LIGO Detector Characterization in the first half of the fourth Observing run
Instrumentation and Methods for Astrophysics
2025-07-23 v2 General Relativity and Quantum Cosmology
Abstract
Progress in gravitational-wave astronomy depends upon having sensitive detectors with good data quality. Since the end of the LIGO-Virgo-KAGRA third Observing run in March 2020, detector-characterization efforts have lead to increased sensitivity of the detectors, swifter validation of gravitational-wave candidates and improved tools used for data-quality products. In this article, we discuss these efforts in detail and their impact on our ability to detect and study gravitational-waves. These include the multiple instrumental investigations that led to reduction in transient noise, along with the work to improve software tools used to examine the detectors data-quality. We end with a brief discussion on the role and requirements of detector characterization as the sensitivity of our detectors further improves in the future Observing runs.
Cite
@article{arxiv.2409.02831,
title = {LIGO Detector Characterization in the first half of the fourth Observing run},
author = {S. Soni and B. K. Berger and D. Davis and F. Di. Renzo and A. Effler and T. A. Ferreira and J. Glanzer and E. Goetz and G. González and A. Helmling-Cornell and B. Hughey and R. Huxford and B. Mannix and G. Mo and D. Nandi and A. Neunzert and S. Nichols and K. Pham and A. I. Renzini and R. M. S. Schofield and A Stuver and M. Trevor and S. Álvarez-López and R. Beda and C. P. L. Berry and S. Bhuiyan and R. Bruntz and N. Christensen and L. Blagg and M. Chan and P. Charlton and G. Connolly and R. Dhatri and J. Ding and V. Garg and K. Holley-Bockelmann and S. Hourihane and K. Jani and K. Janssens and S. Jarov and A. M. Knee and A. Lattal and Y. Lecoeuche and T. Littenberg and A. Liyanage and B. Lott and R. Macas and D. Malakar and K. McGowan and J. McIver and M. Millhouse and L. Nuttall and D. Nykamp and I. Ota and C. Rawcliffe and B. Scully and J. Tasson and A. Tejera and S. Thiele and R. Udall and C. Winborn and Z. Yarbrough and Z. Zhang and R. Abbott and I. Abouelfettouh and R. X. Adhikari and A. Ananyeva and S. Appert and K. Arai and N. Aritomi and S. M. Aston and M. Ball and S. W. Ballmer and D. Barker and L. Barsotti and J. Betzwieser and G. Billingsley and S. Biscans and N. Bode and E. Bonilla and V. Bossilkov and A. Branch and A. F. Brooks and D. D. Brown and J. Bryant and C. Cahillane and H. Cao and E. Capote and F. Clara and J. Collins and C. M. Compton and R. Cottingham and D. C. Coyne and R. Crouch and J. Csizmazia and T. J. Cullen and L. P. Dartez and N. Demos and E. Dohmen and J. C. Driggers and S. E. Dwyer and A. Ejlli and T. Etzel and M. Evans and J. Feicht and R. Frey and W. Frischhertz and P. Fritschel and V. V. Frolov and P. Fulda and M. Fyffe and D. Ganapathy and B. Gateley and J. A. Giaime and K. D. Giardina and R. Goetz and A. W. Goodwin-Jones and S. Gras and C. Gray and D. Griffith and H. Grote and T. Guidry and E. D. Hall and J. Hanks and J. Hanson and M. C. Heintze and N. A. Holland and D. Hoyland and H. Y. Huang and Y. Inoue and A. L. James and A. Jennings and W. Jia and S. Karat and S. Karki and M. Kasprzack and K. Kawabe and N. Kijbunchoo and P. J. King and J. S. Kissel and K. Komori and A. Kontos and Rahul Kumar and K. Kuns and M. Landry and B. Lantz and M. Laxen and K. Lee and M. Lesovsky and F. Llamas and M. Lormand and H. A. Loughlin and R. Macas and M. MacInnis and C. N. Makarem and G. L. Mansell and R. M. Martin and K. Mason and F. Matichard and N. Mavalvala and N. Maxwell and G. McCarrol and R. McCarthy and D. E. McClelland and S. McCormick and L. McCuller and T. McRae and F. Mera and E. L. Merilh and F. Meylahn and R. Mittleman and D. Moraru and G. Moreno and A. Mullavey and M. Nakano and T. J. N. Nelson and J. Notte and J. Oberling and T. O'Hanlon and C. Osthelder and D. J. Ottaway and H. Overmier and W. Parker and A. Pele and H. Pham and M. Pirello and V. Quetschke and K. E. Ramirez and J. Reyes and J. W. Richardson and M. Robinson and J. G. Rollins and C. L. Romel and J. H. Romie and M. P. Ross and K. Ryan and T. Sadecki and A. Sanchez and E. J. Sanchez and L. E. Sanchez and R. L. Savage and D. Schaetzl and M. G. Schiworski and R. Schnabel and E. Schwartz and D. Sellers and T. Shaffer and R. W. Short and D. Sigg and B. J. J. Slagmolen and C. Soike and V. Srivastava and L. Sun and D. B. Tanner and M. Thomas and P. Thomas and K. A. Thorne and C. I. Torrie and G. Traylor and A. S. Ubhi and G. Vajente and J. Vanosky and A. Vecchio and P. J. Veitch and A. M. Vibhute and E. R. G. von Reis and J. Warner and B. Weaver and R. Weiss and C. Whittle and B. Willke and C. C. Wipf and V. A. Xu and H. Yamamoto and L. Zhang and M. E. Zucker},
journal= {arXiv preprint arXiv:2409.02831},
year = {2025}
}
Comments
35 pages, 18 figures