Migration processes in the Solar System and their role in the evolution of the Earth and planets
S.I. Ipatov V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygina str. 19, Moscow, 119991, Russian Federation
The paper deals with the problem of planetesimals migration in the forming Solar System and in exoplanetary systems. Models of the evolution of the protoplanetary disk and accumulation of planets, as well as the processes of formation of the Moon, asteroid and trans-Neptunian belts are thoroughly discussed. It is shown that the Earth and Venus could acquire more than half of their mass in 5 million years while their outer layers could accumulate the same matter from different parts of the feeding zone of these planets. Migration of small bodies to the terrestrial planets from different regions of the Solar System with the use of computer simulation has been studied in detail. Based on these calculations, it was concluded that the mass of water delivered to the Earth from beyond the Snow line by planetesimals, comets and carbonaceous chondrite asteroids could be comparable to the mass of the Earths oceans. The processes of dust migration in the Solar System and the sources of the zodiacal cloud are considered.
Keywords: Solar System, migration, planetesimals, terrestrial planets, giant planets, the growth of planetary embryos, the formation of the Moon, the probability of collisions, rarefied condensations, exoplanetary systems DOI:10.3367/UFNe.2021.08.039044 Citation: Marov M Ya, Ipatov S I "Migration processes in the Solar System and their role in the evolution of the Earth and planets" Phys. Usp., accepted
Received: 11th, July 2021, revised: 9th, August 2021, accepted: 21st, August 2021