GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run

R Abbott , T.D Abbott , F Acernese , K Ackley , C Adams , N Adhikari , R.X Adhikari , V.B Adya , C Affeldt , D Agarwal , M Agathos , K Agatsuma , N Aggarwal , O.D Aguiar , L Aiello , A Ain , P Ajith , S Albanesi , A Allocca , P.A Altin , A Amato (1) , C Anand , S Anand , A Ananyeva , S.B Anderson , W.G Anderson , T Andrade , N Andres (2) , T Andrić , S.V Angelova , S Ansoldi , J.M Antelis , S Antier (3) , S Appert , K Arai , M.C Araya , J.S Areeda , M Arène (3) , N Arnaud (4) , S.M Aronson , K.G Arun , Y Asali , G Ashton , M Assiduo , S.M Aston , P Astone , F Aubin (2) , C Austin , S Babak (3) , F Badaracco , M.K.M Bader , C Badger , S Bae , A.M Baer , S Bagnasco , Y Bai , J Baird (3) , M Ball , G Ballardin , S.W Ballmer , A Balsamo , G Baltus , S Banagiri , D Bankar , J.C Barayoga , C Barbieri , B.C Barish , D Barker , P Barneo , F Barone , B Barr , L Barsotti , M Barsuglia (3) , D Barta , J Bartlett , M.A Barton , I Bartos , R Bassiri , A Basti , M Bawaj , J.C Bayley , A.C Baylor , M Bazzan , B Bécsy , V.M Bedakihale , M Bejger , I Belahcene (4) , V Benedetto , D Beniwal , T.F Bennett , J.D Bentley , M Benyaala , F Bergamin , B.K Berger , S Bernuzzi , C.P.L Berry , D Bersanetti , A Bertolini , J Betzwieser , D Beveridge , R Bhandare , U Bhardwaj , D Bhattacharjee , S Bhaumik , I.A Bilenko , G Billingsley , S Bini , R Birney , O Birnholtz , S Biscans , M Bischi , S Biscoveanu , A Bisht , B Biswas , M Bitossi , M.-A Bizouard (5) , J.K Blackburn , C.D Blair , D.G Blair , R.M Blair , F Bobba , N Bode , M Boer (5) , G Bogaert (5) , M Boldrini , L.D Bonavena , F Bondu (6) , E Bonilla , R Bonnand (2) , P Booker , B.A Boom , R Bork , V Boschi , N Bose , S Bose , V Bossilkov , V Boudart , Y Bouffanais , A Bozzi , C Bradaschia , P.R Brady , A Bramley , A Branch , M Branchesi , J.E Brau , M Breschi , T Briant (7) , J.H Briggs , A Brillet (5) , M Brinkmann , P Brockill , A.F Brooks , J Brooks , D.D Brown , S Brunett , G Bruno , R Bruntz , J Bryant , T Bulik , H.J Bulten , A Buonanno , R Buscicchio , D Buskulic (2) , C Buy (8) , R.L Byer , L Cadonati , G Cagnoli (1) , C Cahillane , J Calderón Bustillo , J.D Callaghan , T.A Callister , E Calloni , J Cameron , J.B Camp , M Canepa , S Canevarolo , M Cannavacciuolo , K.C Cannon , H Cao , E Capote , G Carapella , F Carbognani , J.B Carlin , M.F Carney , M Carpinelli , G Carrillo , G Carullo , T.L Carver , J. Casanueva Diaz , C Casentini , G Castaldi , S Caudill , M Cavaglià , F Cavalier (4) , R Cavalieri , M Ceasar , G Cella , P Cerdá-Durán , E Cesarini , W Chaibi (5) , K Chakravarti , S. Chalathadka Subrahmanya , E Champion , C.-H Chan , C Chan , C.L Chan , K Chan , K Chandra , P Chanial , S Chao , P Charlton , E.A Chase , E Chassande-Mottin (3) , C Chatterjee , Debarati Chatterjee , Deep Chatterjee , D Chattopadhyay , M Chaturvedi , S Chaty (3) , K Chatziioannou , H.Y Chen , J Chen , X Chen , Y Chen , Z Chen , H Cheng , C.K Cheong , H.Y Cheung , H.Y Chia , F Chiadini , G Chiarini , R Chierici (9) , A Chincarini , M.L Chiofalo , A Chiummo , G Cho , H.S Cho , R.K Choudhary , S Choudhary , N Christensen (5) , Q Chu , S Chua , K.W Chung , G Ciani , P Ciecielag , M Cieślar , M Cifaldi , A.A Ciobanu , R Ciolfi , F Cipriano (5) , A Cirone , F Clara , E.N Clark , J.A Clark , L Clarke , P Clearwater , S Clesse , F Cleva (5) , E Coccia , E Codazzo , P.-F Cohadon (7) , D.E Cohen (4) , L Cohen , M Colleoni , C.G Collette , A Colombo , M Colpi , C.M Compton , M Constancio , L Conti , S.J Cooper , P Corban , T.R Corbitt , I Cordero-Carrión , S Corezzi , K.R Corley , N Cornish , D Corre (4) , A Corsi , S Cortese , C.A Costa , R Cotesta , M.W Coughlin , J.-P Coulon (5) , S.T Countryman , B Cousins , P Couvares , D.M Coward , M.J Cowart , D.C Coyne , R Coyne , J.D.E Creighton , T.D Creighton , A.W Criswell , M Croquette (7) , S.G Crowder , J.R Cudell , T.J Cullen , A Cumming , R Cummings , L Cunningham , E Cuoco , M Curyło , P Dabadie (1) , T Dal Canton (4) , S Dall'Osso , G Dálya , A Dana , L.M Daneshgaranbajastani , B d'Angelo , B Danila , S Danilishin , S d'Antonio , K Danzmann , C Darsow-Fromm , A Dasgupta , L.E.H Datrier , S Datta , V Dattilo , I Dave , M Davier (4) , G.S Davies , D Davis , M.C Davis , E.J Daw , R Dean , D Debra , M Deenadayalan , J Degallaix (9) , M de Laurentis , S Deléglise (7) , V del Favero , F de Lillo , N de Lillo , W del Pozzo , L.M Demarchi , F de Matteis , V d'Emilio , N Demos , T Dent , A Depasse , R de Pietri , R de Rosa , C de Rossi , R Desalvo , R de Simone , S Dhurandhar , M.C Díaz , M Diaz-Ortiz , N.A Didio , T Dietrich , L Di Fiore , C Di Fronzo , C Di Giorgio , F Di Giovanni , M Di Giovanni , T Di Girolamo , A Di Lieto , B Ding , S Di Pace , I Di Palma , F Di Renzo , A.K Divakarla , M Divyajyoti , A Dmitriev , Z Doctor , L d'Onofrio , F Donovan , K.L Dooley , S Doravari , I Dorrington , M Drago , J.C Driggers , Y Drori , J.-G Ducoin (4) , P Dupej , O Durante , D d'Urso , P.-A Duverne (4) , S.E Dwyer , C Eassa , P.J Easter , M Ebersold , T Eckhardt , G Eddolls , B Edelman , T.B Edo , O Edy , A Effler , J Eichholz , S.S Eikenberry , M Eisenmann (2) , R.A Eisenstein , A Ejlli , E Engelby , L Errico , R.C Essick , H Estellés , D Estevez (10) , Z Etienne , T Etzel , M Evans , T.M Evans , B.E Ewing , V Fafone , H Fair , S Fairhurst , S.P Fanning , A.M Farah , S Farinon , B Farr , W.M Farr , N.W Farrow , E.J Fauchon-Jones , G Favaro , M Favata , M Fays , M Fazio , J Feicht , M.M Fejer , E Fenyvesi , D.L Ferguson , A Fernandez-Galiana , I Ferrante , T.A Ferreira , F Fidecaro , P Figura , I Fiori , M Fishbach , R.P Fisher , R Fittipaldi , V Fiumara , R Flaminio (2) , E Floden , H Fong , J.A Font , B Fornal , P.W.F Forsyth , A Franke , S Frasca , F Frasconi , C Frederick , J.P Freed , Z Frei , A Freise , R Frey , P Fritschel , V.V Frolov , G.G Fronzé , P Fulda , M Fyffe , H.A Gabbard , W Gabella , B.U Gadre , J.R Gair , J Gais , S Galaudage , R Gamba , D Ganapathy , A Ganguly , S.G Gaonkar , B Garaventa , F García (3) , C García-Núñez , C García-Quirós , F Garufi , B Gateley , S Gaudio , V Gayathri , G Gemme , A Gennai , J George , R.N George , O Gerberding , L Gergely , P Gewecke , S Ghonge , Abhirup Ghosh , Archisman Ghosh , Shaon Ghosh , Shrobana Ghosh , B Giacomazzo , L Giacoppo , J.A Giaime , K.D Giardina , D.R Gibson , C Gier , M Giesler , P Giri , F Gissi , J Glanzer , A.E Gleckl , P Godwin , E Goetz , R Goetz , N Gohlke , B Goncharov , G González , A Gopakumar , M Gosselin , R Gouaty (2) , D.W Gould , B Grace , A Grado , M Granata (9) , V Granata , A Grant , S Gras , P Grassia , C Gray , R Gray , G Greco , A.C Green , R Green , A.M Gretarsson , E.M Gretarsson , D Griffith , W Griffiths , H.L Griggs , G Grignani , A Grimaldi , S.J Grimm , H Grote , S Grunewald , P Gruning (4) , D Guerra , G.M Guidi , A.R Guimaraes , G Guixé , H.K Gulati , H.-K Guo , Y Guo , Anchal Gupta , Anuradha Gupta , P Gupta , E.K Gustafson , R Gustafson , F Guzman , L Haegel (3) , O Halim , E.D Hall , E.Z Hamilton , G Hammond , M Haney , J Hanks , C Hanna , M.D Hannam , O Hannuksela , H Hansen , T.J Hansen , J Hanson , T Harder (5) , T Hardwick , K Haris , J Harms , G.M Harry , I.W Harry , D Hartwig , B Haskell , R.K Hasskew , C.-J Haster , K Haughian , F.J Hayes , J Healy , A Heidmann (7) , A Heidt , M.C Heintze , J Heinze , J Heinzel , H Heitmann (5) , F Hellman , P Hello (4) , A.F Helmling-Cornell , G Hemming , M Hendry , I.S Heng , E Hennes , J Hennig , M.H Hennig , A.G Hernandez , F. Hernandez Vivanco , M Heurs , S Hild , P Hill , A.S Hines , S Hochheim , D Hofman (9) , J.N Hohmann , D.G Holcomb , N.A Holland , K Holley-Bockelmann , I.J Hollows , Z.J Holmes , K Holt , D.E Holz , P Hopkins , J Hough , S Hourihane , E.J Howell , C.G Hoy , D Hoyland , A Hreibi , Y Hsu , Y Huang , M.T Hübner , A.D Huddart , B Hughey , V Hui (2) , S Husa , S.H Huttner , R Huxford , T Huynh-Dinh , B Idzkowski , A Iess , C Ingram , M Isi , K Isleif , B.R Iyer , V Jaberianhamedan , T Jacqmin (7) , S.J Jadhav , S.P Jadhav , A.L James , A.Z Jan , K Jani , J Janquart , K Janssens (5) , N.N Janthalur , P Jaranowski , D Jariwala , R Jaume , A.C Jenkins , K Jenner , M Jeunon , W Jia , G.R Johns , N.K Johnson-Mcdaniel , A.W Jones , D.I Jones , J.D Jones , P Jones , R Jones , R.J.G Jonker , L Ju , J Junker , V Juste (10) , C.V Kalaghatgi , V Kalogera , B Kamai , S Kandhasamy , G Kang , J.B Kanner , Y Kao , S.J Kapadia , D.P Kapasi , S Karat , C Karathanasis , S Karki , R Kashyap , M Kasprzack , W Kastaun , S Katsanevas , E Katsavounidis , W Katzman , T Kaur , K Kawabe , F Kéfélian (5) , D Keitel , J.S Key , S Khadka , F.Y Khalili , S Khan , E.A Khazanov , N Khetan , M Khursheed , N Kijbunchoo , C Kim , J.C Kim , K Kim , W.S Kim , Y.-M Kim , C Kimball , M Kinley-Hanlon , R Kirchhoff , J.S Kissel , L Kleybolte , S Klimenko , A.M Knee , T.D Knowles , E Knyazev , P Koch , G Koekoek , S Koley , P Kolitsidou , M Kolstein , K Komori , V Kondrashov , A Kontos , N Koper , M Korobko , M Kovalam , D.B Kozak , V Kringel , N.V Krishnendu , A Królak , G Kuehn , F Kuei , P Kuijer , S Kulkarni , A Kumar , P Kumar , Rahul Kumar , Rakesh Kumar , K Kuns , S Kuwahara , P Lagabbe (2) , D Laghi , E Lalande , T.L Lam , A Lamberts (11, 5) , M Landry , B.B Lane , R.N Lang , J Lange , B Lantz , I La Rosa (2) , A Lartaux-Vollard (4) , P.D Lasky , M Laxen , A Lazzarini , C Lazzaro , P Leaci , S Leavey , Y.K Lecoeuche , H.M Lee , H.W Lee , J Lee , K Lee , J Lehmann , A Lemaître (12) , N Leroy (4) , N Letendre (2) , C Levesque , Y Levin , J.N Leviton , K Leyde (3) , A.K.Y Li , B Li , J Li , T.G.F Li , X Li , F Linde , S.D Linker , J.N Linley , T.B Littenberg , J Liu , K Liu , X Liu , F Llamas , M Llorens-Monteagudo , R.K.L Lo , A Lockwood , L.T London , A Longo , D Lopez , M. Lopez Portilla , M Lorenzini , V Loriette (13) , M Lormand , G Losurdo , T.P Lott , J.D Lough , C.O Lousto , G Lovelace , J.F Lucaccioni , H Lück , D Lumaca , A.P Lundgren , J.E Lynam , R Macas , M Macinnis , D.M Macleod , I.A.O Macmillan , A Macquet (5) , I. Magaña Hernandez , C Magazzù , R.M Magee , R Maggiore , M Magnozzi , S Mahesh , E Majorana , C Makarem , I Maksimovic (13) , S Maliakal , A Malik , N Man (5) , V Mandic , V Mangano , J.L Mango , G.L Mansell , M Manske , M Mantovani , M Mapelli , F Marchesoni , F Marion (2) , Z Mark , S Márka , Z Márka , C Markakis , A.S Markosyan , A Markowitz , E Maros , A Marquina , S Marsat (3) , F Martelli , I.W Martin , R.M Martin , M Martinez , V.A Martinez , V Martinez (1) , K Martinovic , D.V Martynov , E.J Marx , H Masalehdan , K Mason , E Massera , A Masserot (2) , T.J Massinger , M Masso-Reid , S Mastrogiovanni (3) , A Matas , M Mateu-Lucena , F Matichard , M Matiushechkina , N Mavalvala , J.J Mccann , R Mccarthy , D.E Mcclelland , P.K Mcclincy , S Mccormick , L Mcculler , G.I Mcghee , S.C Mcguire , C Mcisaac , J Mciver , T Mcrae , S.T Mcwilliams , D Meacher , M Mehmet , A.K Mehta , Q Meijer , A Melatos , D.A Melchor , G Mendell , A Menendez-Vazquez , C.S Menoni , R.A Mercer , L Mereni (9) , K Merfeld , E.L Merilh , J.D Merritt , M Merzougui (5) , S Meshkov , C Messenger , C Messick , P.M Meyers , F Meylahn , A Mhaske , A Miani , H Miao , I Michaloliakos , C Michel (9) , H Middleton , L Milano , A Miller , A.L Miller , B Miller , M Millhouse , J.C Mills , E Milotti , O Minazzoli (14, 5) , Y Minenkov , Ll.M Mir , M Miravet-Tenés , C Mishra , T Mishra , T Mistry , S Mitra , V.P Mitrofanov , G Mitselmakher , R Mittleman , Geoffrey Mo , E Moguel , K Mogushi , S.R.P Mohapatra , S.R Mohite , I Molina , M Molina-Ruiz , M Mondin , M Montani , C.J Moore , D Moraru , F Morawski , A More , C Moreno , G Moreno , S Morisaki , B Mours (10) , C.M Mow-Lowry , S Mozzon , F Muciaccia , Arunava Mukherjee , D Mukherjee , Soma Mukherjee , Subroto Mukherjee , Suvodip Mukherjee , N Mukund , A Mullavey , J Munch , E.A Muñiz , P.G Murray , R Musenich , S Muusse , S.L Nadji , A Nagar (15) , V Napolano , I Nardecchia , L Naticchioni , B Nayak , R.K Nayak , B.F Neil , J Neilson , G Nelemans , T.J.N Nelson , M Nery , P Neubauer , A Neunzert , K.Y Ng , S.W.S Ng , C Nguyen (3) , P Nguyen , T Nguyen , S.A Nichols , S Nissanke , E Nitoglia (9) , F Nocera , M Norman , C North , L.K Nuttall , J Oberling , B.D O'Brien , J O'Dell , E Oelker , G Oganesyan , J.J Oh , S.H Oh , F Ohme , H Ohta , M.A Okada , C Olivetto , R Oram , B O'Reilly , R.G Ormiston , N.D Ormsby , L.F Ortega , R O'Shaughnessy , E O'Shea , S Ossokine , C Osthelder , D.J Ottaway , H Overmier , A.E Pace , G Pagano , M.A Page , G Pagliaroli , A Pai , S.A Pai , J.R Palamos , O Palashov , C Palomba , H Pan , P.K Panda , P.T.H Pang , C Pankow , F Pannarale , B.C Pant , F.H Panther , F Paoletti , A Paoli , A Paolone , H Park , W Parker , D Pascucci , A Pasqualetti , R Passaquieti , D Passuello , M Patel , M Pathak , B Patricelli , A.S Patron , S Patrone , S Paul , E Payne , M Pedraza , M Pegoraro , A Pele , S Penn , A Perego , A Pereira (1) , T Pereira , C.J Perez , C Périgois (2) , C.C Perkins , A Perreca , S Perriès (9) , J Petermann , D Petterson , H.P Pfeiffer , K.A Pham , K.S Phukon , O.J Piccinni , M Pichot (5) , M Piendibene , F Piergiovanni , L Pierini , V Pierro , G Pillant , M Pillas (4) , F Pilo , L Pinard (9) , I.M Pinto , M Pinto , K Piotrzkowski , M Pirello , M.D Pitkin , E Placidi , L Planas , W Plastino , C Pluchar , R Poggiani , E Polini (2) , D.Y.T Pong , S Ponrathnam , P Popolizio , E.K Porter (3) , R Poulton , J Powell , M Pracchia (2) , T Pradier (10) , A.K Prajapati , K Prasai , R Prasanna , G Pratten , M Principe , G.A Prodi , L Prokhorov , P Prosposito , L Prudenzi , A Puecher , M Punturo , F Puosi , P Puppo , M Pürrer , H Qi , V Quetschke , R Quitzow-James , F.J Raab , G Raaijmakers , H Radkins , N Radulesco (5) , P Raffai , S.X Rail , S Raja , C Rajan , K.E Ramirez , T.D Ramirez , A Ramos-Buades , J Rana , P Rapagnani , U.D Rapol , A Ray , V Raymond , N Raza , M Razzano , J Read , L.A Rees , T Regimbau (2) , L Rei , S Reid , S.W Reid , D.H Reitze , P Relton , A Renzini , P Rettegno , A Reza , M Rezac , F Ricci , D Richards , J.W Richardson , L Richardson , G Riemenschneider , K Riles , S Rinaldi , K Rink , M Rizzo , N.A Robertson , R Robie , F Robinet (4) , A Rocchi , S Rodriguez , L Rolland (2) , J.G Rollins , M Romanelli (6) , R Romano , C.L Romel , A Romero-Rodríguez , I.M Romero-Shaw , J.H Romie , S Ronchini , L Rosa , C.A Rose , M.J.B Rosell , D Rosińska , M.P Ross , S Rowan , S.J Rowlinson , S Roy , Santosh Roy , Soumen Roy , D Rozza , P Ruggi , K Ruiz-Rocha , K Ryan , S Sachdev , T Sadecki , J Sadiq , M Sakellariadou , O.S Salafia , L Salconi , M Saleem , F Salemi , A Samajdar , E.J Sanchez , J.H Sanchez , L.E Sanchez , N Sanchis-Gual , J.R Sanders , A Sanuy , T.R Saravanan , N Sarin , B Sassolas (9) , H Satari , O Sauter , R.L Savage , D Sawant , H.L Sawant , S Sayah (9) , D Schaetzl , M Scheel , J Scheuer , M Schiworski , P Schmidt , S Schmidt , R Schnabel , M Schneewind , R.M.S Schofield , A Schönbeck , B.W Schulte , B.F Schutz , E Schwartz , J Scott , S.M Scott , M Seglar-Arroyo (2) , D Sellers , A.S Sengupta , D Sentenac , E.G Seo , V Sequino , A Sergeev , Y Setyawati , T Shaffer , M.S Shahriar , B Shams , A Sharma , P Sharma , P Shawhan , N.S Shcheblanov (12) , M Shikauchi , D.H Shoemaker , D.M Shoemaker , S Shyamsundar , M Sieniawska , D Sigg , L.P Singer , D Singh , N Singh , A Singha , A.M Sintes , V Sipala , V Skliris , B.J.J Slagmolen , T.J Slaven-Blair , J Smetana , J.R Smith , R.J.E Smith , J Soldateschi , S.N Somala , E.J Son , K Soni , S Soni , V Sordini (9) , F Sorrentino , N Sorrentino , R Soulard (5) , T Souradeep , E Sowell , V Spagnuolo , A.P Spencer , M Spera , R Srinivasan (5) , A.K Srivastava , V Srivastava , K Staats , C Stachie (5) , D.A Steer (3) , J Steinhoff , J Steinlechner , S Steinlechner , S Stevenson , D.J Stops , M Stover , K.A Strain , L.C Strang , G Stratta , A Strunk , R Sturani , A.L Stuver , S Sudhagar , V Sudhir , H.G Suh , T.Z Summerscales , H Sun , L Sun , S Sunil , A Sur , J Suresh , P.J Sutton , B.L Swinkels , M.J Szczepańczyk , P Szewczyk , M Tacca , S.C Tait , C.J Talbot , C Talbot , A.J Tanasijczuk , D.B Tanner , D Tao , L Tao , E.N Tapia San Martín , C Taranto , J.D Tasson , R Tenorio , J.E Terhune , L Terkowski , M.P Thirugnanasambandam , L Thomas , M Thomas , P Thomas , J.E Thompson , S.R Thondapu , K.A Thorne , E Thrane , Shubhanshu Tiwari , Srishti Tiwari , V Tiwari , A.M Toivonen , K Toland , A.E Tolley , M Tonelli , A Torres-Forné , C.I Torrie , I. Tosta E Melo , D Töyrä , A Trapananti , F Travasso , G Traylor , M Trevor , M.C Tringali , A Tripathee , L Troiano , A Trovato (3) , L Trozzo , R.J Trudeau , D.S Tsai , D Tsai , K.W Tsang , M Tse , R Tso , L Tsukada , D Tsuna , T Tsutsui , K Turbang , M Turconi (5) , A.S Ubhi , R.P Udall , K Ueno , C.S Unnikrishnan , A.L Urban , A Utina , H Vahlbruch , G Vajente , A Vajpeyi , G Valdes , M Valentini , V Valsan , N van Bakel , M van Beuzekom , J.F.J van den Brand , C van den Broeck , D.C Vander-Hyde , L van der Schaaf , J.V van Heijningen , J Vanosky , N van Remortel , M Vardaro , A.F Vargas , V Varma , M Vasúth , A Vecchio , G Vedovato , J Veitch , P.J Veitch , J Venneberg , G Venugopalan , D Verkindt (2) , P Verma , Y Verma , D Veske , F Vetrano , A Viceré , S Vidyant , A.D Viets , A Vijaykumar , V Villa-Ortega , J.-Y Vinet (5) , A Virtuoso , S Vitale , T Vo , H Vocca , E.R.G von Reis , J.S.A von Wrangel , C Vorvick , S.P Vyatchanin , L.E Wade , M Wade , K.J Wagner , R.C Walet , M Walker , G.S Wallace , L Wallace , S Walsh , J.Z Wang , W.H Wang , R.L Ward , J Warner , M Was (2) , N.Y Washington , J Watchi , B Weaver , S.A Webster , M Weinert , A.J Weinstein , R Weiss , C.M Weller , R Weller , F Wellmann , L Wen , P Weßels , K Wette , J.T Whelan , D.D White , B.F Whiting , C Whittle , D Wilken , D Williams , M.J Williams , A.R Williamson , J.L Willis , B Willke , D.J Wilson , W Winkler , C.C Wipf , T Wlodarczyk , G Woan , J Woehler , J.K Wofford , I.C.F Wong , D.S Wu , D.M Wysocki , L Xiao , H Yamamoto , F.W Yang , L Yang , Yang Yang , Z Yang , M.J Yap , D.W Yeeles , A.B Yelikar , M Ying , J Yoo , Hang Yu , Haocun Yu , A Zadrożny , M Zanolin , T Zelenova , J.-P Zendri , M Zevin , J Zhang , L Zhang , T Zhang , Y Zhang , C Zhao , G Zhao , Yue Zhao , R Zhou , Z Zhou , X.J Zhu , A.B Zimmerman , Y Zlochower , M.E Zucker , J Zweizig

1 ILM - Institut Lumière Matière [Villeurbanne]
2 LAPP - Laboratoire d'Annecy de Physique des Particules
3 APC (UMR_7164) - AstroParticule et Cosmologie
4 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
5 ARTEMIS - Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux
6 FOTON - Institut des Fonctions Optiques pour les Technologies de l'informatiON
7 LKB [Collège de France] - Laboratoire Kastler Brossel
8 L2IT - Laboratoire des deux Infinis de Toulouse
9 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
10 IPHC - Institut Pluridisciplinaire Hubert Curien
11 LAGRANGE - Joseph Louis LAGRANGE
12 UPEM - Université Paris-Est Marne-la-Vallée
13 ESPCI Paris - Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris
14 OCA - Observatoire de la Côte d'Azur
15 IHES - Institut des Hautes Études Scientifiques

The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 $15:00$ UTC and 1 October 2019 $15:00$ UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a probability of astrophysical origin greater than 0.5. Of these candidates, 36 have been reported in GWTC-2. We also calculate updated source properties for all binary black hole events previously reported in GWTC-1. If the eight additional high-significance candidates presented here are astrophysical, the mass range of events that are unambiguously identified as binary black holes (both objects $\ge 3M_{\odot }$) is increased compared to GWTC-2, with total masses from $\sim 14M_{\odot }$ for GW190924_021846 to $\sim 182M_{\odot }$ for GW190426_190642. Source properties calculated using our default prior suggest that the primary components of two new candidate events (GW190403_051519 and GW190426_190642) fall in the mass gap predicted by pair-instability supernova theory. We also expand the population of binaries with significantly asymmetric mass ratios reported in GWTC-2 by an additional two events (the mass ratio is less than 0.65 and 0.44 at 90% probability for GW190403_051519 and GW190917_114630 respectively), and find that two of the eight new events have effective inspiral spins ${\chi }_{\mathrm{eff}}>0$ (at 90% credibility), while no binary is consistent with ${\chi }_{\mathrm{eff}}<0$ at the same significance. We provide updated estimates for rates of binary black hole and binary neutron star coalescence in the local Universe.

Mots clés: 04.80.Nn; 04.25.dg; 95.85.Sz; 97.80.-d; 04.30.Db; 04.30.Tv; binary: compact; binary: coalescence; black hole: binary; LIGO; VIRGO; supernova; binary: mass ratio; binary: spin; data analysis method; binary: mass; gravitational radiation: direct detection

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]

R Abbott, T.D Abbott, F Acernese, K Ackley, C Adams, et al.. GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run. Physical Review D, 2024, 109 (2), pp.022001. ⟨10.1103/PhysRevD.109.022001⟩. ⟨hal-04382662⟩