............... Conclusions
- There is wholesale redistribution of material during core formation.
- Embryos can scatter planetesimals away or open gaps.
- Planetesimals can cause embryos to migrate.
- This fundamentally changes growth rates.
- Fragmentation does much more harm than good.
- If fragments are big, they push the embryos inward.
- Need to avoid ~100m sized objects.
- If fragments are small, they sweep by the embryos.
- The sweet-spot is narrow.
- Outward planetesimal driven migration is the most effective way to get cores.
- The outer most core is always the largest.
- However, we did not let the cores accrete gas, which could effect these results.
- Evaporation and recondensation at snow-line is also effective.
- Planetesimals/fragments must be small.
- Only effects the inner most cores.
This talk can be found at
www.boulder.swri.edu/~hal/talks.html
This work was supported by a grant from the US's NSF.
