Scientists from the Kavli Physics and Mathematics Institute (Japan) have described a new scenario for the emergence of primordial black holes, which were formed even before the birth of stars and galaxies. The researchers also reported the possible discovery of such an object, which is consistent with the scenario of the existence of neighboring universes. This is reported in a paper published in the journal Physical Review Letters, and the study is summarized at Phys.org.
Cosmologists concluded that primordial black holes may have originated 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 into 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 multiverse scenario.
