GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence.

  title={GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence.},
  author={Brad Abbott and Richard J. Abbott and Thomas Abbott and Matthew Robert Abernathy and Fausto Acernese and Kendall Ackley and Carl Adams and Todd Adams and Paolo Addesso and Rana X. Adhikari and V B Adya and Christoph Affeldt and Michalis Agathos and Kazuhiro Agatsuma and Nancy Aggarwal and Odylio D. Aguiar and Lloyd Paul Aiello and Anirban Ain and Parameswaran Ajith and Bruce Allen and Annalisa Allocca and Paul A Altin and Stuart B. Anderson and Warren G. Anderson and Koji Arai and M. C. Araya and C. C. Arceneaux and Joseph Areeda and Nicolas Arnaud and K. G. Arun and Stefano Ascenzi and Gregory Ashton and Melanie Ast and Stuart M. Aston and Pia Astone and Peter Aufmuth and C. Aulbert and Stanislav Babak and Philippe Bacon and M. K. M. Bader and Paul T. Baker and F. Baldaccini and Giulio Ballardin and Stefan W. Ballmer and J. C. B. Barayoga and S. E. Barclay and Barry C. Barish and Daniel H. N. Barker and Fabrizio Barone and B. W. Barr and Lisa Barsotti and Matteo Barsuglia and D{\'a}niel Barta and Jms Bartlett and Imre Bartos and Riccardo Bassiri and Andrea Basti and J. C. Batch and Christoph Baune and Viswanath Bavigadda and Marco Bazzan and Michał Bejger and A. S. Bell and B. K. Berger and Gerald Bergmann and Christopher P. L. Berry and Diego Bersanetti and Alessandro Bertolini and J Betzwieser and Swetha Bhagwat and R. Bhandare and I. A. Bilenko and G Billingsley and Jeremy Birch and R Birney and Ofek Birnholtz and Sebastien Biscans and A. Bisht and Massimiliano Bitossi and Christopher Michael Biwer and M. A. Bizouard and J. K. Blackburn and Carl Blair and David G Blair and R. M. Blair and Steven Bloemen and Oliver Bock and Michel Boer and Gilles Bogaert and Christina Bogan and Alejandro Boh{\'e} and Charlotte Z. Bond and F. Bondu and Romain Bonnand and Boris A. Boom and R. G. Bork and Valerio Boschi and Sukanta Bose and Yann Bouffanais and Aaron T. Bozzi and C. Bradaschia and P. R. Brady and Vladimir B. Braginsky and Marica Branchesi and James E. Brau and Tristan Briant and A. Brillet and Martin Brinkmann and V. Brisson and Patrick Brockill and J. E. Broida and A. F. Brooks and D. A. Brown and D D Brown and Nic M. Brown and Sharon Brunett and C. C. Buchanan and Aaron Buikema and Tomasz Bulik and H. J. Bulten and Alessandra Buonanno and D. Buskulic and Christelle Buy and R. L. Byer and Miriam Cabero and Laura Cadonati and Gianpietro Cagnoli and C. Cahillane and Juan Calder{\'o}n Bustillo and Thomas A. Callister and Enrico Calloni and Jordan B. Camp and Kipp Cannon and J. Cao and C. D. Capano and Eleonora Capocasa and Franco Carbognani and Santiago Caride and Julia Casanueva Diaz and Claudio Casentini and Sarah Caudill and Marco Cavagli{\`a} and F. Cavalier and R. Cavalieri and Giancarlo Cella and Carlos Cepeda and Lorenzo Cerboni Baiardi and G. Cerretani and E. Cesarini and Sydney JoAnne Chamberlin and Man Leong Chan and S. Chao and P R Charlton and {\'E}ric Chassande-Mottin and Belinda D. Cheeseboro and H. Y. Chen and Y. R. Chen and C. Cheng and Andrea Chincarini and Antonino Chiummo and H. S. Cho and M. Cho and Jong H. Chow and Nelson Christensen and Qi Chu and Sheon S Y Chua and S. Chung and Giacomo Ciani and Filiberto Clara and J A Clark and F. Cleva and Eliana Marina Coccia and P.-F. Cohadon and Alberto Colla and Christophe Collette and Lynn R. Cominsky and Marcio Constancio and Andrea Conte and L Conti and D. Cook and T. R. Corbitt and Neil J. Cornish and Alessandra Corsi and Samuele Cortese and C. A. Costa and Michael W. Coughlin and S Coughlin and J.-P. Coulon and Stefanie Countryman and Peter Couvares and Edith Cowan and D. M. Coward and M. J. Cowart and D. C. Coyne and Robert Coyne and Kieran Craig and Jolien D. E. Creighton and Jonathan Cripe and S. Gwynne Crowder and Andrew Cumming and L. Cunningham and Elena Cuoco and Tito Dal Canton and S L Danilishin and Sabrina D’Antonio and Karsten Danzmann and N. S. Darman and Abhigyan Dasgupta and C F Da Silva Costa and Vincenzino Dattilo and Itishri Dave and M. Davier and G. S. Davies and E J Daw and Richard N. Day and Soumi De and Daniel B. DeBra and Gergely Debreczeni and J{\'e}r{\^o}me Degallaix and M. De Laurentis and Samuel Deleglise and Walter Del Pozzo and Thomas Denker and Thomas Dent and Vladimir Dergachev and Rosario De Rosa and R. T. Derosa and Riccardo DeSalvo and R. C. Devine and Sanjeev V. Dhurandhar and M. C. D{\'i}az and Luciano Di Fiore and Mauro di Giovanni and Tristano Di Girolamo and Alberto Di Lieto and Sibilla Di Pace and I. Di Palma and Angela D. V. Di Virgilio and Vincent Dolique and Frederick J. Donovan and K L Dooley and Suresh Doravari and Rebecca Douglas and Turlough P. Downes and M. Drago and Ronald W. P. Drever and J C Driggers and M. Ducrot and Sheila E. Dwyer and Tega Boro Edo and Matthew C. Edwards and Anamaria Effler and H. B. Eggenstein and Phil Ehrens and Jan Eichholz and Stephen S. Eikenberry and William Engels and Reed Essick and Taylor M. Etzel and Matthew Evans and Thomas M. Evans and Ryan Everett and Maxim Factourovich and V Fafone and H. Fair and Stephen Fairhurst and X. Fan and Qi Fang and Stefania Farinon and Benjamin Farr and Will M. Farr and Marc Favata and Maxime Fays and H. Fehrmann and Martin M. Fejer and Edit Fenyvesi and I. Ferrante and E.C. Ferreira and Federico Ferrini and Francesco Fidecaro and Irene Fiori and Donatella Fiorucci and Rebecca Fisher and R. Flaminio and Mark Fletcher and Heather Fong and J.-D. Fournier and Sergio Frasca and F. Frasconi and Zsolt Frei and Andreas Freise and Raymond E. Frey and Volker Frey and P. Fritschel and Valery Victor Frolov and P. J. Fulda and Matthew Fyffe and Hunter Gabbard and Jonathan R. Gair and Luca Gammaitoni and Sampada Gaonkar and F. Garufi and G. Gaur and N. C. Gehrels and Gianluca Gemme and P. Geng and Emmanuelle G{\'e}nin and A. Gennai and Julia George and L'aszl'o 'A. Gergely and Vincent Germain and Abhirup Ghosh and Archisman Ghosh and S. Ghosh and J. A. Giaime and K. D. Giardina and A. Giazotto and Karl Gill and A. Glaefke and Evan Goetz and Ryan P. Goetz and L{\'a}szl{\'o} Gond{\'a}n and Gabriela Gonz{\'a}lez and J. M. Gonzalez Castro and A. Gopakumar and N. A. Gordon and Michael L. Gorodetsky and Sarah E. Gossan and Matthieu Gosselin and R. Gouaty and Aniello Grado and Christian Graef and Philip Graff and Massimo Granata and A. Grant and Slawomir Gras and C. Gray and Giuseppe Greco and Andrew Green and Paul J. Groot and Hartmut Grote and S. Grunewald and G. Guidi and X. Guo and A. Gupta and M. Gupta and Kaitlin E. Gushwa and E. K. Gustafson and Richard Gustafson and Jan J. Hacker and Bernard R. Hall and Evan D. Hall and H. F. Hamilton and Giles D. Hammond and Maria Haney and M. M. Hanke and Jonathan Hanks and Chad Hanna and Mark Hannam and James E. Hanson and T Hardwick and Jan Harms and Gregory M. Harry and I. W. Harry and M. J. Hart and Michael T. Hartman and Carl-Johan Haster and K. Haughian and James Healy and Antoine Heidmann and Matthew Heintze and H. Heitmann and P. Hello and Gary Hemming and Martin Hendry and Ik Siong Heng and John Hennig and J. P. Henry and Alastair Heptonstall and Mich{\`e}le Heurs and Stefan Hild and David C. Hoak and David Jonathan Hofman and K. Holt and Daniel E. Holz and Philip F. Hopkins and James Hough and E. Alasdair Houston and E J Howell and Yi-ming Hu and S. Huang and Eliu A. Huerta and Dominique Huet and Barbara J. Hughey and Sascha Husa and S. H. Huttner and T. Huynh--Dinh and Nathaniel M. Indik and D. R. Ingram and Ra Inta and Hafizah Noor Isa and J. M. Isac and Maximiliano Isi and Tomoki Isogai and Bala R. Iyer and Kiwamu Izumi and T. Jacqmin and Haeng Jin Jang and Karan Jani and Piotr Jaranowski and S. Jawahar and Liu Jian and F. Jim{\'e}nez-Forteza and W. W. Johnson and Nathan K. Johnson-McDaniel and D. I. Jones and R. Jones and R. J. G. Jonker and Li Ju and Haris K and Chinmay Kalaghatgi and Vassiliki Kalogera and S Kandhasamy and G. Kang and Jonah Kanner and Shasvath J. Kapadia and Sudarshan Karki and Kai S. Karvinen and Marie Kasprzack and Erotokritos Katsavounidis and William G. Katzman and Steffen Kaufer and Tejinder Kaur and Keita Kawabe and Fabien K{\'e}f{\'e}lian and Marcel S. Kehl and David Keitel and David Bruce Kelley and William P. Kells and Ross Kennedy and Joey Shapiro Key and F. Ya. Khalili and I Khan and S. A. Khan and Z. A. Khan and E. A. Khazanov and N Kijbunchoo and Chi-Woong Kim and Chunglee Kim and J. H. Kim and K. Kim and N. G. Kim and W. S. Kim and Y.-M. Kim and Seth J. Kimbrell and Eleanor J King and P. J. King and J S Kissel and B. Klein and L. Kleybolte and Sergey Klimenko and S. M. Koehlenbeck and Soumen Koley and V. T. Kondrashov and Antonios Kontos and Mikhail Korobko and William Z Korth and Izabela Jonek Kowalska and Darby Kozak and V. Kringel and Badri Krishnan and Andrzej Kr{\'o}lak and C. Krueger and G. Kuehn and P. Kumar and R. Kumar and L. Kuo and Adam Kutynia and Benjamin D. Lackey and Michael Landry and Jacob Lange and Brian Lantz and Paul D. Lasky and Michael Laxen and Albert Lazzarini and Claudia Lazzaro and Paola Leaci and Sean Leavey and Eric O. Lebigot and C. H. Lee and H. K. Lee and H. m. Lee and K. H. Lee and Amber Lenon and Matteo Leonardi and Jonathan Leong and Nicolas Leroy and Nicolas Letendre and Yuri Levin and Jeffrey B. Lewis},
  journal={Physical review letters},
  volume={116 24},
We report the observation of a gravitational-wave signal produced by the coalescence of two stellar-mass black holes. The signal, GW151226, was observed by the twin detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) on December 26, 2015 at 03:38:53 UTC. The signal was initially identified within 70 s by an online matched-filter search targeting binary coalescences. Subsequent off-line analyses recovered GW151226 with a network signal-to-noise ratio of 13 and a… 

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