Advanced LIGO detector performance in the fourth observing run

Capote, E.; Jia, Wenxuan; Aritomi, N.; Nakano, Masayuki; Xu, Victoria; Abbott, R.; Abouelfettouh, I.; Adhikari, R. X.; Ananyeva, A.; Appert, S.; Apple, S. K.; Arai, K.; Aston, S. M.; Ball, M.; Ballmer, S.; Barker, D.; Barsotti, L.; Berger, B. K.; Betzwieser, J.; Bhattacharjee, D.; Billingsley, G.; Biscans, S.; Blair, C. D.; Bode, N.; Bonilla, E.; Bossilkov, V.; Branch, A.; Brooks, A. F.; Brown, Daniel; Bryant, John; Cahillane, C.; Cao, H.; Clara, F.; Collins, James D.; Compton, C. M.; Cottingham, R.; Coyne, D. C.; Crouch, R. K.; Csizmazia, J.; Cumming, A.; Dartez, L. P.; Davis, D.; Demos, Nicholas; Dohmen, E.; Driggers, J. C.; Dwyer, S. E.; Effler, A.; Ejlli, A.; Etzel, T.; Evans, M.; Feicht, J.; Frey, R.; Frischhertz, W.; Fritschel, P.; Frolov, Valery; Fritschel, P.; Fulda, P.; Fyffe, M.; Ganapathy, D.; Gateley, B.; Gayer, T.; Giaime, J. A.; Giardina, K. D.; Glanzer, J.; Goetz, E.; Goetz, R.; Jones, A. W.; Gras, S.; Gray, C.; Griffith, D.; Grote, H.; Guidry, T.; Gurs, J.; Hall, E. D.; Hanks, J.; Hanson, J.; Heintze, M. C.; Helmling-Cornell, A. F.; Holland, N. A.; Hoyland, D.; Huang, H. Y.; Inoue, Yuki; James, A. L.; Jamies, A.; Jennings, A.; Jones, D. H.; Kabagöz, H. B.; Karat, S.; Karki, S.; Kasprzack, M.; Kawabe, K.; Kijbunchoo, N.; King, Peter; Kissel, J. S.; Komori, K.; Kontos, A.; Kumar, Rahul; Kuns, K.; Landry, M.; Lantz, B.; Laxen, M.; Lee, H. K.; Lesovsky, M.; Villarreal, F. Llamas; Lormand, M.; Loughlin, Hudson A.; Macas, R.; MacInnis, M.; Makarem, C. N.; Mannix, B.; Mansell, G. L.; Martin, R. M.; Mason, K.; Matichard, F.; Mavalvala, N.; Maxwell, N.; McCarrol, G.; McCarthy, R.; McClelland, D. E.; McCormick, S.; McRae, T.; Mera, F.; Merilh, E. L.; Meylahn, F.; Mittleman, R.; Moraru, D.; Moreno, G.; Mullavey, A.; Nelson, T. J. N.; Neunzert, A.; Notte, J.; Oberling, J.; O’Hanlon, T.; Osthelder, C.; Ottaway, D. J.; Overmier, H.; Parker, W.; Patane, O.; Pele, A.; Pham, H.; Pirello, M.; Pullin, Jorge; Quetschke, Volker; Ramirez, K. E.; Ransom, Katherine M.; Reyes, Juan Francisco Mandujano; Richardson, J. W.; Robinson, Mitchell B.; Rollins, J. G.; Romel, C. L.; Romie, J. H.; Ross, M. P.; Ryan, K.; Sadecki, T.; Sanchez, A.; Sanchez, E. J.; Sanchez, L. E.; Savage, R. L.; Schaetzl, D.; Schiworski, M. G.; Schnabel, Roman; Schofield, R. M. S.; Schwartz, E.; Sellers, D.; Shaffer, T.; Short, R. W.; Sigg, D.; Slagmolen, B. J. J.; Soike, C.; Soni, S.; Srivastava, V.; Sun, L.; Tanner, D. B.; Thomas, M.; Thomas, P.; Thorne, K.; Todd, M. R.; Torrie, C. I.; Traylor, G.; Ubhi, A. S.; Vajente, G.; Vanosky, J.; Vecchio, A.; Veitch, P. J.; Vibhute, A.; Reis, E. R. G. von; Warner, J.; Weaver, B.; Weiss, Robert A.; Whittle, C.; Willke, B.; Wipf, C. C.; Wright, J. L.; Yamamoto, H.; Zhang, Liyuan; Zucker, M. E.

doi:10.1103/physrevd.111.062002

articlePhysical review. D/Physical review. D.Mar 3, 2025GREEN OA

Advanced LIGO detector performance in the fourth observing run

ECE. Capote WJWenxuan Jia NAN. Aritomi MNMasayuki Nakano VXVictoria Xu

California Institute of Technology · Syracuse University · +28 more institutions

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Abstract

On May 24, 2023, the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), joined by the Advanced Virgo and KAGRA detectors, began the fourth observing run for a two-year-long dedicated search for gravitational waves. The LIGO Hanford and Livingston detectors have achieved an unprecedented sensitivity to gravitational waves, with an angle-averaged median range to binary neutron star mergers of 152 and 160 Mpc, and duty cycles of 65.0% and 71.2%, respectively, with a coincident duty cycle of 52.6%. The maximum range achieved by the LIGO Hanford detector is 165 Mpc and the LIGO Livingston detector 177 Mpc, both achieved during the second part of the fourth observing run. For the fourth run, the…

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LIGO
Detector
Computer science
Physics
Telecommunications

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