Scientists at the Kavli Physics and Mathematics Institute described a new scenario for the emergence of primordial black holes, which were formed before the birth of stars and galaxies. The researchers also reported on the possible discovery of such an object, which is consistent with the scenario of the existence of neighboring universes. This is reported in an article published in Physical Review Letters briefly on the study explained at Phys.org.
Cosmologists have come to the conclusion that primordial black holes could have arisen from “infant universes” formed during inflation – a period of rapid expansion of the main universe. Small universes collapse quickly, but a large amount of energy released in a small volume of space creates a black hole. If the infant universe is large enough, then the external observer sees it as a black hole, and the internal one as an expanding universe.
Primary black holes can hypothetically be detected using the giant Hyper Suprime-Cam digital camera mounted on Subaru’s 8.2-meter telescope on Mauna Kea, Hawaii. Astronomers record an event of an increase in the brightness of a star, which indicates the passage of a black hole against its background, bending the rays of light. The magnitude of the increase in brightness allows us to determine the mass of the black hole, and scientists have already discovered a possible primordial black hole with the mass of the moon, which corresponds to the scenario of the multiverse.