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Abstract <p>Poisson noise in the initial spatial distribution of primordial black holes (PBHs) leads to their active clustering in the early Universe. Using a simple model, this work examines the internal dynamics of clusters, the formation of binary black holes and their mergers. It is shown that PBH binaries formed at the radiation-dominated phase are actively perturbed and make a subdominant contribution to gravitational wave events compared to PBHs mergers in clusters.</p>

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Primordial Black Hole Binaries: The Impact of Poisson Clustering

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • V. Stasenko

摘要

Abstract

Poisson noise in the initial spatial distribution of primordial black holes (PBHs) leads to their active clustering in the early Universe. Using a simple model, this work examines the internal dynamics of clusters, the formation of binary black holes and their mergers. It is shown that PBH binaries formed at the radiation-dominated phase are actively perturbed and make a subdominant contribution to gravitational wave events compared to PBHs mergers in clusters.