GWTC-4: Methods for identifying and characterizing gravitational-wave transients

Document #:

LIGO-P2400300-v11

Document type:

P - Publications

Abstract:

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 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.

Files in Document:

• GWTC-4.0_methods_v11.pdf (1.0 MB)

Topics:

• Compact Binaries

Author Groups:

• LVK

Keywords:

gwtc gwtc-4 methods

Related Documents:

• LIGO-P2500167: Open Data from LIGO, Virgo, and KAGRA through the First Part of the Fourth Observing Run
• LIGO-P2400293: GWTC-4.0: An Introduction to Version 4.0 of the Gravitational Wave Transient Catalog

Referenced by:

• LIGO-P2400293-v11: GWTC-4.0: An Introduction to Version 4.0 of the Gravitational Wave Transient Catalog

Publication Information:

Available on arXiv at https://arxiv.org/abs/2508.18081