GW170817: Measurements of Neutron Star Radii and Equation of State

Abbott,; and Abbott, B. P.; and Abbott, R.; and Acernese, T. D.; and Ackley, F.; and Adams, K.; and Adams, C.; and Addesso, T.; and Adhikari, P.; and Adya, R. X.; and Affeldt, V. B.; and Agarwal, C.; and Agathos, B.; and Agatsuma, M.; and Aggarwal, K.; and Aguiar, N.; and Aiello, O. D.; and Ain, L.; and Ajith, A.; and Allen, P.; and Allen, B.; and Allocca, G.; and Aloy, A.; and Altin, M. A.; and Amato, P. A.; and Ananyeva, A.; and Anderson, A.; and Anderson, S. B.; and Angelova, W. G.; and Antier, S. V.; and Appert, S.; and Arai, S.; and Araya, K.; and Areeda, M. C.; and Arene, J. S.; and Arnaud, M.; and Arun, N.; and Ascenzi, K. G.; and Ashton, S.; and Ast, G.; and Aston, M.; and Astone, S. M.; and Atallah, P.; and Aubin, D. V.; and Aufmuth, F.; and Aulbert, P.; and AultONeal, C.; and Austin, K.; and Avila-Alvarez, C.; and Babak, A.; and Bacon, S.; and Badaracco, P.; and Bader, F.; and Bae, M. K. M.; and Baker, S.; and Baldaccini, P. T.; and Ballardin, F.; and Ballmer, G.; and Banagiri, S. W.; and Barayoga, S.; and Barclay, J. C.; and Barish, S. E.; and Barker, B. C.; and Barkett, D.; and Barnum, K.; and Barone, S.; and Barr, F.; and Barsotti, B.; and Barsuglia, L.; and Barta, M.; and Bartlett, D.; and Bartos, J.; and Bassiri, I.; and Basti, R.; and Batch, A.; and Bawaj, J. C.; and Bayley, M.; and Bazzan, J. C.; and Becsy, M.; and Beer, B.; and Bejger, C.; and Belahcene, M.; and Bell, I.; and Beniwal, A. S.; and Bensch, D.; and Berger, M.; and Bergmann, B. K.; and Bernuzzi, G.; and Bero, S.; and Berry, J. J.; and Bersanetti, C. P. L.; and Bertolini, D.; and Betzwieser, A.; and Bhandare, J.; and Bilenko, R.; and Bilgili, I. A.; and Billingsley, S. A.; and Billman, G.; and Birch, C. R.; and Birney, J.; and Birnholtz, R.; and Biscans, O.; and Biscoveanu, S.; and Bisht, S.; and Bitossi, A.; and Bizouard, M.; and Blackburn, M. A.; and Blackman, J. K.; and Blair, J.; and Blair, C. D.; and Blair, D. G.; and Bloemen, R. M.; and Bock, S.; and Bode, O.; and Boer, N.; and Boetzel, M.; and Bogaert, Y.; and Bohe, G.; and Bondu, A.; and Bonilla, F.; and Bonnand, E.; and Booker, R.; and Boom, P.; and Booth, B. A.; and Bork, C. D.; and Boschi, R.; and Bose, V.; and Bossie, S.; and Bossilkov, K.; and Bosveld, V.; and Bouffanais, J.; and Bozzi, Y.; and Bradaschia, A.; and Brady, C.; and Bramley, P. R.; and Branchesi, A.; and Brau, M.; and Briant, J. E.; and Brighenti, T.; and Brillet, F.; and Brinkmann, A.; and Brisson, M.; and Brockill, V.; and Brooks, P.; and Brown, A. F.; and Brunett, D. D.; and Buchanan, S.; and Buikema, C. C.; and Bulik, A.; and Bulten, T.; and Buonanno, H. J.; and Buskulic, A.; and Buy, D.; and Byer, C.; and Cabero, R. L.; and Cadonati, M.; and Cagnoli, L.; and Cahillane, G.; and Bustillo, C.; Calderon and Callister, J.; and Calloni, T. A.; and Camp, E.; and Canepa, J. B.; and Canizares, M.; and Cannon, P.; and Cao, K. C.; and Cao, H.; and Capano, J.; and Capocasa, C. D.; and Carbognani, E.; and Caride, F.; and Carney, S.; and Carullo, M. F.; and Diaz, G.; Casanueva and Casentini, J.; and Caudill, C.; and Cavaglia, S.; and Cavalier, M.; and Cavalieri, F.; and Cella, R.; and Cepeda, G.; and Cerda-Duran, C. B.; and Cerretani, P.; and Cesarini, G.; and Chaibi, E.; and Chamberlin, O.; and Chan, S. J.; and Chao, M.; and Charlton, S.; and Chase, P.; and Chassande-Mottin, E.; and Chatterjee, E.; and Chatziioannou, D.; and Cheeseboro, K.; and Chen, B. D.; and Chen, H. Y.; and Chen, X.; and Cheng, Y.; and Chia, H. -P.; and Chincarini, H. Y.; and Chiummo, A.; and Chmiel, A.; and Cho, T.; and Cho, H. S.; and Chow, M.; and Christensen, J. H.; and Chu, N.; and Chua, Q.; and Chua, A. J. K.; and Chung, S.; and Chung, K. W.; and Ciani, S.; and Ciobanu, G.; and Ciolfi, A. A.; and Cipriano, R.; and Cirelli, F.; and Cirone, C. E.; and Clara, A.; and Clark, F.; and Clearwater, J. A.; and Cleva, P.; and Cocchieri, F.; and Coccia, C.; and Cohadon, E.; and Cohen, P. -F.; and Colla, D.; and Collette, A.; and Collins, C. G.; and Cominsky, C.; and Constancio, L. R.; J, R.; and Conti, M.; and Cooper, L.; and Corban, S. J.; and Corbitt, P.; and Cordero-Carrion, T. R.; and Corley, I.; and Cornish, K. R.; and Corsi, N.; and Cortese, A.; and Costa, S.; and Cotesta, C. A.; and Coughlin, R.; and Coughlin, M. W.; and Coulon, S. B.; and Countryman, J. -P.; and Couvares, S. T.; and Covas, P.; and Cowan, P. B.; and Coward, E. E.; and Cowart, D. M.; and Coyne, M. J.; and Coyne, D. C.; and Creighton, R.; and Creighton, J. D. E.; and Cripe, T. D.; and Crowder, J.; and Cullen, S. G.; and Cumming, T. J.; and Cunningham, A.; and Cuoco, L.; and Dal Canton, E.; and Dalya, T.; and Danilishin, G.; and D'Antonio, S. L.; and Danzmann, S.; and Dasgupta, K.; and Costa, A.; Da Silva and Dattilo, C. F.; and Dave, V.; and Davier, I.; and Davis, M.; and Daw, D.; and Day, E. J.; and DeBra, B.; and Deenadayalan, D.; and Degallaix, M.; and De laurentis, J.; and Deleglise, M.; and Del Pozzo, S.; and Demos, W.; and Denker, N.; and Dent, T.; and De Pietri, T.; and Derby, R.; and Dergachev, J.; and De Rosa, V.; and De Rossi, R.; and DeSalvo, C.; and de Varona, R.; and Dhurandhar, O.; and Diaz, S.; and Dietrich, M. C.; and Di Fiore, T.; and Di Giovanni, L.; and Di Girolamo, M.; and Di Lieto, T.; and Ding, A.; and Di Pace, B.; and Di Palma, S.; and Di Renzo, I.; and Dmitriev, F.; and Doctor, A.; and Dolique, Z.; and Donovan, V.; and Dooley, F.; and Doravari, K. L.; and Dorrington, S.; and Alvarez, I.; Dovale and Downes, M.; and Drago, T. P.; and Dreissigacker, M.; and Driggers, C.; and Du, J. C.; and Dupej, Z.; and Dwyer, P.; and Easter, S. E.; and Edo, P. J.; and Edwards, T. B.; and Effler, M. C.; and Eggenstein, A.; and Ehrens, H. -B.; and Eichholz, P.; and Eikenberry, J.; and Eisenmann, S. S.; and Eisenstein, M.; and Essick, R. A.; and Estelles, R. C.; and Estevez, H.; and Etienne, D.; and Etzel, Z. B.; and Evans, T.; and Evans, M.; and Fafone, T. M.; and Fair, V.; and Fairhurst, H.; and Fan, S.; and Farinon, X.; and Farr, S.; and Farr, B.; and Fauchon-Jones, W. M.; and Favata, E. J.; and Fays, M.; and Fee, M.; and Fehrmann, C.; and Feicht, H.; and Fejer, J.; and Feng, M. M.; and Fernandez-Galiana, F.; and Ferrante, A.; and Ferreira, I.; and Ferrini, E. C.; and Fidecaro, F.; and Fiori, F.; and Fiorucci, I.; and Fishbach, D.; and Fisher, M.; and Fishner, R. P.; and Fitz-Axen, J. M.; and Flaminio, M.; and Fletcher, R.; and Fong, M.; and Font, H.; and Forsyth, J. A.; and Forsyth, P. W. F.; and Fournier, S. S.; and Frasca, J. -D.; and Frasconi, S.; and Frei, F.; and Freise, Z.; and Frey, A.; and Frey, R.; and Fritschel, V.; and Frolov, P.; and Fulda, V. V.; and Fyffe, P.; and Gabbard, M.; and Gadre, H. A.; and Gaebel, B. U.; and Gair, S. M.; and Gammaitoni, J. R.; and Ganija, L.; and Gaonkar, M. R.; and Garcia, S. G.; and Garcia-Quiros, A.; and Garufi, C.; and Gateley, F.; and Gaudio, B.; and Gaur, S.; and Gayathri, G.; and Gemme, V.; and Genin, G.; and Gennai, E.; and George, A.; and George, D.; and Gergely, J.; and Germain, L.; and Ghonge, V.; and Ghosh, S.; Abhirup and Ghosh,; Archisman and Ghosh,; and Giacomazzo, S.; and Giaime, B.; and Giardina, J. A.; and Giazotto, K. D.; and Gill, A.; and Giordano, K.; and Glover, G.; and Goetz, L.; and Goetz, E.; and Goncharov, R.; and Gonzalez, B.; and Castro, G.; Gonzalez and Gopakumar, J. M.; and Gorodetsky, A.; and Gossan, M. L.; and Gosselin, S. E.; and Gouaty, M.; and Grado, R.; and Graef, A.; and Granata, C.; and Grant, M.; and Gras, A.; and Gray, S.; and Greco, C.; and Green, G.; and Green, A. C.; and Gretarsson, R.; and Groot, E. M.; and Grote, P.; and Grunewald, H.; and Gruning, S.; and Guidi, P.; and Gulati, G. M.; and Guo, H. K.; and Gupta, X.; and Gupta, A.; and Gushwa, M. K.; and Gustafson, K. E.; and Gustafson, E. K.; and Halim, R.; and Hall, O.; and Hall, B. R.; and Hamilton, E. D.; and Hamilton, E. Z.; and Hammond, H. F.; and Haney, G.; and Hanke, M.; and Hanks, M. M.; and Hanna, J.; and Hannam, C.; and Hannuksela, M. D.; and Hanson, O. A.; and Hardwick, J.; and Harms, T.; and Harry, J.; and Harry, G. M.; and Hart, I. W.; and Haster, M. J.; and Haughian, C. -J.; and Healy, K.; and Heidmann, J.; and Heintze, A.; and Heitmann, M. C.; and Hello, H.; and Hemming, P.; and Hendry, G.; and Heng, M.; and Hennig, I. S.; and Heptonstall, J.; and Hernandez, A. W.; and Heurs, F. J.; and Hild, M.; and Hinderer, S.; and Ho, T.; and Hoak, W. C. G.; and Hochheim, D.; and Hofman, S.; and Holland, D.; and Holt, N. A.; and Holz, K.; and Hopkins, D. E.; and Horst, P.; and Hough, C.; and Houston, J.; and Howell, E. A.; and Hreibi, E. J.; and Huerta, A.; and Huet, E. A.; and Hughey, D.; and Hulko, B.; and Husa, M.; and Huttner, S.; and Huynh-Dinh, S. H.; and Iess, T.; and Indik, A.; and Ingram, N.; and Inta, C.; and Intini, R.; and Irwin, G.; and Isa, B. S.; and Isac, H. N.; and Isi, J. -M.; and Iyer, M.; and Izumi, B. R.; and Jacqmin, K.; and Jani, T.; and Jaranowski, K.; and Johnson, P.; and Johnson, D. S.; and Jones, W. W.; and Jones, D. I.; and Jonker, R.; and Ju, R. J. G.; and Junker, L.; and Kalaghatgi, J.; and Kalogera, C. V.; and Kamai, V.; and Kandhasamy, B.; and Kang, S.; and Kanner, G.; and Kapadia, J. B.; and Karki, S. J.; and Karvinen, S.; and Kasprzack, K. S.; and Katolik, M.; and Katsanevas, M.; and Katsavounidis, S.; and Katzman, E.; and Kaufer, W.; and Kawabe, S.; and Keerthana, K.; and Elian, N. V.; Prime Ef Prime and Keitel, F. K.; and Kemball, D.; and Kennedy, A. J.; and Key, R.; and Khalili, J. S.; and Khamesra, F. Y.; and Khan, B.; and Khan, H.; and Khan, I.; and Khan, S.; and Khazanov, Z.; and Kijbunchoo, E. A.; and Kim, N.; Chunglee and Kim,; and Kim, J. C.; and Kim, K.; and Kim, W.; and Kim, W. S.; and King, Y. -M.; and King, E. J.; and Kinley-Hanlon, P. J.; and Kirchhoff, M.; and Kissel, R.; and Kleybolte, J. S.; and Klimenko, L.; and Knowles, S.; and Koch, T. D.; and Koehlenbeck, P.; and Koley, S. M.; and Kondrashov, S.; and Kontos, V.; and Korobko, A.; and Korth, M.; and Kowalska, W. Z.; and Kozak, I.; and Kraemer, D. B.; and Kringel, C.; and Krishnan, V.; and Krolak, B.; and Kuehn, A.; and Kumar, G.; and Kumar, P.; and Kumar, R.; and Kuo, S.; and Kutynia, L.; and Kwang, A.; and Lackey, S.; and Lai, B. D.; and Landry, K. H.; and Landry, M.; and Lang, P.; and Lange, R. N.; and Lantz, J.; and Lanza, B.; and Lartaux-Vollard, R. K.; and Lasky, A.; and Laxen, P. D.; and Lazzarini, M.; and Lazzaro, A.; and Leaci, C.; and Leavey, P.; and Lee, S.; and Lee, C. H.; and Lee, H. K.; and Lee, H. M.; and Lee, H. W.; and Lehmann, K.; and Lenon, J.; and Leonardi, A.; and Leroy, M.; and Letendre, N.; and Levin, N.; and Li, Y.; and Li, J.; and Li, T. G. F.; and Linker, X.; and Littenberg, S. D.; and Liu, T. B.; and Liu, J.; and Lo, X.; and Lockerbie, R. K. L.; and London, N. A.; and Longo, L. T.; and Lorenzini, A.; and Loriette, M.; and Lormand, V.; and Losurdo, M.; and Lough, G.; and Lousto, J. D.; and Lovelace, C. O.; and Lueck, G.; and Lumaca, H.; and Lundgren, D.; and Lynch, A. P.; and Ma, R.; and Macas, Y.; and Macfoy, R.; and Machenschalk, S.; and MacInnis, B.; and Macleod, M.; and Hernandez, D. M.; Magana and Magana-Sandoval, I.; and Zertuche, F.; Magana and Magee, L.; and Majorana, R. M.; and Maksimovic, E.; and Man, I.; and Mandic, N.; and Mangano, V.; and Mansell, V.; and Manske, G. L.; and Mantovani, M.; Marchesoni, F.; and Marion, F.; and Marka, F.; and Marka, S.; and Markakis, Z.; and Markosyan, C.; and Markowitz, A. S.; and Maros, A.; and Marquina, E.; and Martelli, A.; and Martellini, F.; and Martin, L.; and Martin, I. W.; and Martynov, R. M.; and Mason, D. V.; and Massera, K.; and Masserot, E.; and Massinger, A.; and Masso-Reid, T. J.; and Mastrogiovanni, M.; and Matas, S.; and Matichard, A.; and Matone, F.; and Mavalvala, L.; and Mazumder, N.; and McCann, N.; and McCarthy, J. J.; and McClelland, R.; and McCormick, D. E.; and McCuller, S.; and McGuire, L.; and McIver, S. C.; and McManus, J.; and McRae, D. J.; and McWilliams, T.; and Meacher, S. T.; and Meadors, D.; and Mehmet, G. D.; and Meidam, M.; and Mejuto-Villa, J.; and Melatos, E.; and Mendell, A.; and Mendoza-Gandara, G.; and Mercer, D.; and Mereni, R. A.; and Merilh, L.; and Merzougui, E. L.; and Meshkov, M.; and Messenger, S.; and Messick, C.; and Metzdorff, C.; and Meyers, R.; and Miao, P. M.; and Michel, H.; and Middleton, C.; and Mikhailov, H.; and Milano, E. E.; and Miller, L.; and Miller, A. L.; and Miller, A.; and Miller, B. B.; and Millhouse, J.; and Mills, M.; and Milovich-Goff, J.; and Minazzoli, M. C.; and Minenkov, O.; and Ming, Y.; and Mishra, J.; and Mitra, C.; and Mitrofanov, S.; and Mitselmakher, V. P.; and Mittleman, G.; and Moffa, R.; and Mogushi, D.; and Mohan, K.; and Mohapatra, M.; and Montani, S. R. P.; and Moore, M.; and Moraru, C. J.; and Moreno, D.; and Morisaki, G.; and Mours, S.; and Mow-Lowry, B.; and Mueller, C. M.; and Muir, G.; and Mukherjee, A. W.; Arunava and Mukherjee,; and Mukherjee, D.; and Mukund, S.; and Mullavey, N.; and Munch, A.; and Muniz, J.; and Muratore, E. A.; and Murray, M.; and Nagar, P. G.; and Napier, A.; and Nardecchia, K.; and Naticchioni, I.; and Nayak, L.; and Neilson, R. K.; and Nelemans, J.; and Nelson, G.; and Nery, T. J. N.; and Neunzert, M.; and Nevin, A.; and Newport, L.; and Ng, J. M.; and Ng, K. Y.; and Nguyen, S.; and Nguyen, P.; and Nichols, T. T.; and Nielsen, D.; and Nissanke, A. B.; and Nitz, S.; and Nocera, A.; and Nolting, F.; and North, D.; and Nuttall, C.; and Obergaulinger, L. K.; and Oberling, M.; and O'Brien, J.; and O'Dea, B. D.; and Ogin, G. D.; and Oh, G. H.; and Oh, J. J.; and Ohme, S. H.; and Ohta, F.; and Okada, H.; and Oliver, M. A.; and Oppermann, M.; and Oram, P.; and O'Reilly, Richard J.; and Ormiston, B.; and Ortega, R.; and O'Shaughnessy, L. F.; and Ossokine, R.; and Ottaway, S.; and Overmier, D. J.; and Owen, H.; and Pace, B. J.; and Pagano, A. E.; and Page, G.; and Page, J.; and Pai, M. A.; and Pai, A.; and Palamos, S. A.; and Palashov, J. R.; and Palomba, O.; and Pal-Singh, C.; and Pan, A.; Howard and Pan,; Huang-Wei and Pang,; and Pang, B.; and Pankow, P. T. H.; and Pannarale, C.; and Pant, F.; and Paoletti, B. C.; and Paoli, F.; and Papa, A.; and Parida, M. A.; and Parker, A.; and Pascucci, W.; and Pasqualetti, D.; and Passaquieti, A.; and Passuello, R.; and Patil, D.; and Patricelli, M.; and Pearlstone, B.; and Pedersen, B. L.; and Pedraza, C.; and Pedurand, M.; and Pekowsky, R.; and Pele, L.; and Penn, A.; and Perego, S.; and Perez, A.; and Perreca, C. J.; and Perri, A.; and Pfeiffer, L. M.; and Phelps, H. P.; and Phukon, M.; and Piccinni, K. S.; and Pichot, O. J.; and Piergiovanni, M.; and Pierro, F.; and Pillant, V.; and Pinard, G.; and Pinto, L.; and Pirello, I. M.; and Pitkin, M.; and Poggiani, M.; and Popolizio, R.; and Porter, P.; and Possenti, E. K.; and Post, L.; and Powell, A.; and Prasad, J.; and Pratt, J.; and Pratten, J. W. W.; and Predoi, G.; and Prestegard, V.; and Principe, T.; and Privitera, M.; and Prodi, S.; and Prokhorov, G. A.; and Puncken, L. G.; and Punturo, O.; and Puppo, M.; and Puerrer, P.; and Qi, M.; and Quetschke, H.; and Quintero, V.; and Quitzow-James, E. A.; and Raab, R.; and Rabeling, F. J.; and Radkins, D. S.; and Raffai, H.; and Raja, P.; and Rajan, S.; and Rajbhandari, C.; and Rakhmanov, B.; and Ramirez, M.; and Ramos-Buades, K. E.; and Rana, A.; Javed and Rapagnani,; and Raymond, P.; and Razzano, V.; and Read, M.; and Regimbau, J.; and Rei, T.; and Reid, L.; and Reitze, S.; and Ren, D. H.; and Ricci, W.; and Ricker, F.; and Riemenschneider, P. M.; and Riles, G. M.; and Rizzo, K.; and Robertson, M.; and Robie, N. A.; and Robinet, R.; and Robson, F.; and Rocchi, T.; and Rolland, A.; and Rollins, L.; and Roma, J. G.; and Romano, V. J.; and Romel, R.; and Romie, C. L.; and Rosinska, J. H.; and Ross, D.; and Rowan, M. P.; and Ruediger, S.; and Ruggi, A.; and Rutins, P.; and Ryan, G.; and Sachdev, K.; and Sadecki, S.; and Sakellariadou, T.; and Salconi, M.; and Saleem, L.; and Salemi, M.; and Samajdar, F.; and Sammut, A.; and Sampson, L.; and Sanchez, L. M.; and Sanchez, E. J.; and Sanchis-Gual, L. E.; and Sandberg, N.; and Sanders, V.; and Sarin, J. R.; and Sassolas, N.; and Sathyaprakash, B.; and Saulson, B. S.; and Sauter, P. R.; and Savage, O.; and Sawadsky, R. L.; and Schale, A.; and Scheel, P.; and Scheuer, M.; and Schmidt, J.; and Schnabel, P.; and Schofield, R.; and Schoenbeck, R. M. S.; and Schreiber, A.; and Schuette, E.; and Schulte, D.; and Schutz, B. W.; and Schwalbe, B. F.; and Scott, S. G.; and Scott, J.; and Seidel, S. M.; and Sellers, E.; and Sengupta, D.; and Sentenac, A. S.; and Sequino, D.; and Sergeev, V.; and Setyawati, A.; and Shaddock, Y.; and Shaffer, D. A.; and Shah, T. J.; and Shahriar, A. A.; and Shaner, M. S.; and Shao, M. B.; and Shapiro, L.; and Shawhan, B.; and Shen, P.; and Shoemaker, H.; and Shoemaker, D. H.; and Siellez, D. M.; and Siemens, K.; and Sieniawska, X.; and Sigg, M.; and Silva, D.; and Singer, A. D.; and Singh, L. P.; and Singhal, A.; and Sintes, A.; and Slagmolen, A. M.; and Slaven-Blair, B. J. J.; and Smith, T. J.; and Smith, B.; and Smith, J. R.; and Somala, R. J. E.; and Son, S.; and Sorazu, E. J.; and Sorrentino, B.; and Souradeep, F.; and Spencer, T.; and Srivastava, A. P.; and Staats, A. K.; and Steinke, K.; and Steinlechner, M.; and Steinlechner, J.; and Steinmeyer, S.; and Steltner, D.; and Stevenson, B.; and Stocks, S. P.; and Stone, D.; and Stops, R.; and Strain, D. J.; and Stratta, K. A.; and Strigin, G.; and Strunk, S. E.; and Sturani, A.; and Stuver, R.; and Summerscales, A. L.; and Sun, T. Z.; and Sunil, L.; and Suresh, S.; and Sutton, J.; and Swinkels, P. J.; and Szczepanczyk, B. L.; and Tacca, M. J.; and Tait, M.; and Talbot, S. C.; and Talukder, C.; and Tanner, D.; and Tapai, D. B.; and Taracchini, M.; and Tasson, A.; and Taylor, J. D.; and Taylor, J. A.; and Tewari, R.; and Theeg, S. V.; and Thies, T.; and Thomas, F.; and Thomas, E. G.; and Thomas, M.; and Thorne, P.; and Thrane, K. A.; and Tiwari, E.; and Tiwari, S.; and Tokmakov, V.; and Toland, K. V.; and Tonelli, K.; and Tornasi, M.; and Torres-Forne, Z.; and Torrie, A.; and Toyra, C. I.; And, D.; Travasso, F.; and Traylor, F.; and Trinastic, G.; and Tringali, J.; and Trovato, M. C.; and Trozzo, A.; and Tsang, L.; and Tse, K. W.; and Tso, M.; and Tsuna, R.; and Tsukada, D.; and Tuyenbayev, L.; and Ueno, D.; and Ugolini, K.; and Urban, D.; and Usman, A. L.; and Vahlbruch, S. A.; and Vajente, H.; and Valdes, G.; and van Bakel, G.; and van Beuzekom, N.; and van den Brand, M.; and Van Den Broeck, J. F. J.; and Vander-Hyde, C.; and van der Schaaf, D. C.; and van Heijningen, L.; and van Veggel, J. V.; and Vardaro, A. A.; and Varma, M.; and Vass, V.; and Vasuth, S.; and Vecchio, M.; and Vedovato, A.; and Veitch, G.; and Veitch, J.; and Venkateswara, P. J.; and Venugopalan, K.; and Verkindt, G.; and Vetrano, D.; and Vicere, F.; and Viets, A.; and Vinciguerra, A. D.; and Vine, S.; and Vinet, D. J.; and Vitale, J. -Y.; and Vo, S.; and Vocca, T.; and Vorvick, H.; and Vyatchanin, C.; and Wade, S. P.; and Wade, A. R.; and Wade, L. E.; and Walet, M.; and Walker, R.; and Wallace, M.; and Walsh, L.; and Wang, S.; and Wang, G.; and Wang, H.; and Wang, J. Z.; and Wang, W. H.; and Ward, Y. F.; and Warner, R. L.; and Was, J.; and Watchi, M.; and Weaver, J.; and Wei, B.; and Weinert, L. -W.; and Weinstein, M.; and Weiss, A. J.; and Wellmann, R.; and Wen, F.; and Wessel, L.; and Wessels, E. K.; and Westerweck, P.; and Wette, J.; and Whelan, K.; and Whiting, J. T.; and Whittle, B. F.; and Wilken, C.; and Williams, D.; and Williams, D.; and Williamson, R. D.; and Willis, A. R.; and Willke, J. L.; and Wimmer, B.; and Winkler, M. H.; and Wipf, W.; and Wittel, C. C.; and Woan, H.; and Woehler, G.; and Wofford, J.; and Wong, J. K.; and Worden, W. K.; and Wright, J.; and Wu, J. L.; and Wysocki, D. S.; and Xiao, D. M.; and Yam, S.; and Yamamoto, W.; and Yancey, H.; and Yang, C. C.; and Yap, L.; and Yazback, M. J.; and Yu, M.; Hang and Yu,; Haocun and Yvert,; and Zadrozny, M.; and Zanolin, A.; and Zelenova, M.; and Zendri, T.; and Zevin, J. -P.; and Zhang, M.; and Zhang, J.; and Zhang, L.; and Zhang, M.; and Zhang, T.; and Zhao, Y. -H.; and Zhou, C.; and Zhou, M.; and Zhu, Z.; and Zhu, S. J.; and Zimmerman, X. J.; and Zlochower, A. B.; and Zucker, Y.; and Zweizig, M. E.; and LIGO Sci Collaboration and Virgo Collaboration, J.

doi:10.1103/PhysRevLett.121.161101

On 17 August 2017, the LIGO and Virgo observatories made the first direct detection of gravitational waves from the coalescence of a neutron star binary system. The detection of this gravitational-wave signal, GW170817, offers a novel opportunity to directly probe the properties of matter at the extreme conditions found in the interior of these stars. The initial, minimal-assumption analysis of the LIGO and Virgo data placed constraints on the tidal effects of the coalescing bodies, which were then translated to constraints on neutron star radii. Here, we expand upon previous analyses by working under the hypothesis that both bodies were neutron stars that are described by the same equation of state and have spins within the range observed in Galactic binary neutron stars. Our analysis employs two methods: the use of equation-of-state-insensitive relations between various macroscopic properties of the neutron stars and the use of an efficient parametrization of the defining function p(rho) of the equation of state itself. From the LIGO and Virgo data alone and the first method, we measure the two neutron star radii as R-1 = 10.8(-1.7)(+2.0) km for the heavier star and R-2 = 10.7(-1.5)(+2.1) km for the lighter star at the 90% credible level. If we additionally require that the equation of state supports neutron stars with masses larger than 1.97 M-circle dot as required from electromagnetic observations and employ the equation-of-state parametrization, we further constrain R-1 = 11.9(-1.4)(+1.4) km and R-2 = 11.9(-1.4)(+1.4) km at the 90% credible level. Finally, we obtain constraints on p(rho) at supranuclear densities, with pressure at twice nuclear saturation density measured at 3.5(-1.7)(+2.7) x 10(34) dyn cm(-2) at the 90% level.