Transport of solids in protoplanetary disks: Comparing meteorites and astrophysical models

摘要: Abstract We review models of chondrite component transport in the gaseous protoplanetary disk. Refractory inclusions were likely transported by turbulent diffusion and possible early disk expansion, required low turbulence for their subsequent preservation disk, possibly a dead zone. Chondrules produced locally but did not necessarily accrete shortly after formation. Water may have been enhanced inner because inward drift solids from further out, more than factor few. Incomplete condensation chondrites be due to slow reaction kinetics during temperature decrease. While carbonaceous compositions might reproduced “two-component” picture ( Anders, 1964 ), such components would correspond simple petrographic constituents, although part refractory element fractionations inclusions. Overall, considerations alone favor an earlier formation relative non-carbonaceous counterparts, independent objections yet resolved.