Eccentricity in Disguise? Insights from GW231123 and Numerically Simulated Binary Black Hole Merger Signals

Koustav Chandra, Johann Fernandes, Akshita Mittal +1

GW231123 is a gravitational-wave signal originating from the merger of a black hole binary with total mass $\sim 250M_{\odot }$, the largest ever detected by the LIGO-Virgo-Kagra C…