Dark Matter Can Consist of Primordial Black Holes
Hubble discovers Black Holes in unexpected places.

The analysis of black holes that may have emerged in the early universe was performed by researchers from the Kavli Institute for Physics and Mathematics of the Universe. Before stars and galaxies were born, these so-called primordial black holes are thought to have formed. Primordial black holes could account for all or most of dark matter and be liable for some of the gravitational wave signals and supermassive black holes detected in our galaxy’s core and others that have been observed.

Researchers also theorise that when they collide with neutron stars and kill them, releasing neutron-rich material, primordial black holes may play a role in the synthesis of heavy elements. The most popular hypothesis is that there are primordial black holes made of dark matter. During the analysis, researchers looked at the early universe for hints on primordial black holes.

Dark Matter Can Consist of Primordial Black Holes

They claim the early universe was so dense that a black hole would be formed by any positive density fluctuation of more than 50 per cent. The right conditions for black holes to form may have been generated by a variety of processes in the early universe. The probability that primordial black holes could form from “baby universes” produced during inflation is another exciting prospect put forward by the research team. Inflation is a rapid expansion phase that is thought to be responsible for seeding galaxies and galaxy clusters that we are seeing today.

Baby universes could break off from our universe during inflation, producing a baby or daughter universes that would inevitably collapse. The vast amount of energy released in the small-volume causes the existence of a black hole. Universes may exist in a state that appears distinct from an observer on the inside and the outside, according to Einstein’s theory of gravity. Observers would see an expanding universe on the inside, while observers would see that as a black hole on the outside (such as us).

We will see huge and tiny baby universes as primordial black holes concealing the fundamental structure of multiple universes behind the event horizon of the black hole. The researchers identified a scenario for primordial black hole creation in the paper and showed that the Hyper Suprime-Cam on the Subaru Telescope in Hawaii could be used to detect black holes from the “multiverse.”

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