Dr G. Koekoek

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GW240925 and GW250207: Astrophysical Calibration of Gravitational Wave Detectors. Physical Review Letters, 137(7), Article 071401. https://doi.org/10.1103/gzrj-mwv3

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation. Astrophysical Journal Letters, 1007(1), Article L17. https://doi.org/10.3847/2041-8213/ae69dd

KAGRA Collaboration, LIGO Scientific Collaboration, & Virgo Collaboration (2026). Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run. Physical Review D, 114(2), Article 022006. https://doi.org/10.1103/mjfs-m6t7

KAGRA Collaboration, LIGO Scientific Collaboration, & Virgo Collaboration (2026). Search for planetary-mass ultracompact binaries using data from the first part of the LIGO-Virgo-KAGRA fourth observing run. Physical Review D, 114(2), Article 022005. https://doi.org/10.1103/s551-7pch

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GWTC-4.0: Population Properties of Merging Compact Binaries. Astrophysical Journal Letters, 1005(2), Article L51. https://doi.org/10.3847/2041-8213/ae771e

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). Narrowband Searches for Continuous Gravitational Waves from known Pulsars in the First Two Parts of the Fourth LIGO–Virgo–KAGRA Observing Run. Astrophysical Journal, 1005(2), Article 221. https://doi.org/10.3847/1538-4357/ae77fc

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). Constraints on Gravitational Waves from the 2024 Vela Pulsar Glitch. Astrophysical Journal, 1005(1), Article 12. https://doi.org/10.3847/1538-4357/ae63bc

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GW230814: Investigation of a Loud Gravitational-wave Signal Observed with a Single Detector. Astrophysical Journal Letters, 1004(2), Article L23. https://doi.org/10.3847/2041-8213/ae2ad3

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GWTC-4.0: Updating the Gravitational-wave Transient Catalog with Observations from the First Part of the Fourth LIGO–Virgo–KAGRA Observing Run. Astrophysical Journal Letters, 1004(2), Article L22. https://doi.org/10.3847/2041-8213/ae2c74

LIGO Scientific Collaboration, Virgo Collaboration, & KAGRA Collaboration (2026). GWTC-4.0: Methods for Identifying and Characterizing Gravitational-wave Transients. Astrophysical Journal Letters, 1004(2), Article L21. https://doi.org/10.3847/2041-8213/ae447b