Possibility of Primordial black holes Collision with Earth and the Consequences

Abstract

In the context of the existence of primordial black holes (PBHs), they may compose a fraction of the dark matter of the Universe. Assuming that PBHs fill the dark content of the Milky Way Galaxy in the Galactic halo and dark disk, we calculate the probability of collision of the PBHs with Earth. This collision has different consequences as heating the interior of the earth through dynamical friction and accretion processes. In this work, we calculate the rate of collisions and a fraction of black holes that can be trapped inside the earth. Finally, we compare the danger of PBH collision with the asteroid impacts on Earth.