Protostars and Planets VI, Heidelberg, July 15-20, 2013

Poster 2H008

Planetesimal Formation in Zonal Flows

Dittrich, Karsten (Max Planck Institute for Astronomy, Heidelberg, Germany)
Klahr, Hubert (Max Planck Institute for Astronomy, Heidelberg, Germany)
Johansen, Anders (Lund Observatory, Lund University, Sweden)
Trieloff, Mario (Institute for Geosciences, University of Heidelberg, Germany)
Spurzem, Rainer (ARI, Heidelberg, Germany & NAOC, Beijing, China)

Recent numerical simulations show long lived sub- and super-Keplerian flows in protoplanetary disks. These so-called zonal flows are found in local as well as global simulations of magneto-rotationally unstable disks. The resulting gas over- and under-densities have a radial size of 5 local pressure scale heights, and are stable for several tens of orbits. This is the first study about the effects of zonal flows on dust particles. Centimeter sized particles reach a hundred-fold density enhancement without self-gravity.

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