The Astrophysical Journal Letters· 2025Q1
GW231123: A Binary Black Hole Merger with Total Mass 190–265 M ⊙
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Short summary
The GW231123 signal detected by LIGO indicates a merger of two black holes, one with mass ~13-23 M⊙ and the other ~10-22 M⊙, forming a remnant black hole of 190-265 M⊙. Both black holes had high spins (0.9 and 0.8).
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Astronomy and AstrophysicsPhysics and Astronomy