Formation of Primordial Black Hole Clusters from Phase Transitions in the Early Universe
| Autor: | Leonid A. Khromykh, A. A. Kirillov, Valery V. Nikulin, Sergey G. Rubin |
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| Rok vydání: | 2019 |
| Předmět: |
Inflation (cosmology)
Physics Phase transition media_common.quotation_subject Primordial black hole Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galactic nuclei Galaxy Universe Electronic Optical and Magnetic Materials General Relativity and Quantum Cosmology Scalar field Quantum fluctuation media_common |
| Zdroj: | Bulletin of the Lebedev Physics Institute. 46:97-99 |
| ISSN: | 1934-838X 1068-3356 |
| DOI: | 10.3103/s1068335619030060 |
| Popis: | A new model of the formation of primordial black holes (PBHs) is considered. The PBH generation mechanism is based on the collapse of massive walls formed in a scalar field during second-order phase transitions caused by quantum fluctuations during inflation. An essential feature of the mechanism is the formation of primordial black holes in the form of clusters. An analytical spectrum of PBH masses is obtained. We also demonstrate the possibility of forming the clusters with a total mass of ∼ 105–108M☉, ∼ 1 pc in size, and ∼ 1011 in number, which corresponds to the observational data on the number of galaxies in the visible region of the Universe. The prospect for the use of the proposed approach as a new scenario of the formation of galactic nuclei in the early Universe is shown. |
| Databáze: | OpenAIRE |
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