TY - JOUR
T1 - LIGO Detector Characterization in the first half of the fourth Observing run
AU - LIGO Scientific Collaboration
AU - Soni, S.
AU - Berger, B. K.
AU - Davis, D.
AU - Di Renzo, F.
AU - Effler, A.
AU - Ferreira, T. A.
AU - Glanzer, J.
AU - Goetz, E.
AU - González, G.
AU - Helmling-Cornell, A.
AU - Hughey, B.
AU - Huxford, R.
AU - Mannix, B.
AU - Mo, G.
AU - Nandi, D.
AU - Neunzert, A.
AU - Nichols, S.
AU - Pham, K.
AU - Renzini, A. I.
AU - Schofield, R. M.S.
AU - Stuver, A.
AU - Trevor, M.
AU - Álvarez-López, S.
AU - Beda, R.
AU - Berry, C. P.L.
AU - Bhuiyan, S.
AU - Blagg, L.
AU - Bruntz, R.
AU - Callos, S.
AU - Chan, M.
AU - Charlton, P.
AU - Christensen, N.
AU - Connolly, G.
AU - Dhatri, R.
AU - Ding, J.
AU - Garg, V.
AU - Holley-Bockelmann, K.
AU - Hourihane, S.
AU - Jani, K.
AU - Janssens, K.
AU - Jarov, S.
AU - Knee, A. M.
AU - Lattal, A.
AU - Lecoeuche, Y.
AU - Littenberg, T.
AU - Liyanage, A.
AU - Lott, B.
AU - Macas, R.
AU - Malakar, D.
AU - Nuttall, L.
N1 - Publisher Copyright:
© 2025 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved.
PY - 2025/4/18
Y1 - 2025/4/18
N2 - Progress in gravitational-wave (GW) astronomy depends upon having sensitive detectors with good data quality. Since the end of the Laser Interferometer Gravitational-Wave Observatory-Virgo-KAGRA third Observing run in March 2020, detector-characterization efforts have lead to increased sensitivity of the detectors, swifter validation of GW 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 GWs. 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.
AB - Progress in gravitational-wave (GW) astronomy depends upon having sensitive detectors with good data quality. Since the end of the Laser Interferometer Gravitational-Wave Observatory-Virgo-KAGRA third Observing run in March 2020, detector-characterization efforts have lead to increased sensitivity of the detectors, swifter validation of GW 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 GWs. 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.
KW - detector characterization
KW - gravitational wave detectors
KW - LIGO
KW - noise reduction
UR - http://www.scopus.com/inward/record.url?scp=105003185796&partnerID=8YFLogxK
UR - https://arxiv.org/abs/2409.02831
U2 - 10.1088/1361-6382/adc4b6
DO - 10.1088/1361-6382/adc4b6
M3 - Article
AN - SCOPUS:105003185796
SN - 0264-9381
VL - 42
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
IS - 8
M1 - 085016
ER -