Massive Primordial Black Holes in Contemporary and Young Universe (old predictions and new data)
A.D. Dolgov
TL;DR
The paper reviews recent astronomical data showing a high population of heavy black holes, discusses a 1963 mechanism explaining their abundance, and explores primordial black holes as dark matter candidates.
Contribution
It revisits a historical mechanism explaining heavy black hole abundance and proposes primordial black holes as dark matter, supported by recent observational data.
Findings
Heavy black holes are abundant in the universe.
A 1963 mechanism qualitatively explains black hole populations.
Primordial black holes could serve as cosmological dark matter.
Abstract
A brief review of the recent astronomical data, indicating that the universe is abundantly populated by heavy black holes (BH), is presented. Conventional astrophysics and cosmology cannot explain such a high population of BHs. A mechanism of the paper of 1963 is described, which at least qualitatively explained the observational data. In particular, the prediction that massive primordial BHs can be cosmological dark matter "particles" is discussed.
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