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Chemical and Dynamical Evolution of Dust in the Solar Nebula


April 3, 2018, 3:30 p.m. - 4:30 p.m.
Geology 3656

Presented By:
Fred Ciesla
University of Chicago

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The early stages of planet formation involve the coagulation of sub-micron dust that was suspended in the solar nebula into larger aggregates, which themselves come together to form the building blocks of the planets. During this stage of growth, dust grains and the bodies in which they are contained are subjected to a number of dynamical processes which caused them to migrate significant distances from where they first formed. Evidence for this redistribution is readily found in the meteorite record, with chondritic meteorites made of individual components that record very different formation conditions. This transport will expose dust grains to a variety of environments which will drive chemical and physical evolution of the dust grains. I will present results which allow us to begin understanding the feedbacks between dynamical and chemical evolution within the solar nebula, and how these effects may be seen in the meteorite record as well as planet-forming disks around other stars.