Primordial Black holes and search of dark matter of the universe
Kavli Institute for Physics and Mathematics of the Universe are studying Primordial Black holes (PBH)are the black holes that could have originated in the very beginning of the universe before the birth of stars and galaxies
Studies suggest these black holes could account for dark-matter, and could also explain gravitational wave signals and the birth of the supermassive black holes. They could also explain the synthesis of heavy elements during neutron collisions.
The team of Kavli IPMU members Alexander Kusenko, Misao Saaki, Sunao Sugiyama, Masahiro Takada, and Volodymyr Takhistar are trying to look for the early universe for clues where the positive energy density function is more than 50 percent that would have created a black hole.
There are high possibilities that the collapse of baby universes that created during inflation(the period of rapid expansion that created the structures of today’s universe ) is responsible for the formation of primordial black holes.
In their paper, the team described the formation of PBH and black holes from the ‘multiverse’ scenario can be found using the Hyper Suprime-Cam (HSC) of 8.2 Subaru Telescope, a gigantic digital camera placed near the summit of MT Mauna Kea.
The First HSB observation have already reported a very intriguing candidate event consistent with PBH from the “multiverse” with a black hole mass compared to the mass of the moon