Hot primordial regions with anomalous hydrogenless chemical composition
arXiv:2208.05033 · doi:10.3390/sym14071452
Abstract
We study primordial nucleosynthesis in hypothetical hot regions that could be formed by the primordial density inhomogeneities. It is shown that the regions survived up to the present times acquire an abnormally high metallicity. This conclusion holds in wide range of initial parameters of such regions. We considered the thermonuclear reaction rates and estimated abundances of deuterium and helium-3 and -4 inside these areas. It has been established that all baryons tend to form helium-4, which is the thermonuclear link in the chain of formation of heavier elements.
12 pages, 6 figures,1 table. v2: Version accepted for publication Symmetry
References in corpus (8)
- Primordial Black Holes as Dark Matter Candidates
- The Clustering Evolution of Primordial Black Holes
- Primordial Black Hole Dark Matter and the LIGO/Virgo observations
- Early formation of galaxies initiated by clusters of primordial black holes
- Electromagnetic probes of primordial black holes as dark matter
- Connecting the Extremes: A Story of Supermassive Black Holes and Ultralight Dark Matter
- Strong clustering of primordial black holes from Affleck-Dine mechanism
- Neutrino cooling effect of primordial hot areas in dependence on its size