What type of study is this?

This is a Cross-Sectional Study study.

September 24, 2025Open Access

Upper Limits on the Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run

View Full Paper

Ask AI

Bookmark

Authors

Analysis reveals no significant isotropic gravitational-wave background from compact binaries, suggesting limits on emergent theories.

No statistically significant isotropic gravitational-wave background signal was detected, constraining theoretical models.
Fractional energy density from compact binary coalescences was constrained to Ω_GW(25Hz) ≤ 2.0 × 10^{-9}, a significant improvement over previous results.
The analysis confirms terrestrial magnetic noise remains below detection thresholds, allowing clearer observations of cosmic signals.
We estimate the binary black hole merger contribution to the gravitational-wave background is Ω_BBH(25Hz) = 0.8^{+1.1}_{-0.5} × 10^{-9}.

Collaboration et al. (2025) studied this question.

View Full Paper

Ask AI

Bookmark