Garvoturbulent planetesimal formation - state and prospects of the field

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• Klahr, H (MPI for Astronomy)
• Wednesday 30 September 2009, 15:30-16:30
• Seminar Room 1, Newton Institute.

If you have a question about this talk, please contact Mustapha Amrani.

Dynamics of Discs and Planets

Planetesimals may well form from the gravitational collapse of a particle cloud, the so called, pre-planetesimals, once they got concentrated by turbulent flow features, possibly enhanced by a streaming instability. This talk shall give an overview of the state of the field and summarize what we know and what we still have to learn about this mechanism.

I will discuss the formation and redistribution of the pre-planetesimals. I will also address the role of resolution in our numerical simulations and in how far this relates to the possible initial planetesimal masses. I show that the mass of the planetesimals is actually determined by the rate at which pre-planetesimals drift through the disk.

The talk shall further discuss a list of open questions concerning gravoturbulent planetesimal formation and how this model may fit to the observational findings of our solar system.

This talk is part of the Isaac Newton Institute Seminar Series series.

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