Terrestrial planet and asteroid belt formation by Jupiter-Saturn chaotic excitation.

ABSTRACT: The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system's protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~ 1.5 au (i.e., the disk mass was concentrated within this boundary). The asteroid belt also holds crucial information about the origin of such a narrow disk. Several scenarios may produce a narrow disk. However, simultaneously replicating the four terrestrial planets and the inner solar system properties remains elusive. Here, we found that chaotic excitation of disk objects generated by a near-resonant configuration of Jupiter-Saturn can create a narrow disk, allowing the formation of the terrestrial planets and the asteroid belt. Our simulations showed that this m

SUBMITTER: Lykawka PS 

PROVIDER: S-EPMC10042868 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature