Why the universal threshold for primordial black hole formation is universal

被引：0
|
作者：
Kehagias, Alex [1 ]
Perrone, Davide [2 ,3 ]
Riotto, Antonio [2 ,3 ]
机构：
[1] Natl Tech Univ Athens, Phys Div, Athens 15780, Greece
[2] Grav Wave Sci Ctr, Dept Theoret Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland
[3] Grav Wave Sci Ctr, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland
来源：
CLASSICAL AND QUANTUM GRAVITY | 2025年 / 42卷 / 05期
基金：
瑞士国家科学基金会;
关键词：
primordial black holes; self-similarity; cosmology; GRAVITATIONAL COLLAPSE; ENERGY;
D O I：
10.1088/1361-6382/adaffc
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show why the threshold for primordial black hole formation is universal (independent from the shape of the perturbation) when expressed in terms of the volume averaged compaction function. The proof is rooted in the self-similarity of the gravitational collapse phenomenon at criticality.
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页数：7
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