Image Details
Caption: Figure 3.
Distribution of the effective spin parameter (χeff) as a function of the mass ratio (q) for MRR BBHs from the same model as in Figure 1. The population is partitioned by binary evolutionary channel: SMT (blue) and CE (orange). The blue contour denotes the 90% credible region inferred for GW241011.
© 2026. The Author(s). Published by the American Astronomical Society.