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Rapid Intermediate-mass Black Hole Formation via Runaway Mergers of Black Holes

  • Authors: Yining Sun, Long Wang

Yining Sun and Long Wang 2026 The Astrophysical Journal Letters 1005 .

  • Provider: AAS Journals

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.

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