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The formation and subsequent migration of gas giants could significantlyaffect the material mixing in the Solar System. In this study, we use N-bodysimulations to investigate how much water is transported into the region of theterrestrial planet formation during the growth and migration phases of Jupiterin the Grand Tack model. We found that Jupiter's growth was accompanied bysignificant mass transport, and that a substantial amount of water (about 10times Earth's ocean mass for the initial planetesimal distribution based on theminimum-mass solar nebula) was transported into the terrestrial planet region.The total amount delivered increased further during Jupiter's migration phase(totaling about 10-40 times Earth's ocean mass), which was less dependent onsimulation parameters. In addition, at these stages, terrestrial planets werenot fully grown. Therefore, water supplied during these early stages couldinteract with metallic iron during the core formation of protoplanets and/orgrowing Earth. Since hydrogen in water molecules can dissolve into their cores,this could explain the density deficit observed in the current Earth core.Notably, Jupiter could play an important role as a ''barrier'' in explainingthe dichotomy of the isotopic compositions between noncarbonaceous (NC) andcarbonaceous (CC) meteorites. This study's results show that Jupiter's growthnecessitates some mixing of NC and CC materials.

Early water delivery to terrestrial planet regions during the stages of Jupiter's formation and migration in the Grand Tack model