Academic paper
Advanced Virgo during the LIGO-Virgo-KAGRA fourth observing run
Authors: Virgo Collaboration: F Acernese, A Agapito, D Agarwal, I-L Ahrend, L Aiello, A Ain, W Ali, A Allocca, W Amar, A Amato, F Amicucci, C Amra, M Andia, T Andri, S Antier, F Arciprete, F Armato, N Arnaud, L Asprea, M Assiduo, S Assis de Souza Melo, P Astone, F Attadio, F Aubin, G Avallone, N Avdeev, S Babak, S Bagnasco, S Baimukhametova, T Baka, G Balbi, G Baldi, N Baldicchi, G Ballardin, M Ballelli, B Banerjee, M Baratti, F Barone, M Barsuglia, D Barta, A Basti, M Bawaj, M Bazzan, F Beirnaert, M Bejger, C Bellani, D Beltran-Martinez, E Benedetti, I Bentara, S Bera, D Bersanetti, T Bertheas, A Bertolini, J Bezerra-Sobrinho, V Biancalana, F Bianchi, M Bilicki, A Binetti, S Biot, M Bitossi, M-A Bizouard, M Bloch, G Boileau, M Boldrini, R Bonnand, N Borghi, V Boschi, Y Bothra, A Boudon, A Bozzi, C Bradaschia, M Branchesi, T Briant, A Brillet, M L Brozzetti, G Bruno, F Bucci, A Buchicchio, A Buggiani, O Bulashenko, T Bulik, H J Bulten, R Buscicchio, N Busdon, D Buskulic, R Cabrita, G Cagnoli, E Calloni, E Capocasa, G Capoccia, G Capurri, F Carbognani, M Carpinelli, A Casallas-Lagos, J Casanueva Diaz, C Casentini, R Cavalieri, G Cella, P Cerd, E Cesarini, W Chaibi, E Chassande-Mottin, S Chaty, P Chessa, F Chiadini, A Chincarini, A Chiummo, A Chopra, N Christensen, G Ciani, M Cie, P Ciecielag, M Cifaldi, S Clesse, F Cleva, E Coccia, E Codazzo, P-F Cohadon, A Colombo, G Comp, L Conti, I Cordero-Carri, S Corezzi, S Cortese, L A Corubolo, A Cozzumbo, K Csuk, E Cuoco, M Cusinato, R R Cuzinatto, B D'Angelo, S D'Antonio, L D'Onofrio, D D'Urso, G D, S Dall'Osso, T Dal Canton, S Dal Pra, S Danilishin, V Dattilo, A Daumas, P Davis, J Degallaix, C J Delgado Mendez, S Della Torre, W Del Pozzo, A Demagny, G Demasi, A Depasse, J De Bolle, M De Laurentis, F De Lillo, F De Marco, F De Matteis, C de Melo, R De Pietri, R De Rosa, C De Rossi, R De Simone, S Dhage, C Diaz, F Diaz Guerra, M A Dicorato, D Diksha, J Ding, M Di Cesare, M Di Giovanni, S Di Pace, I Di Palma, D Di Piero, F Di Renzo, A Domiciano De Souza, O Dorosh, M Drago, M Dubois, U Dupletsa, H Duval, H Einsle, V Ernst, L Errico, M Esposito, F Fabrizi, V Fafone, M Fays, E Fenyvesi, A Feo, G Fern, T Fernandes, S Ferraiuolo, F Fidecaro, P Figura, I Fiori, V Fiumara, R Flaminio, F Flocco, J A Font, A Fragkos, N Franchini, F Frappez, F Frasconi, A Freise, O Freitas, S Galaudage, M Galimberti, B Garaventa, J Garc, P Garc, J Gargiulo, X Garrido, F Garufi, C Gasbarra, F Gautier, G Gemme, A Gennai, V Gennari, A Ghinassi, Archisman Ghosh, F Gittins, F Glotin, E Glowacki, S Gomez Lopez, A Goodwin-Jones, M Gosselin, C Gostiaux, R Gouaty, D Goupilliere, A Grado, M Granata, V Granata, G Greco, A C Green, C Grimaud, G M Guidi, F Gulminelli, Y Guo, M Haney, S Harikumar, J Harms, M T Hartman, B Haskell, D Hegde, H Heitmann, G Hemming, J Heynen, S Hild, D Hofman, L Honet, W-F Hsu, L Iampieri, G A Iandolo, M Ianni, A Ierardi, P Iosif, J Irwin, C Jacquet, T Jacquot, J Janquart, S Jaraba, P Jaranowski, G Joubert, B Kacskovics, A Karia, W Kiendrebeogo, S Koley, A E Koloniari, A Kr, E Kraja, S L Kranzhoff, J Kubisz, S Kuroyanagi, N Lajili, A Lakhal, M Lalleman, J A Lange, A Lartaux-Vollard, L Lavezzi, C Lazzaro, P Leaci, F Legger, A Lema, R Lemrani Alaoui, M Lenti, M Leonardi, M Lequime, N Letendre, M Lethuillier, S Lexmond, M Le Jean, T G F Li, F Liu, J-P Locquet, A Longo, M Lopez Portilla, M Lorenzini, V Loriette, M Lorusso, G Losurdo, D Lumaca, L Lunghini, A Macquet, S S Madekar, S Maenaut, E Maggio, M Magnozzi, E Majorana, N Man, M Mancarella, V Mangano, M Mantovani, M Mapelli, S Marchetti, F Marion, S Marsat, F Martelli, M Martinez, V Martinez, A Martini, J C Martins, L Massaro, A Masserot, S Mastrogiovanni, G Mastropasqua, L Maurin, L G Medeiros, L Mereni, C Michel, E Milotti, V Milotti, E Minakaki, Y Minenkov, Ll. M Mir, L Mirasola, C-A Miritescu, L Mobilia, M Montani, G Montefusco, A Moreso Serra, G Morras, A Moscatello, B Mours, C M Mow-Lowry, L Muccillo, F Muciaccia, D Nabari, S Nadji, A Nagar, D Nanadoumgar-Lacroze, V Napolano, A Nardecchia, I Nardecchia, H Narola, L Naticchioni, L Negri, A Nemmani, T C K Ng, S Nissanke, F Nocera, J Novak, M Oertel, G Oganesyan, R Oliveira, A Ouzriat, M A Palaia, C Palomba, P T H Pang, F Pannarale, M Panzeri, F Paoletti, A Paoli, A Paolone, L Papalini, G Papigkiotis, A Paquis, A Parisi, D Pascucci, A Pasqualetti, D Passuello, B Patricelli, K Paul, A Perreca, J Perret, D Pesios, C Petrillo, L Piccari, M Pichot, M Piendibene, F Piergiovanni, L Pierini, G Pierra, V Pierro, M Pillas, L Pinard, I M Pinto, M Pinto, A Pisarski, E Placidi, R Poggiani, E Polini, M Polo, J Pomper, E Porcelli, E K Porter, M Pracchia, G Principe, G A Prodi, P Prosperi, P Prosposito, M Punturo, P Puppo, G Qu, I Rainho, P Rapagnani, M Razzano, T Regimbau, A I Renzini, B Revenu, A Revilla-Pe, F Ricci, M Ricci, A Ricciardone, A Riminucci, F Robinet, A Rocchi, L Rolland, R Romano, A Romero-Rodr, S Ronchini, D Rosi, S Roy, D Rozza, P Ruggi, E Ruiz Morales, F Safai Tehrani, P Saffarieh, T Sainrat, S Sajith Menon, L Salconi, F Salemi, M Sall, M Salom, S Salvador, A Samajdar, N Sanchis-Gual, F Santoliquido, F Sarandrea, P Sassi, B Sassolas, M Schoor, K Schouteden, M Schulz, M Scialpi, M Seglar-Arroyo, J W Seo, V Sequino, M Serra, A Sevrin, L Silenzi, P J S Silva, L Silvestri, L Smith, S Soares de Albuquerque Filho, V Sordini, F Sorrentino, F Spada, V Spagnuolo, M Spera, P Spinicelli, D A Steer, J Steinlechner, S Steinlechner, N Stergioulas, M Suchenek, S Sudhagar, J Sun, J Suresh, A Svizzeretto, B L Swinkels, A Syx, M J Szczepa, M Tacca, M Tagliazucchi, I Takimoto Schmiegelow, N Tamanini, L Tao, E N Tapia San Mart, A Theodoropoulos, J Tissino, P Tiwari, E Tofani, M Toffano, I Tosta e Melo, E Tournefier, A Trapananti, R Travaglini, F Travasso, M C Tringali, G Troian, A Trovato, L Trozzo, M Turconi, C Turski, H Ubach, M Vacatello, M Valentini, E Vallejo-Pag, S Vallero, M van Dael, E Van den Bossche, J F J van den Brand, C Van Den Broeck, M van der Kolk, M van der Sluys, A Van de Walle, J van Dongen, H van Haevermaet, J V van Heijningen, P Van Hove, N van Remortel, M Vardaro, G Vedovato, S Venikoudis, P Verdier, M Vereecken, D Verkindt, S Verma, F Vetrano, A Veutro, A Vicer, N Villanueva Espinosa, J-Y Vinet, S Viret, H Vocca, M Was, M Wils, I C F Wong, T Wouters, M Wright, Z Wu, N Yadav, M Zanatta, T Zelenova, J-P Zendri, M Zeoli, M Zerrad, J Zhang, Y Zhao, L Zhizhong, L ZimmermannPublished: 2026-07-29Paper ID: 2607.26872Category: gr-qcLicense: CC BY 4.0
Abstract
From April 10, 2024 to November 18, 2025 Advanced Virgo participated in the fourth observing run of the network of gravitational-wave detectors, together with Advanced LIGO and KAGRA. For this observing run Advanced Virgo has completed its design optical configuration with the installation of a signal recycling mirror. In this paper we describe the challenges encountered in commissioning this optical configuration, alongside the other upgrades performed between the third and fourth observing run. The Virgo detector operated with a 68.9% duty cycle and with an angle-averaged median range to binary neutron star mergers of 53 Mpc.
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