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

B. P. Abbott(California Institute of Technology), R. Abbott(California Institute of Technology), T. D. Abbott(Louisiana State University), M. R. Abernathy(American University), F. Acernese(University of Salerno), K. Ackley(University of Florida), C. Adams(LIGO Scientific Collaboration), T. Adams(Laboratoire d’Annecy de Physique des Particules), P. Addesso(University of Sannio), R. X. Adhikari(California Institute of Technology), V. B. Adya(Max Planck Institute for Gravitational Physics), C. Affeldt(Max Planck Institute for Gravitational Physics), M. Agathos(National Institute for Subatomic Physics), K. Agatsuma(National Institute for Subatomic Physics), N. Aggarwal(Massachusetts Institute of Technology), O. D. Aguiar(Instituto Nacional de Pesquisas Espaciais), L. Aiello(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata), A. Ain(Inter-University Centre for Astronomy and Astrophysics), P. Ajith(Tata Institute of Fundamental Research), B. Allen(Leibniz University Hannover), A. Allocca(University of Pisa), P. A. Altin(Australian National University), S. B. Anderson(California Institute of Technology), W. G. Anderson(University of Wisconsin–Milwaukee), K. Arai(California Institute of Technology), M. C. Araya(California Institute of Technology), C. C. Arceneaux(University of Mississippi), J. S. Areeda(California State University, Fullerton), N. Arnaud(Université Paris-Sud), K. G. Arun(Chennai Mathematical Institute), S. Ascenzi(University of Rome Tor Vergata), G. Ashton(University of Southampton), M. Ast(Universität Hamburg), S. M. Aston(LIGO Scientific Collaboration), P. Astone(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), P. Aufmuth(Leibniz University Hannover), C. Aulbert(Max Planck Institute for Gravitational Physics), S. Babak(Max Planck Institute for Gravitational Physics), P. Bacon(Centre National de la Recherche Scientifique), M. K. M. Bader(National Institute for Subatomic Physics), P. T. Baker(Montana State University), F. Baldaccini(University of Perugia), G. Ballardin(European Gravitational Observatory), S. W. Ballmer(Syracuse University), J. C. Barayoga(California Institute of Technology), S. E. Barclay(University of Glasgow), B. C. Barish(California Institute of Technology), D. Barker, F. Barone(University of Salerno), B. Barr(University of Glasgow), L. Barsotti(Massachusetts Institute of Technology), M. Barsuglia(Centre National de la Recherche Scientifique), D. Barta(HUN-REN Wigner Research Centre for Physics), J. Bartlett, I. Bartos(Columbia University), R. Bassiri(Stanford University), A. Basti(University of Pisa), J. C. Batch, C. Baune(Max Planck Institute for Gravitational Physics), V. Bavigadda(European Gravitational Observatory), M. Bazzan(University of Padua), M. Bejger, A. S. Bell(University of Glasgow), B. K. Berger(California Institute of Technology), G. Bergmann(Max Planck Institute for Gravitational Physics), C. P. L. Berry(University of Birmingham), D. Bersanetti(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), A. Bertolini(National Institute for Subatomic Physics), J. Betzwieser(LIGO Scientific Collaboration), S. Bhagwat(Syracuse University), R. Bhandare(Raja Ramanna Centre for Advanced Technology), I. A. Bilenko(Lomonosov Moscow State University), G. Billingsley(California Institute of Technology), J. Birch(LIGO Scientific Collaboration), R. Birney(University of the West of Scotland), O. Birnholtz(Max Planck Institute for Gravitational Physics), S. Biscans(Massachusetts Institute of Technology), A. Bisht(Leibniz University Hannover), M. Bitossi(European Gravitational Observatory), C. Biwer(Syracuse University), M. A. Bizouard(Université Paris-Sud), J. K. Blackburn(California Institute of Technology), C. D. Blair(The University of Western Australia), D. G. Blair(The University of Western Australia), R. M. Blair, S. Bloemen(Radboud University Nijmegen), O. Bock(Max Planck Institute for Gravitational Physics), M. Boër(Université Côte d'Azur), G. Bogaert(Université Côte d'Azur), C. Bogan(Max Planck Institute for Gravitational Physics), A. Bohé(Max Planck Institute for Gravitational Physics), C. Bond(University of Birmingham), F. Bondu(Institut de Physique de Rennes), R. Bonnand(Laboratoire d’Annecy de Physique des Particules), B. A. Boom(National Institute for Subatomic Physics), R. Bork(California Institute of Technology), V. Boschi(University of Pisa), S. Bose(Inter-University Centre for Astronomy and Astrophysics), Y. Bouffanais(Centre National de la Recherche Scientifique), A. Bozzi(European Gravitational Observatory), C. Bradaschia(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), P. R. Brady(University of Wisconsin–Milwaukee), V. B. Braginsky(Lomonosov Moscow State University), M. Branchesi(University of Urbino), J. Brau(University of Oregon), T. Briant(Université Paris Sciences et Lettres), A. Brillet(Université Côte d'Azur), M. Brinkmann(Max Planck Institute for Gravitational Physics), V. Brisson(Université Paris-Sud), P. Brockill(University of Wisconsin–Milwaukee), J. E. Broida(Carleton College), A. F. Brooks(California Institute of Technology), D. Brown(Syracuse University), D. D. Brown(Syracuse University), N. M. Brown(Massachusetts Institute of Technology), S. Brunett(California Institute of Technology), C. C. Buchanan(Louisiana State University), A. Buikema(Massachusetts Institute of Technology), T. Bulik(Astronomical Observatory), H. J. Bulten(National Institute for Subatomic Physics), A. Buonanno(Max Planck Institute for Gravitational Physics), D. Buskulic(Laboratoire d’Annecy de Physique des Particules), C. Buy(Centre National de la Recherche Scientifique), R. L. Byer(Stanford University), M. Cabero(Max Planck Institute for Gravitational Physics), L. Cadonati(Georgia Institute of Technology), G. Cagnoli(Université Claude Bernard Lyon 1), C. Cahillane(California Institute of Technology), J. Calderón Bustillo(Georgia Institute of Technology), T. A. Callister(California Institute of Technology), E. Calloni(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), J. B. Camp(Goddard Space Flight Center), K. C. Cannon(The University of Tokyo), Jun Cao(Tsinghua University), C. D. Capano(Max Planck Institute for Gravitational Physics), E. Capocasa(Centre National de la Recherche Scientifique), F. Carbognani(European Gravitational Observatory), S. Caride(Texas Tech University), J. Casanueva Diaz(Université Paris-Sud), C. Casentini(University of Rome Tor Vergata), S. Caudill(University of Wisconsin–Milwaukee), M. Cavaglià(University of Mississippi), F. Cavalier(Université Paris-Sud), R. Cavalieri(European Gravitational Observatory), G. Cella(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), C. Cepeda(California Institute of Technology), L. Cerboni Baiardi(University of Urbino), G. Cerretani(University of Pisa), E. Cesarini(University of Rome Tor Vergata), S. J. Chamberlin(Pennsylvania State University), M. Chan(University of Glasgow), S. Chao(National Tsing Hua University), P. Charlton(Charles Sturt University), E. Chassande‐Mottin(Centre National de la Recherche Scientifique), B. D. Cheeseboro(West Virginia University), Hong‐Yuan Chen(University of Chicago), Y. Chen(California Institute of Technology), C. Cheng(National Tsing Hua University), A. Chincarini(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), A. Chiummo(European Gravitational Observatory), H. S. Cho(Korea Institute of Science & Technology Information), M. Cho(University of Maryland, College Park), J. H. Chow(Australian National University), N. Christensen(Carleton College), Q. Chu(The University of Western Australia), S. Chua(Université Paris Sciences et Lettres), S. Chung(The University of Western Australia), G. Ciani(University of Florida), F. Clara, J. A. Clark(Georgia Institute of Technology), F. Cleva(Université Côte d'Azur), E. Coccia(University of Rome Tor Vergata), P.-F. Cohadon(Université Paris Sciences et Lettres), A. Colla(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), Christophe Collette, L. Cominsky(Sonoma State University), M. Constancio(Instituto Nacional de Pesquisas Espaciais), A. Conte(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), L. Conti(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), D. Cook, T. R. Corbitt(Louisiana State University), N. Cornish(Montana State University), A. Corsi(Texas Tech University), S. Cortese(European Gravitational Observatory), C. A. Costa(Instituto Nacional de Pesquisas Espaciais), M. W. Coughlin(Carleton College), S. B. Coughlin(Northwestern University), J.-P. Coulon(Université Côte d'Azur), S. T. Countryman(Columbia University), P. Couvares(California Institute of Technology), E. E. Cowan(Georgia Institute of Technology), D. M. Coward(The University of Western Australia), M. J. Cowart(LIGO Scientific Collaboration), D. C. Coyne(California Institute of Technology), R. Coyne(Texas Tech University), K. Craig(University of Glasgow), J. D. E. Creighton(University of Wisconsin–Milwaukee), J. Cripe(Louisiana State University), S. G. Crowder(University of Minnesota), A. Cumming(University of Glasgow), L. Cunningham(University of Glasgow), E. Cuoco(European Gravitational Observatory), T. Dal Canton(Max Planck Institute for Gravitational Physics), S. L. Danilishin(University of Glasgow), S. D’Antonio(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata), K. Danzmann(Leibniz University Hannover), N. S. Darman(The University of Melbourne), A. Dasgupta(Institute for Plasma Research), C. F. Da Silva Costa(University of Florida), V. Dattilo(European Gravitational Observatory), I. Dave(Raja Ramanna Centre for Advanced Technology), M. Davier(Université Paris-Sud), G. S. Davies(University of Glasgow), E. J. Daw(University of Sheffield), R. Day(European Gravitational Observatory), D. DeBra(Syracuse University), D. DeBra(Stanford University), G. Debreczeni(HUN-REN Wigner Research Centre for Physics), J. Degallaix(Laboratoire des Matériaux Avancés), M. De Laurentis(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), S. Deléglise(Université Paris Sciences et Lettres), W. Del Pozzo(University of Birmingham), T. Denker(Max Planck Institute for Gravitational Physics), T. Dent(Max Planck Institute for Gravitational Physics), V. Dergachev(California Institute of Technology), R. De Rosa(LIGO Scientific Collaboration), R. T. DeRosa(LIGO Scientific Collaboration), R. DeSalvo(University of Sannio), R. C. Devine(West Virginia University), S. Dhurandhar(Inter-University Centre for Astronomy and Astrophysics), M. C. Díaz(The University of Texas Rio Grande Valley), L. Di Fiore(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), M. Di Giovanni(University of Trento), T. Di Girolamo(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), A. Di Lieto(University of Pisa), S. Di Pace(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), I. Di Palma(Max Planck Institute for Gravitational Physics), A. Di Virgilio(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), V. Dolique(Laboratoire des Matériaux Avancés), F. Donovan(Massachusetts Institute of Technology), K. L. Dooley(University of Mississippi), S. Doravari(Max Planck Institute for Gravitational Physics), R. Douglas(University of Glasgow), T. P. Downes(University of Wisconsin–Milwaukee), M. Drago(Max Planck Institute for Gravitational Physics), R. W. P. Drever(California Institute of Technology), J. C. Driggers, M. Ducrot(Laboratoire d’Annecy de Physique des Particules), S. E. Dwyer, T. B. Edo(University of Sheffield), M. C. Edwards(Carleton College), A. Effler(LIGO Scientific Collaboration), H.-B. Eggenstein(Max Planck Institute for Gravitational Physics), P. Ehrens(California Institute of Technology), J. Eichholz(California Institute of Technology), S. S. Eikenberry(University of Florida), W. Engels(California Institute of Technology), R. C. Essick(Massachusetts Institute of Technology), T. Etzel(California Institute of Technology), M. Evans(Massachusetts Institute of Technology), T. M. Evans(LIGO Scientific Collaboration), R. Everett(Pennsylvania State University), M. Factourovich(Columbia University), V. Fafone(University of Rome Tor Vergata), H. Fair(Syracuse University), S. Fairhurst(Cardiff University), X. Fan(Tsinghua University), Q. Fang(The University of Western Australia), S. Farinon(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), B. Farr(University of Chicago), B. Farr(University of Birmingham), M. Favata(Montclair State University), M. Fays(Cardiff University), H. Fehrmann(Max Planck Institute for Gravitational Physics), M. M. Fejer(Stanford University), E. Fenyvesi(Eötvös Loránd University), I. Ferrante(University of Pisa), E. C. Ferreira(Instituto Nacional de Pesquisas Espaciais), F. Ferrini(European Gravitational Observatory), F. Fidecaro(University of Pisa), I. Fiori(European Gravitational Observatory), D. Fiorucci(Centre National de la Recherche Scientifique), R. P. Fisher(Syracuse University), R. Flaminio(Laboratoire des Matériaux Avancés), M. Fletcher(University of Glasgow), H. Fong(University of Toronto), J.-D. Fournier(Université Côte d'Azur), S. Frasca(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), F. Frasconi(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), Z. Frei(Eötvös Loránd University), A. Freise(University of Birmingham), R. Frey(University of Oregon), R. Frey(Université Paris-Sud), P. Fritschel(Massachusetts Institute of Technology), V. V. Frolov(LIGO Scientific Collaboration), P. Fulda(University of Florida), M. Fyffe(LIGO Scientific Collaboration), H. A. Gabbard(University of Mississippi), J. R. Gair(University of Edinburgh), L. Gammaitoni(University of Perugia), S. G. Gaonkar(Inter-University Centre for Astronomy and Astrophysics), F. Garufi(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), G. Gaur(Indian Institute of Technology Gandhinagar), N. Gehrels(Goddard Space Flight Center), G. Gemme(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), Peng Geng(The University of Texas Rio Grande Valley), E. Genin(European Gravitational Observatory), A. Gennai(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), J. George(Raja Ramanna Centre for Advanced Technology), L. Gergely(University of Szeged), V. Germain(Laboratoire d’Annecy de Physique des Particules), Abhirup Ghosh(Tata Institute of Fundamental Research), Archisman Ghosh(Tata Institute of Fundamental Research), Shrobana Ghosh(Radboud University Nijmegen), J. A. Giaime(Louisiana State University), K. D. Giardina(LIGO Scientific Collaboration), A. Giazotto(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), K. Gill(Embry–Riddle Aeronautical University), A. Glaefke(University of Glasgow), E. Goetz, E. Goetz(University of Florida), L. Gondan(Eötvös Loránd University), G. González(Louisiana State University), J. M. Gonzalez Castro(University of Pisa), A. Gopakumar(Tata Institute of Fundamental Research), Neil Gordon(University of Glasgow), M. L. Gorodetsky(Lomonosov Moscow State University), S. E. Gossan(California Institute of Technology), M. Gosselin(European Gravitational Observatory), R. Gouaty(Laboratoire d’Annecy de Physique des Particules), A. Grado(Astronomical Observatory of Capodimonte), C. Graef(University of Glasgow), P. B. Graff(University of Maryland, College Park), M. Granata(Laboratoire des Matériaux Avancés), A. Grant(University of Glasgow), S. Gras(Massachusetts Institute of Technology), C. Gray, G. Greco(University of Urbino), A. C. Green(University of Birmingham), P. Groot(Radboud University Nijmegen), H. Grote(Max Planck Institute for Gravitational Physics), S. Grünewald(Max Planck Institute for Gravitational Physics), G. M. Guidi(University of Urbino), X. Guo(Tsinghua University), Anchal Gupta(Inter-University Centre for Astronomy and Astrophysics), Manoj Gupta(Institute for Plasma Research), K. E. Gushwa(California Institute of Technology), E. K. Gustafson(California Institute of Technology), R. Gustafson(University of Michigan), J. J. Hacker(California State University, Fullerton), E. D. Hall(Washington State University), E. D. Hall(California Institute of Technology), H. F. Hamilton(Abilene Christian University), G. Hammond(University of Glasgow), M. Haney(Tata Institute of Fundamental Research), M. M. Hanke(Max Planck Institute for Gravitational Physics), J. Hanks, C. Hanna(Pennsylvania State University), M. D. Hannam(Cardiff University), J. Hanson(LIGO Scientific Collaboration), T. Hardwick(Louisiana State University), J. Harms(University of Urbino), I. W. Harry(American University), I. W. Harry(Max Planck Institute for Gravitational Physics), M. J. Hart(University of Glasgow), M. T. Hartman(University of Florida), C.‐J. Haster(University of Birmingham), K. Haughian(University of Glasgow), J. Healy(Rochester Institute of Technology), A. Heidmann(Université Paris Sciences et Lettres), M. C. Heintze(LIGO Scientific Collaboration), H. Heitmann(Université Côte d'Azur), P. Hello(Université Paris-Sud), G. Hemming(European Gravitational Observatory), M. Hendry(University of Glasgow), I. S. Heng(University of Glasgow), J. Hennig(University of Glasgow), J. Henry(Rochester Institute of Technology), A. W. Heptonstall(California Institute of Technology), M. Heurs(Leibniz University Hannover), S. Hild(University of Glasgow), D. Hoak(European Gravitational Observatory), D. Hofman(Laboratoire des Matériaux Avancés), K. Holt(LIGO Scientific Collaboration), D. E. Holz(University of Chicago), Philip F. Hopkins(Cardiff University), J. Hough(University of Glasgow), E. A. Houston(University of Glasgow), E. J. Howell(The University of Western Australia), Yi-Ming Hu(Max Planck Institute for Gravitational Physics), S. Huang(National Tsing Hua University), E. A. Huerta(University of Illinois Urbana-Champaign), D. Huet(Université Paris-Sud), B. Hughey(Embry–Riddle Aeronautical University), S. Husa(Fundació Universitat-Empresa de les Illes Balears), S. H. Huttner(University of Glasgow), T. Huynh-Dinh(LIGO Scientific Collaboration), N. Indik(Max Planck Institute for Gravitational Physics), D. R. Ingram, R. Inta(Texas Tech University), H. N. Isa(University of Glasgow), J.-M. Isac(Université Paris Sciences et Lettres), M. Isi(California Institute of Technology), T. Isogai(Massachusetts Institute of Technology), B. R. Iyer(Tata Institute of Fundamental Research), K. Izumi, T. Jacqmin(Université Paris Sciences et Lettres), H. Jang(Korea Institute of Science & Technology Information), K. Jani(Georgia Institute of Technology), P. Jaranowski(University of Białystok), S. Jawahar(University of Strathclyde), L. K. Jian(The University of Western Australia), F. Jiménez‐Forteza(Fundació Universitat-Empresa de les Illes Balears), W. W. Johnson(Louisiana State University), Nathan K. Johnson-McDaniel(Tata Institute of Fundamental Research), D. I. Jones(University of Southampton), R. W. L. Jones(University of Glasgow), R. J. G. Jonker(National Institute for Subatomic Physics), L. Ju(The University of Western Australia), K. Haris(Indian Institute of Science Education and Research Thiruvananthapuram), C. V. Kalaghatgi(Cardiff University), V. Kalogera(Northwestern University), S. Kandhasamy(University of Mississippi), G. Kang(Korea Institute of Science & Technology Information), J. B. Kanner(California Institute of Technology), S. J. Kapadia(Max Planck Institute for Gravitational Physics), S. Karki(University of Oregon), K. S. Karvinen(Max Planck Institute for Gravitational Physics), M. Kasprzack(Louisiana State University), E. Katsavounidis(Massachusetts Institute of Technology), W. Katzman(LIGO Scientific Collaboration), S. Kaufer(Leibniz University Hannover), T. Kaur(The University of Western Australia), K. Kawabe, F. Kéfélian(Université Côte d'Azur), M. S. Kehl(University of Toronto), D. Keitel(Fundació Universitat-Empresa de les Illes Balears), D. B. Kelley(Syracuse University), W. Kells(California Institute of Technology), R. Kennedy(University of Sheffield), J. S. Key(The University of Texas Rio Grande Valley), F. Y. Khalili(Lomonosov Moscow State University), I. Khan(Gran Sasso Science Institute), S. Khan(Cardiff University), Z. Khan(Institute for Plasma Research), Е. А. Хазанов(Institute of Applied Physics), N. Kijbunchoo, Chi-Woong Kim(Korea Institute of Science & Technology Information), Chunglee Kim(Korea Institute of Science & Technology Information), J. Kim(Pusan National University), K. Kim(Hanyang University), Nakwoo Kim(Stanford University), W. Kim(The University of Adelaide), Y.-M Kim(Pusan National University), S. J. Kimbrell(Georgia Institute of Technology), E. J. King(The University of Adelaide), Peter King, J. S. Kissel, Bernd Klein(Northwestern University), L. Kleybolte(Universität Hamburg), S. Klimenko(University of Florida), S. M. Koehlenbeck(Max Planck Institute for Gravitational Physics), S. Koley(National Institute for Subatomic Physics), V. Kondrashov(California Institute of Technology), A. Kontos(Massachusetts Institute of Technology), M. Korobko(Universität Hamburg), W. Z. Korth(California Institute of Technology), I. Kowalska(Astronomical Observatory), D. B. Kozak(California Institute of Technology), V. Kringel(Max Planck Institute for Gravitational Physics), B. Krishnan(Max Planck Institute for Gravitational Physics), A. Królak(Institute of Mathematics), C. Krueger(Leibniz University Hannover), G. Kuehn(Max Planck Institute for Gravitational Physics), P. Kumar(University of Toronto), S. Kumar(Institute for Plasma Research), L. Kuo(National Tsing Hua University), A. Kutynia(National Centre for Nuclear Research), B. D. Lackey(Syracuse University), M. Landry, J. Lange(Rochester Institute of Technology), B. Lantz(Stanford University), P. D. Lasky(Australian Regenerative Medicine Institute), M. Laxen(LIGO Scientific Collaboration), A. Lazzarini(California Institute of Technology), C. Lazzaro(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), P. Leaci(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), S. Leavey(University of Glasgow), E. O. Lebigot(Agence Parisienne du Climat), Chang‐Hwan Lee(Pusan National University), H. K. Lee(Seoul National University), Hyung Mok Lee(Seoul National University), K. Lee(University of Glasgow), A. Lenon(Syracuse University), M. Leonardi(University of Trento), J. R. Leong(Max Planck Institute for Gravitational Physics), N. Leroy(Université Paris-Sud), N. Letendre(Laboratoire d’Annecy de Physique des Particules), Y. Levin(Australian Regenerative Medicine Institute), J. B. Lewis(California Institute of Technology), T. G. F. Li(Chinese University of Hong Kong), A. Libson(Massachusetts Institute of Technology), T. B. Littenberg(University of Alabama in Huntsville), N. A. Lockerbie(University of Strathclyde), A. L. Lombardi(University of Massachusetts Amherst), L. T. London(Cardiff University), J. E. Lord(Syracuse University), M. Lorenzini(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata), V. Loriette(Centre National de la Recherche Scientifique), M. Lormand(LIGO Scientific Collaboration), G. Losurdo(Istituto Nazionale di Fisica Nucleare, Sezione di Firenze), J. D. Lough(Leibniz University Hannover), C. O. Lousto(Rochester Institute of Technology), H. Lück(Leibniz University Hannover), A. P. Lundgren(Max Planck Institute for Gravitational Physics), Ryan S. Lynch(Massachusetts Institute of Technology), Ying Ma(The University of Western Australia), B. Machenschalk(Max Planck Institute for Gravitational Physics), M. MacInnis(Massachusetts Institute of Technology), D. M. Macleod(Louisiana State University), F. Magaña-Sandoval(Syracuse University), L. Magaña Zertuche(Syracuse University), R. M. Magee(Washington State University), E. Majorana(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), I. Maksimovic(Centre National de la Recherche Scientifique), V. Malvezzi(University of Rome Tor Vergata), N. Man(Université Côte d'Azur), Ilya Mandel(University of Birmingham), V. Mandic(University of Minnesota), V. Mangano(University of Glasgow), G. L. Mansell(Australian National University), M. Manske(University of Wisconsin–Milwaukee), M. Mantovani(European Gravitational Observatory), F. Marchesoni(Università di Camerino), F. Marion(Laboratoire d’Annecy de Physique des Particules), Szabolcs Márka(Columbia University), Z. Márka(Columbia University), A. S. Markosyan(Stanford University), E. Maros(California Institute of Technology), F. Martelli(University of Urbino), Lionel Martellini(Université Côte d'Azur), I. W. Martin(University of Glasgow), Д. В. Мартынов(Massachusetts Institute of Technology), J. N. Marx(California Institute of Technology), K. Mason(Massachusetts Institute of Technology), A. Masserot(Laboratoire d’Annecy de Physique des Particules), T. J. Massinger(Syracuse University), M. Masso‐Reid(University of Glasgow), S. Mastrogiovanni(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), F. Matichard(Massachusetts Institute of Technology), L. Matone(Columbia University), N. Mavalvala(Massachusetts Institute of Technology), N. Mazumder(Washington State University), R. McCarthy, D. E. McClelland(Australian National University), S. McCormick(LIGO Scientific Collaboration), S. C. McGuire(Southern University and Agricultural and Mechanical College), G. McIntyre(California Institute of Technology), J. McIver(California Institute of Technology), D. J. McManus(Australian National University), T. McRae(Australian National University), S. T. McWilliams(West Virginia University), D. Meacher(Pennsylvania State University), G. D. Meadors(Max Planck Institute for Gravitational Physics), J. Meidam(National Institute for Subatomic Physics), A. Melatos(The University of Melbourne), G. Mendell, R. A. Mercer(University of Wisconsin–Milwaukee), E. L. Merilh, M. Merzougui(Université Côte d'Azur), S. Meshkov(California Institute of Technology), C. Messenger(University of Glasgow), C. Messick(Pennsylvania State University), R. Metzdorff(Université Paris Sciences et Lettres), P. M. Meyers(University of Minnesota), F. Mezzani(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), H. Miao(University of Birmingham), C. Michel(Laboratoire des Matériaux Avancés), H. Middleton(University of Birmingham), Е. Е. Михайлов(William & Mary), L. Milano(Istituto Nazionale di Fisica Nucleare, Sezione di Napoli), A. L. Miller(University of Florida), A. L. Miller(Northwestern University), B. B. Miller(Northwestern University), J. M. Mïller(Massachusetts Institute of Technology), M. Millhouse(Montana State University), Y. Minenkov(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata), J. Ming(Max Planck Institute for Gravitational Physics), S. Mirshekari(American Institute for Economic Research), C. Mishra(Tata Institute of Fundamental Research), S. Mitra(Inter-University Centre for Astronomy and Astrophysics), O. Miyakawa(Lomonosov Moscow State University), G. Mitselmakher(University of Florida), R. Mittleman(Massachusetts Institute of Technology), A. Moggi(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), M. Mohan(European Gravitational Observatory), S. R. P. Mohapatra(Massachusetts Institute of Technology), M. Montani(University of Urbino), B. C. Moore(Montclair State University), C. J. Moore(University of Cambridge), D. Moraru, G. Moreno, S. R. Morriss(The University of Texas Rio Grande Valley), K. Mossavi(Max Planck Institute for Gravitational Physics), B. Mours(Laboratoire d’Annecy de Physique des Particules), C. M. Mow–Lowry(University of Birmingham), G. Mueller(University of Florida), A. W. Muir(Cardiff University), Arunava Mukherjee(Tata Institute of Fundamental Research), D. Mukherjee(University of Wisconsin–Milwaukee), S. Mukherjee(The University of Texas Rio Grande Valley), N. Mukund(Inter-University Centre for Astronomy and Astrophysics), A. Mullavey(LIGO Scientific Collaboration), J. Munch(The University of Adelaide), D. Murphy(Columbia University), P. G. Murray(University of Glasgow), A. Mytidis(University of Florida), I. Nardecchia(University of Rome Tor Vergata), L. Naticchioni(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), R. K. Nayak(Indian Institute of Science Education and Research Kolkata), K. Nedkova(University of Massachusetts Amherst), G. Nelemans(Radboud University Nijmegen), T. J. N. Nelson(LIGO Scientific Collaboration), M. Néri(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), A. Neunzert(University of Michigan), G. Newton(University of Glasgow), T. T. Nguyen(Australian National University), A. B. Nielsen(Max Planck Institute for Gravitational Physics), S. Nissanke(Radboud University Nijmegen), A. Nitz(Max Planck Institute for Gravitational Physics), F. Nocera(European Gravitational Observatory), D. Nolting(LIGO Scientific Collaboration), M. E. N. Normandin(The University of Texas Rio Grande Valley), L. K. Nuttall(Syracuse University), J. Oberling, E. Ochsner(University of Wisconsin–Milwaukee), J. O’Dell(Rutherford Appleton Laboratory), E. Oelker(Massachusetts Institute of Technology), G. H. Ogin(Whitman College), J. J. Oh(National Institute for Mathematical Sciences), S. H. Oh(National Institute for Mathematical Sciences), F. Ohme(Cardiff University), M. Oliver(Fundació Universitat-Empresa de les Illes Balears), P. Oppermann(Max Planck Institute for Gravitational Physics), Richard J. Oram(LIGO Scientific Collaboration), B. O’Reilly(LIGO Scientific Collaboration), R. O’Shaughnessy(Rochester Institute of Technology), D. J. Ottaway(The University of Adelaide), H. Overmier(LIGO Scientific Collaboration), B. J. Owen(Texas Tech University), A. Pai(Indian Institute of Science Education and Research Thiruvananthapuram), S. A. Pai(Raja Ramanna Centre for Advanced Technology), J. R. Palamos(University of Oregon), Oleg Palashov(Institute of Applied Physics), C. Palomba(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), A. Pal‐Singh(Universität Hamburg), H. Pan(National Tsing Hua University), C. Pankow(Northwestern University), F. Pannarale(Cardiff University), B. C. Pant(Raja Ramanna Centre for Advanced Technology), F. Paoletti(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), A. Paoli(European Gravitational Observatory), M. A. Papa(Max Planck Institute for Gravitational Physics), H. R. Paris(Stanford University), J. Park(LIGO Scientific Collaboration), D. Pascucci(University of Glasgow), A. Pasqualetti(European Gravitational Observatory), R. Passaquieti(University of Pisa), D. Passuello(Istituto Nazionale di Fisica Nucleare, Sezione di Pisa), B. Patricelli(University of Pisa), Z. Patrick(Stanford University), B. L. Pearlstone(University of Glasgow), M. Pedraza(California Institute of Technology), R. Pedurand(Université de Lyon), L. Pekowsky(Syracuse University), A. Pele(LIGO Scientific Collaboration), S. Penn(Hobart and William Smith Colleges), A. Perreca(California Institute of Technology), L. M. Perri(Northwestern University), Harald Pfeiffer(University of Toronto), M. Phelps(University of Glasgow), O. J. Piccinni(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), M. Pichot(Université Côte d'Azur), F. Piergiovanni(University of Urbino), V. Pierro(University of Sannio), G. Pillant(European Gravitational Observatory), L. Pinard(Laboratoire des Matériaux Avancés), I. M. Pinto(University of Sannio), M. Pitkin(University of Glasgow), M. Poe(University of Wisconsin–Milwaukee), R. Poggiani(University of Pisa), P. Popolizio(European Gravitational Observatory), A. Post(Max Planck Institute for Gravitational Physics), J. Powell(University of Glasgow), J. Prasad(Inter-University Centre for Astronomy and Astrophysics), V. Predoi(Cardiff University), T. Prestegard(University of Minnesota), L. R. Price(California Institute of Technology), M. Prijatelj(Max Planck Institute for Gravitational Physics), M. Principe(University of Sannio), S. Privitera(Max Planck Institute for Gravitational Physics), R. Prix(Max Planck Institute for Gravitational Physics), G. A. Prodi(University of Trento), L. Prokhorov(Lomonosov Moscow State University), O. Puncken(Max Planck Institute for Gravitational Physics), M. Punturo(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia), P. Puppo(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), M. Pürrer(Max Planck Institute for Gravitational Physics), H. Qi(University of Wisconsin–Milwaukee), J. Qin(The University of Western Australia), S. Qiu(Australian Regenerative Medicine Institute), V. Quetschke(The University of Texas Rio Grande Valley), E. A. Quintero(California Institute of Technology), R. Quitzow-James(University of Oregon), F. J. Raab, D. S. Rabeling(Australian National University), H. Radkins, P. Raffai(Eötvös Loránd University), S. Raja(Raja Ramanna Centre for Advanced Technology), C. Rajan(Raja Ramanna Centre for Advanced Technology), M. Rakhmanov(The University of Texas Rio Grande Valley), P. Rapagnani(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), V. Raymond(Max Planck Institute for Gravitational Physics), M. Razzano(University of Pisa), V. Re(University of Rome Tor Vergata), J. Read(California State University, Fullerton), C. M. Reed, T. Regimbau(Université Côte d'Azur), L. Rei(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), S. Reid(University of the West of Scotland), D. H. Reitze(California Institute of Technology), H. Rew(William & Mary), S. D. Reyes(Syracuse University), F. Ricci(Istituto Nazionale di Fisica Nucleare, Sezione di Roma I), K. Riles(University of Michigan), M. Rizzo(Rochester Institute of Technology), N. A. Robertson(California Institute of Technology), R. Robie(University of Glasgow), F. Robinet(Université Paris-Sud), A. Rocchi(Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata), L. Rolland(Laboratoire d’Annecy de Physique des Particules), J. G. Rollins(California Institute of Technology), V. J. Roma(University of Oregon), J. D. Romano(The University of Texas Rio Grande Valley), R. Romano(University of Salerno), G. Romanov(William & Mary), J. H. Romie(LIGO Scientific Collaboration), D. Rosińska(University of Zielona Góra), S. Rowan(University of Glasgow), A. Rüdiger(Max Planck Institute for Gravitational Physics), P. Ruggi(European Gravitational Observatory), K. Ryan, S. Sachdev(California Institute of Technology), E. Ruiz Morales, L. Sadeghian(University of Wisconsin–Milwaukee), Mairi Sakellariadou(University of London), L. Salconi(European Gravitational Observatory), M. Saleem(Indian Institute of Science Education and Research Thiruvananthapuram), F. Salemi(Max Planck Institute for Gravitational Physics), A. Samajdar(Indian Institute of Science Education and Research Kolkata), L. Sammut(Australian Regenerative Medicine Institute), E. J. Sanchez(California Institute of Technology), V. Sandberg, B. Sandeen(Northwestern University), J. R. Sanders(Syracuse University), B. Sassolas(Laboratoire des Matériaux Avancés), B. S. Sathyaprakash(Cardiff University), P. R. Saulson(Syracuse University), O. E. S. Sauter(University of Michigan), R. L. Savage, A. Sawadsky(Leibniz University Hannover), P. Schale(University of Oregon), R. Schilling(Max Planck Institute for Gravitational Physics), P. Schmidt(Max Planck Institute for Gravitational Physics), P. Schmidt(California Institute of Technology), R. Schnabel(Universität Hamburg), R. M. S. Schofield(University of Oregon), A. Schönbeck(Universität Hamburg), E. Schreiber(Max Planck Institute for Gravitational Physics), D. Schuette(Leibniz University Hannover), B. F. Schutz(Max Planck Institute for Gravitational Physics), J. Scott(University of Glasgow), S. M. Scott(Australian National University), D. Sellers(LIGO Scientific Collaboration), A. S. Sengupta(Indian Institute of Technology Gandhinagar), D. Sentenac(European Gravitational Observatory), V. Sequino(University of Rome Tor Vergata), A. M. Sergeev(Institute of Applied Physics), Y. Setyawati(Radboud University Nijmegen), D. A. Shaddock(Australian National University), T. Shaffer, M. S. Shahriar(Northwestern University), M. Shaltev(Max Planck Institute for Gravitational Physics), B. Shapiro(Stanford University), P. Shawhan(University of Maryland, College Park), A. Sheperd(University of Wisconsin–Milwaukee), D. H. Shoemaker(Georgia Institute of Technology), D. M. Shoemaker(Georgia Institute of Technology), K. Siellez(Georgia Institute of Technology), X. Siemens(University of Wisconsin–Milwaukee), M. Sieniawska, D. Sigg, A. D. Silva(Instituto Nacional de Pesquisas Espaciais), A. Singer(California Institute of Technology), L. P. Singer(Goddard Space Flight Center), Avinash Singh(Leibniz University Hannover), R. Singh(Louisiana State University), A. Singhal(Gran Sasso Science Institute), A. M. Sintes(Fundació Universitat-Empresa de les Illes Balears), B. J. J. Slagmolen(Australian National University), J. R. Smith(California State University, Fullerton), Nicholas D. Smith(California Institute of Technology), R. J. E. Smith(California Institute of Technology), E. J. Son(National Institute for Mathematical Sciences), B. Sorazu(University of Glasgow), F. Sorrentino(Istituto Nazionale di Fisica Nucleare, Sezione di Genova), T. Souradeep(Inter-University Centre for Astronomy and Astrophysics), A. K. Srivastava(Institute for Plasma Research), A. Staley(Columbia University), M. Steinke(Max Planck Institute for Gravitational Physics), J. Steinlechner(University of Glasgow), S. Steinlechner(University of Glasgow), D. Steinmeyer(Leibniz University Hannover), B. C. Stephens(University of Wisconsin–Milwaukee), S. P. Stevenson(University of Birmingham), R. Stone(The University of Texas Rio Grande Valley), K. A. Strain(University of Glasgow), N. Straniero(Laboratoire des Matériaux Avancés), G. Stratta(University of Urbino), N. A. Strauss(Carleton College), S. Strigin(Lomonosov Moscow State University), R. Sturani(American Institute for Economic Research), A. L. Stuver(LIGO Scientific Collaboration), T. Z. Summerscales(Andrews University), L. Sun(The University of Melbourne), L. Sun(Institute for Plasma Research), P. J. Sutton(Cardiff University), B. L. Swinkels(European Gravitational Observatory), M. J. Szczepańczyk(Embry–Riddle Aeronautical University), M. Tacca(Centre National de la Recherche Scientifique), D. Talukder(University of Oregon), D. B. Tanner(University of Florida), M. Tápai(University of Szeged), S. P. Tarabrin(Max Planck Institute for Gravitational Physics), A. Taracchini(Max Planck Institute for Gravitational Physics), Richard W. Taylor(California Institute of Technology), T. Theeg(Max Planck Institute for Gravitational Physics), M. P. Thirugnanasambandam(California Institute of Technology), E. G. Thomas(University of Birmingham), M. Thomas(LIGO Scientific Collaboration), P. Thomas, K. A. Thorne(LIGO Scientific Collaboration), E. Thrane(Australian Regenerative Medicine Institute), Shubhanshu Tiwari(Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications), V. Tiwari(Cardiff University), K. V. Tokmakov(University of Strathclyde), K. Toland(University of Glasgow), C. Tomlinson(University of Sheffield), M. Tonelli(University of Pisa), Z. Tornasi(University of Glasgow), C. Torres(The University of Texas Rio Grande Valley), C. I. Torrie(California Institute of Technology), D. Töyrä(University of Birmingham), F. Travasso(University of Perugia), G. Traylor(LIGO Scientific Collaboration), D. Trifirò(University of Mississippi), M. C. Tringali(University of Trento), L. Trozzo(University of Siena), M. Tse(Massachusetts Institute of Technology), M. Turconi(Université Côte d'Azur), D. Tuyenbayev(The University of Texas Rio Grande Valley), D. Ugolini(Trinity University), B. Krishnan(Tata Institute of Fundamental Research), A. L. Urban(University of Wisconsin–Milwaukee), S. A. Usman(Syracuse University), H. Vahlbruch(Leibniz University Hannover), G. Vajente(California Institute of Technology), G. Valdes(The University of Texas Rio Grande Valley), M. Vallisneri(California Institute of Technology), N. van Bakel(National Institute for Subatomic Physics), M. van Beuzekom(National Institute for Subatomic Physics), J. F. J. van den Brand(National Institute for Subatomic Physics), C. Van Den Broeck(National Institute for Subatomic Physics), D. C. Vander‐Hyde(National Institute for Subatomic Physics), L. van der Schaaf(National Institute for Subatomic Physics), J. V. van Heijningen(National Institute for Subatomic Physics), A. A. van Veggel(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), M. Vardaro(California Institute of Technology), S. Vass(California Institute of Technology), M. Vasúth(HUN-REN Wigner Research Centre for Physics), R. Vaulin(Massachusetts Institute of Technology), A. Vecchio(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), G. Vedovato(University of Birmingham), J. Veitch(The University of Adelaide), J. Veitch(University of Washington), K. Venkateswara(University of Washington), D. Verkindt(University of Urbino), F. Vetrano(University of Urbino), A. Viceré(University of Urbino), S. Vinciguerra(University of Birmingham), D. J. Vine(Université Côte d'Azur), J.-Y. Vinet(Université Côte d'Azur), S. Vitale(Massachusetts Institute of Technology), T. Vo(Istituto Nazionale di Fisica Nucleare, Sezione di Perugia), H. Vocca(University of Perugia), C. Vorvick(University of Florida), D. V. Voss(University of Florida), W. D. Vousden(Lomonosov Moscow State University), S. P. Vyatchanin(Australian National University), A. R. Wade(Australian National University), L. E. Wade(Kenyon College), M. Wade(Louisiana State University), M. Walker(Louisiana State University), L. Wallace(California Institute of Technology), S. Walsh(Max Planck Institute for Gravitational Physics), G. Wang(Gran Sasso Science Institute), H. Wang(University of Birmingham), M. Wang(University of Birmingham), X. Wang(The University of Western Australia), Y. Wang(Australian National University), R. L. Ward(Australian National University), J. Warner(Laboratoire d’Annecy de Physique des Particules), M. Wąs(Laboratoire d’Annecy de Physique des Particules), B. Weaver(Université Côte d'Azur), L.-W. Wei(Université Côte d'Azur), M. Weinert(California Institute of Technology), A. J. Weinstein(California Institute of Technology), R. Weiss(The University of Western Australia), L. Wen(The University of Western Australia), P. Weßels(Max Planck Institute for Gravitational Physics), T. Westphal(Max Planck Institute for Gravitational Physics), K. Wette(Rochester Institute of Technology), J. T. Whelan(Rochester Institute of Technology), B. F. Whiting(California Institute of Technology), R. D. Williams(California Institute of Technology), A. R. Williamson(Abilene Christian University), J. L. Willis(Leibniz University Hannover), B. Willke(Leibniz University Hannover), M. H. Wimmer(Leibniz University Hannover), W. Winkler(California Institute of Technology), C. C. Wipf(Leibniz University Hannover), H. Wittel(Leibniz University Hannover), G. Woan(Max Planck Institute for Gravitational Physics), J. Woehler(Max Planck Institute for Gravitational Physics), J. Worden(University of Glasgow), J. L. Wright(Max Planck Institute for Gravitational Physics), D. S. Wu(LIGO Scientific Collaboration), Guanglei Wu(Northwestern University), J. Yablon(Massachusetts Institute of Technology), W. Yam(California Institute of Technology), H. Yamamoto(California Institute of Technology), C. C. Yancey(Massachusetts Institute of Technology), Haiyang Yu(Laboratoire d’Annecy de Physique des Particules), M. Yvert(Laboratoire d’Annecy de Physique des Particules), A. Zadrożny(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), L. Zangrando(Embry–Riddle Aeronautical University), M. Zanolin(Istituto Nazionale di Fisica Nucleare, Sezione di Padova), J.‐P. Zendri(Northwestern University), M. Zevin(California Institute of Technology), L. Zhang(California Institute of Technology), M. Zhang(Rochester Institute of Technology), Y. Zhang(Rochester Institute of Technology), C. Zhao(Northwestern University), M. Zhou(Northwestern University), Z. Zhou(The University of Western Australia), X. J. Zhu(California Institute of Technology), M. E. Zucker(California Institute of Technology), S. E. Zuraw(California Institute of Technology), J. Zweizig(California Institute of Technology), Michael Boyle(California Institute of Technology), Daniel A. Hemberger(Cornell University), Larry Kidder(California State University, Fullerton), Geoffrey Lovelace(California State University, Fullerton), S. Ossokine(California Institute of Technology), M. Scheel(California Institute of Technology), Béla Szilágyi(California Institute of Technology), Saul A. Teukolsky(Cornell University)
Physical Review Letters
June 15, 2016
10.1103/physrevlett.116.241103
Cited by 3,483Open Access
Full Text

Abstract

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 significance greater than 5σ. The signal persisted in the LIGO frequency band for approximately 1 s, increasing in frequency and amplitude over about 55 cycles from 35 to 450 Hz, and reached a peak gravitational strain of 3.4_{-0.9}^{+0.7}×10^{-22}. The inferred source-frame initial black hole masses are 14.2_{-3.7}^{+8.3}M_{⊙} and 7.5_{-2.3}^{+2.3}M_{⊙}, and the final black hole mass is 20.8_{-1.7}^{+6.1}M_{⊙}. We find that at least one of the component black holes has spin greater than 0.2. This source is located at a luminosity distance of 440_{-190}^{+180} Mpc corresponding to a redshift of 0.09_{-0.04}^{+0.03}. All uncertainties define a 90% credible interval. This second gravitational-wave observation provides improved constraints on stellar populations and on deviations from general relativity.

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