Why the Universal Threshold for Primordial Black Hole Formation is Universal
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910438946504704 |
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| author | Kehagias, Alex Perrone, Davide Riotto, Antonio |
| author_facet | Kehagias, Alex Perrone, Davide Riotto, Antonio |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_05208 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Why the Universal Threshold for Primordial Black Hole Formation is Universal Kehagias, Alex Perrone, Davide Riotto, Antonio Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology 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. |
| title | Why the Universal Threshold for Primordial Black Hole Formation is Universal |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2405.05208 |