The first 200 kyr of the Solar System: making the planetary material diversity. Issue Volume 14:Issue S345(2019) (August 2018)

• Record Type: Journal Article
• Authors: Pignatale, Francesco C.; Charnoz, Sébastien; Chaussidon, Marc; Jacquet, Emmanuel
• Editors: Elmegreen, Bruce G.; Tóth, L. Viktor; Güdel, Manuel
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S345(2019)
• Page Start: 137
• Page End: 140
• Publication Date: 2018-08
• Subjects: solar system: formation, -- meteors, -- meteoroids, -- stars: formation, -- (stars:) planetary systems: protoplanetary disks; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921318008311
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Chondrites are made of a mixture of solids formed at high and low temperatures. This heterogeneity was thought to be produced by large scale transport processes in the Sun's isolated accretion disk. However, mounting evidences suggest that refractory inclusions in chondrites were produced together with the disk formation. We present numerical simulations of the formation and transport of rocky materials during the collapse of the Solar Nebula's parent cloud and the consequent disk assembling. We find that the interplay between the cloud collapse, the dynamics of gas and dust and thermal processing of different species in the disk, results in a local mixing of solids with different thermal histories. Our simulations return an heterogeneous distribution of refractory material with higher concentration in the outer disk. This refractory material has a short formation timescales, during the first tens of kyr of the Sun (class 0-I). Our results open new frontiers into the origin of the compositional diversity of chondrites.