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Title:
Outward Transport of High-Temperature Materials Around the Midplane of the Solar Nebula
Authors:
Ciesla, Fred J.
Publication:
Science, Volume 318, Issue 5850, pp. 613- (2007).
Publication Date:
10/2007
Category:
ASTRONOMY
Origin:
SCIENCE
DOI:
10.1126/science.1147273
Bibliographic Code:
2007Sci...318..613C

Abstract

The Stardust samples collected from Comet 81P/Wild 2 indicate that large-scale mixing occurred in the solar nebula, carrying materials from the hot inner regions to cooler environments far from the Sun. Similar transport has been inferred from telescopic observations of protoplanetary disks around young stars. Models for protoplanetary disks, however, have difficulty explaining the observed levels of transport. Here I report the results of a new two-dimensional model that shows that outward transport of high-temperature materials in protoplanetary disks is a natural outcome of disk formation and evolution. This outward transport occurs around the midplane of the disk.
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Physics
arXiv e-prints