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GW230814: Investigation of a Loud Gravitational-wave Signal Observed with a Single Detector
A. G. Abac et al 2026 The Astrophysical Journal Letters 1004 .
Caption: Figure 14.
The ﹩{\mathrm{log}}_{10}﹩ Bayes factors (﹩{\mathrm{log}}_{10}{ \mathcal B }﹩) and detection statistics (﹩{ \mathcal D }﹩) from the Kerr and DS pyRing pipelines (top) and the QNMRF pipeline (bottom), quantifying the consistency of the data with the presence of a secondary mode at various starting times. None of the pyRing analyses provide evidence for a secondary mode, as all yield ﹩{ \mathcal B }\lt 10﹩ (dashed black line) for times beyond tLLO. Similarly, QNMRF does not identify any two-mode combination beyond 220 that meets an FAP threshold of 1% (dashed colored lines).
© 2026. The Author(s). Published by the American Astronomical Society.