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The first 200 kyr of the Solar System: making the planetary material diversity

Published online by Cambridge University Press:  13 January 2020

Francesco C. Pignatale Open the ORCID record for Francesco C. Pignatale [Opens in a new window] ,
Sébastien Charnoz ,
Marc Chaussidon  and
Emmanuel Jacquet
Francesco C. Pignatale
Affiliation:
Muséum national d’Histoire naturelle, UMR 7590, CP52, 57 rue Cuvier, 75005, Paris, France, email: [email protected] Institut de Physique du Globe de Paris (IPGP), 1 rue Jussieu, 75005, Paris, France
Sébastien Charnoz
Affiliation:
Institut de Physique du Globe de Paris (IPGP), 1 rue Jussieu, 75005, Paris, France
Marc Chaussidon
Affiliation:
Institut de Physique du Globe de Paris (IPGP), 1 rue Jussieu, 75005, Paris, France
Emmanuel Jacquet
Affiliation:
Muséum national d’Histoire naturelle, UMR 7590, CP52, 57 rue Cuvier, 75005, Paris, France, email: [email protected]
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Abstract

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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.

Keywords

solar system: formationmeteorsmeteoroidsstars: formation(stars:) planetary systems: protoplanetary disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 137 - 140
Copyright
© International Astronomical Union 2020 

References

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