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Assembling GW231123 in Star Clusters through the Combination of Stellar Binary Evolution and Hierarchical Mergers

  • Authors: Lavinia Paiella, Cristiano Ugolini, Mario Spera, Marica Branchesi, Manuel Arca Sedda

Lavinia Paiella et al 2025 The Astrophysical Journal Letters 994 .

  • Provider: AAS Journals

Caption: Figure 2.

Distribution of primary BH generations for simulated BBH mergers with component masses in the 90% CI of GW231123. We distinguish between models with metallicity Z = 0.002 (filled steps) or Z = 0.0002 (open steps) and among YCs (blue steps), GCs (purple steps), and NCs (orange steps).

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