4:15 PM - 4:30 PM
[PPS08-28] Late Stage Capture of Solids by Growing Gas Giant Planets
Keywords:Planet Formation, Giant Planet, Heavy Elements
They revealed that much more planetesimals than Hayashi Disk are needed to be consistent with the enriched heavy elements in Jupiter's envelope and Saturn tends to capture much more planetesimals than Jupiter.The latter result is inconsistent with the estimations.
Then in our study, the effects of supply limit of gas from protoplanetary disk, gap opening in the protoplanetary disk, and formation of circumplanetary disk on the capture of planetesimals are evaluated by the orbital integration of planetesimals in the model of gas structure around planet.We revealed that the opening of gap in protoplanetary disk doesn't affect the capture of planetesimals, but the formation of circumplanetary disk increase the mass of captured planetesimals.And the difference of the growth rate between Jupiter and Saturn makes the mass of captured planetesimals by Jupiter increase as much as Saturn.These results alleviate the contradiction between internal structure theory and planet formation theory.