Gas and dust fractionation in the Solar Nebula: from the inner regions to larger scales
IPGP - Îlot Cuvier
Centre De Recherche Astrophysique De Lyon
The combined effect of condensation and aerodynamical (density and size) sorting of grains is one of the proposed mechanisms to explain the chemical fractionation observed in chondrites. In the first part of this talk I will present condensation maps of the inner hotter Solar Nebula and possible fractionation pathways which could lead to the formation of the bulk material of chondrites. In the second part, I will focus on larger scales showing that chemical fractionation can also occur when considering the entire disc.