TY - JOUR
T1 - GWTC-4.0
T2 - Methods for Identifying and Characterizing Gravitational-wave Transients
AU - The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration
AU - Abac, A. G.
AU - Abouelfettouh, I.
AU - Acernese, F.
AU - Ackley, K.
AU - Adhicary, S.
AU - Adhikari, D.
AU - Adhikari, N.
AU - Adhikari, R. X.
AU - Adkins, V. K.
AU - Afroz, S.
AU - Agarwal, D.
AU - Agathos, M.
AU - Aghaei Abchouyeh, M.
AU - Aguiar, O. D.
AU - Ahmadzadeh, S.
AU - Aiello, L.
AU - Ain, A.
AU - Ajith, P.
AU - Akcay, S.
AU - Akutsu, T.
AU - Albanesi, S.
AU - Alfaidi, R. A.
AU - Al-Jodah, A.
AU - Alléné, C.
AU - Allocca, A.
AU - Al-Shammari, S.
AU - Altin, P. A.
AU - Alvarez-Lopez, S.
AU - Amarasinghe, O.
AU - Amato, A.
AU - Amra, C.
AU - Ananyeva, A.
AU - Anderson, S. B.
AU - Anderson, W. G.
AU - Andia, M.
AU - Ando, M.
AU - Andrade, T.
AU - Andrés-Carcasona, M.
AU - Andrić, T.
AU - Anglin, J.
AU - Ansoldi, S.
AU - Antelis, J. M.
AU - Antier, S.
AU - Aoumi, M.
AU - Appavuravther, E. Z.
AU - Appert, S.
AU - Apple, S. K.
AU - Arai, K.
AU - Araya, A.
AU - Guetta, D.
N1 - Publisher Copyright:
© 2026. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the https://creativecommons.org/licenses/by/4.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
PY - 2026/6/20
Y1 - 2026/6/20
N2 - The Gravitational-Wave Transient Catalog (GWTC) is a collection of candidate gravitational-wave transient signals identified and characterized by the LIGO–Virgo–KAGRA Collaboration. Producing the contents of the GWTC from detector data requires complex analysis methods. These comprise techniques to model the signal; identify the transients in the data; evaluate the quality of the data and mitigate possible instrumental issues; infer the parameters of each transient; compare the data with the waveform models for compact binary coalescences; and handle the large amount of results associated with all of these different analyses. In this paper, we describe the methods employed to produce the catalog’s fourth release, GWTC-4.0, focusing on the analysis of the first part of the fourth observing run of Advanced LIGO, Advanced Virgo and KAGRA.
AB - The Gravitational-Wave Transient Catalog (GWTC) is a collection of candidate gravitational-wave transient signals identified and characterized by the LIGO–Virgo–KAGRA Collaboration. Producing the contents of the GWTC from detector data requires complex analysis methods. These comprise techniques to model the signal; identify the transients in the data; evaluate the quality of the data and mitigate possible instrumental issues; infer the parameters of each transient; compare the data with the waveform models for compact binary coalescences; and handle the large amount of results associated with all of these different analyses. In this paper, we describe the methods employed to produce the catalog’s fourth release, GWTC-4.0, focusing on the analysis of the first part of the fourth observing run of Advanced LIGO, Advanced Virgo and KAGRA.
KW - Gravitational wave astronomy (675)
KW - Gravitational wave detectors (676)
KW - Gravitational wave sources (677)
KW - Neutron stars (1108)
KW - Stellar mass black holes (1611)
UR - https://www.scopus.com/pages/publications/105042196208
U2 - 10.3847/2041-8213/ae447b
DO - 10.3847/2041-8213/ae447b
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AN - SCOPUS:105042196208
SN - 2041-8205
VL - 1004
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L21
ER -