Image Details
Caption: Figure 3.
The relationship between the semimajor axis a and evolution timescales for BBH mergers in the M50k-IMF-All-r0.01 model. tGW, represented by dots, denotes the GW merger timescale, while tc, shown as crosses, denotes the collisional (close-encounter) timescale.
© 2026. The Author(s). Published by the American Astronomical Society.