Signatures of a Subpopulation of Hierarchical Mergers in the GWTC-4 Gravitational-Wave Dataset
Cailin Plunkett; S. Vitale; T. A. Callister; M. Zevin; Society of Physicists Interested in Non-Aligned Spins (SPINS) · 2026 · Physical Review Letters
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
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Abstract (excerpt)
Repeated black-hole mergers in dense stellar clusters are a plausible mechanism to populate the predicted gap in black hole masses due to the pair-instability supernova process. These hierarchical mergers carry distinct spin…
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Metadata source: OpenAlex · DOI 10.1103/n6p4-ftgq