S. Antier and S. Appert and K. Arai and M. Araya and J. Areeda and N. Arnaud and K. Arun and S. Ascenzi and G. Ashton and M. Ast and S. Aston and P. Astone and D. V. Atallah and P. Aufmuth and C. Aulbert and K. AultONeal and C. Austin and A. Avila-Alvarez and S. Babak and P. Bacon and M. Bader and S. Bae and P. Baker and F. Baldaccini and G. Ballardin and S. Ballmer and S. Banagiri and J. Barayoga and S. Barclay and B. Barish and D. Barker and K. Barkett and F. Barone and B. Barr and L. Barsotti and M. Barsuglia and D. Barta and S. Barthelmy and J. Bartlett and I. Bartos and R. Bassiri and A. Basti and J. Batch and M. Bawaj and J. Bayley and M. Bazzan and B. B'ecsy and C. Beer and M. Bejger and I. Belahcene and A. Bell and B. Berger and G. Bergmann and J. J. Bero and C. Berry and D. Bersanetti and A. Bertolini and J. Betzwieser and S. Bhagwat and R. Bhandare and I. Bilenko and G. Billingsley and C. Billman and J. Birch and R. Birney and O. Birnholtz and S. Biscans and S. Biscoveanu and A. Bisht and M. Bitossi and C. Biwer and M. Bizouard and J. Blackburn and J. Blackman and C. Blair and D. Blair and R. Blair and S. Bloemen and O. Bock and N. Bode and M. Boer and G. Bogaert and A. Boh{\'e} and F. Bondu and E. Bonilla and R. Bonnand and B. A. Boom and R. Bork and V. Boschi and S. Bose and K. Bossie and Y. Bouffanais and A. Bozzi and C. Bradaschia and P. Brady and M. Branchesi and J. Brau and T. Briant and A. Brillet and M. Brinkmann and V. Brisson and P. Brockill and J. Broida and A. Brooks and D. Brown and S. Brunett and C. Buchanan and A. Buikema and T. Bulik and H. Bulten and A. Buonanno and D. Buskulic and C. Buy and R. Byer and M. Cabero and L. Cadonati and G. Cagnoli and C. Cahillane and J. Calder{\'o}n Bustillo and T. Callister and E. Calloni and J. Camp and M. Canepa and P. Canizares and K. Cannon and H. Cao and J. Cao and C. Capano and E. Capocasa and F. Carbognani and S. Caride and M. Carney and J. Casanueva Diaz and C. Casentini and S. Caudill and M. Cavagli{\`a} and F. Cavalier and R. Cavalieri and G. Cella and C. Cepeda and P. Cerd{\'a}-Dur{\'a}n and G. Cerretani and E. Cesarini and S. Chamberlin and M. Chan and S. Chao and P. Charlton and E. Chase and {\'E}. Chassande-Mottin and D. Chatterjee and K. Chatziioannou and B. Cheeseboro and H. Chen and X. Chen and Y. Chen and H. Cheng and H. Chia and A. Chincarini and A. Chiummo and T. Chmiel and H. Cho and M. Cho and J. Chow and N. Christensen and Q. Chu and A. J. Chua and S. Chua and A. K. W. Chung and S. Chung and G. Ciani and R. Ciolfi and C. Cirelli and A. Cirone and F. Clara and J. Clark and P. Clearwater and F. Cleva and C. Cocchieri and E. Coccia and P. Cohadon and D. Cohen and A. Colla and C. Collette and L. Cominsky and M. Constancio and L. Conti and S. J. Cooper and P. Corban and T. Corbitt and I. Cordero-Carri{\'o}n and K. Corley and N. Cornish and A. Corsi and S. Cortese and C. A. Costa and M. Coughlin and S. Coughlin and J.-P. Coulon and S. Countryman and P. Couvares and P. B. Covas and E. Cowan and D. Coward and M. Cowart and D. Coyne and R. Coyne and J. Creighton and T. Creighton and J. Cripe and S. Crowder and T. Cullen and A. Cumming and L. Cunningham and E. Cuoco and T. Dal Canton and G. D'alya and S. Danilishin and S. D'Antonio and K. Danzmann and A. Dasgupta and C. F. Da Silva Costa and V. Dattilo and I. Dave and M. Davier and D. Davis and E. Daw and B. Day and S. De and D. Debra and J. Degallaix and M. De Laurentis and S. Del{\'e}glise and W. Del Pozzo and N. Demos and T. Denker and T. Dent and R. De Pietri and V. Dergachev and R. De Rosa and R. Derosa and C. De Rossi and R. DeSalvo and O. de Varona and J. Devenson and S. Dhurandhar and M. D'iaz and L. Di Fiore and M. Di Giovanni and T. Di Girolamo and A. Di Lieto and S. Di Pace and I. Di Palma and F. Di Renzo and Zoheyr Doctor and V. Dolique and F. Donovan and K. Dooley and S. Doravari and I. Dorrington and R. Douglas and M. Dovale {\'A}lvarez and T. Downes and M. Drago and C. Dreissigacker and J. Driggers and Z. Du and M. Ducrot and P. Dupej and S. Dwyer and T. Edo and M. Edwards and A. Effler and H. Eggenstein and P. Ehrens and J. Eichholz and S. Eikenberry and R. Eisenstein and R. Essick and D. Estevez and Z. Etienne and T. Etzel and M. Evans and T. Evans and M. Factourovich and V. Fafone and H. Fair and S. Fairhurst and X. Fan and S. Farinon and B. Farr and W. Farr and E. Fauchon-Jones and M. Favata and M. Fays and C. Fee and H. Fehrmann and J. Feicht and M. Fejer and A. Fernandez-Galiana and I. Ferrante and E. C. Ferreira and F. Ferrini and F. Fidecaro and D. Finstad and I. Fiori and D. Fiorucci and M. Fishbach and R. Fisher and M. Fitz-Axen and R. Flaminio and M. Fletcher and H. Fong and J. Font and P. Forsyth and S. Forsyth and J. Fournier and S. Frasca and F. Frasconi and Z. Frei and A. Freise and R. Frey and V. Frey and E. Fries and P. Fritschel and V. Frolov and P. Fulda and M. Fyffe and H. Gabbard and B. Gadre and S. Gaebel and J. Gair and L. Gammaitoni and M. Ganija and S. Gaonkar and C. Garc'ia-Quir'os and F. Garufi and B. Gateley and S. Gaudio and G. Gaur and V. Gayathri and N. Gehrels and G. Gemme and E. G{\'e}nin and A. Gennai and D. George and J. George and L. Gergely and V. Germain and S. Ghonge and A. Ghosh and S. Ghosh and J. Giaime and K. Giardina and A. Giazotto and K. Gill and L. Glover and E. Goetz and R. Goetz and S. Gomes and B. Goncharov and G. Gonz{\'a}lez and J. M. Gonzalez Castro and A. Gopakumar and M. Gorodetsky and S. Gossan and M. Gosselin and R. Gouaty and A. Grado and C. Graef and M. Granata and A. Grant and S. Gras and C. Gray and G. Greco and A. C. Green and E. M. Gretarsson and P. Groot and H. Grote and S. Grunewald and P. Gruning and G. Guidi and X. Guo and A. Gupta and M. Gupta and K. Gushwa and E. Gustafson and R. Gustafson and O. Halim and B. Hall and E. Hall and E. Hamilton and G. Hammond and M. Haney and M. Hanke and J. Hanks and C. Hanna and M. Hannam and O. A. Hannuksela and J. Hanson and T. Hardwick and J. Harms and G. Harry and I. Harry and M. Hart and C.-J. Haster and K. Haughian and J. Healy and A. Heidmann and M. Heintze and H. Heitmann and P. Hello and G. Hemming and M. Hendry and I. Heng and J. Hennig and A. Heptonstall and M. Heurs and S. Hild and T. Hinderer and D. Hoak and D. Hofman and K. Holt and D. Holz and P. Hopkins and C. Horst and J. Hough and E. Houston and E. Howell and Yi-ming Hu and E. Huerta and D. Huet and B. Hughey and S. Husa and S. Huttner and T. Huynh--Dinh and N. Indik and R. Inta and G. Intini and H. N. Isa and J. Isac and M. Isi and B. Iyer and K. Izumi and T. Jacqmin and K. Jani and P. Jaranowski and S. Jawahar and F. Jim'enez-Forteza and W. Johnson and N. Johnson-McDaniel and D. Jones and R. Jones and R. Jonker and L. Ju and J. Junker and C. Kalaghatgi and V. Kalogera and B. Kamai and S. Kandhasamy and G. Kang and J. Kanner and S. Kapadia and S. Karki and K. Karvinen and M. Kasprzack and M. Katolik and E. Katsavounidis and W. Katzman and S. Kaufer}, journal={Physical review letters}, year={2017}, volume={119 14}, pages={ 141101 } }

On August 14, 2017 at 10∶30:43 UTC, the Advanced Virgo detector and the two Advanced LIGO detectors coherently observed a transient gravitational-wave signal produced by the coalescence of two stellar mass black holes, with a false-alarm rate of ≲1 in 27 000 years. The signal was observed with a three-detector network matched-filter signal-to-noise ratio of 18. The inferred masses of the initial black holes are 30.5_{-3.0}^{+5.7}M_{⊙} and 25.3_{-4.2}^{+2.8}M_{⊙} (at the 90% credible level). The… Expand

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