Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run

Abac, A. G., Abouelfettouh, I., Acernese, F., Ackley, K., Adamcewicz, C., Al-Shammari, S., Amarasinghege, O., Bergamin, F., Divyajyoti, D. ORCID: https://orcid.org/0000-0002-2787-1012, Dooley, K. L. ORCID: https://orcid.org/0000-0002-1636-0233, Fairhurst, S. ORCID: https://orcid.org/0000-0001-8480-1961, Gottel, A. S. ORCID: https://orcid.org/0000-0002-6215-4641, Grote, H. ORCID: https://orcid.org/0000-0002-0797-3943, Hannam, M. D. ORCID: https://orcid.org/0000-0001-5571-325X, Higginbotham, S., Javed, W. ORCID: https://orcid.org/0009-0009-1471-7890, Kinnear, M., Kokeyama, K. ORCID: https://orcid.org/0000-0002-2896-1992, Kuntimaddi, N., MacLeod, D. M. ORCID: https://orcid.org/0000-0002-1395-8694, Norman, M., North, C., Patra, A., Patterson, B. G., Pearce, T., Raymond, V. ORCID: https://orcid.org/0000-0003-0066-0095, Sathyaprakash, B. S. ORCID: https://orcid.org/0000-0003-3845-7586, Schutz, B. F. ORCID: https://orcid.org/0000-0001-9487-6983, Skliris, V., Sutton, P. J. ORCID: https://orcid.org/0000-0003-1614-3922, Tanioka, S. and Tsang, T. 2026. Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run. The Astrophysical Journal 1004 (2) , 232. 10.3847/1538-4357/ae211e

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Abstract

LIGO, Virgo, and KAGRA form a network of gravitational-wave observatories. Data and analysis results from this network are made publicly available through the Gravitational Wave Open Science Center. This paper describes open data from this network, including the addition of data from the first part of the fourth observing run and selected periods from the preceding engineering run, collected from 2023 May to 2024 January. The public dataset includes calibrated strain time series for each instrument, data from additional channels used for noise subtraction and detector characterization, and analysis data products from version 4.0 of the Gravitational-Wave Transient Catalog.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Additional Information:	For full author list see https://doi.org/10.3847/1538-4357/ae211e License information from Publisher: LICENSE 1: URL: https://creativecommons.org/licenses/by/4.0/, Type: cc-by
Publisher:	American Astronomical Society
ISSN:	0004-637X
Date of First Compliant Deposit:	24 June 2026
Date of Acceptance:	5 November 2025
Last Modified:	07 Aug 2026 22:32
URI:	https://orca.cardiff.ac.uk/id/eprint/187731

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