Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-09-19
Dans SF2A-2007: Semaine de l'Astrophysique Francaise - SF2A-2007: Semaine de l'Astrophysique Francaise, Grenoble : France (200
Astronomy and Astrophysics
Astrophysics
6 pages, 4 figures, to appear in the proceedings of "SF2A-2007: Semaine de l'Astrophysique Francaise", (J. Bouvier, A. Chalaba
Scientific paper
We present the first results of the treatment of grain growth in our 3D, two-fluid (gas+dust) SPH code describing protoplanetary disks. We implement a scheme able to reproduce the variation of grain sizes caused by a variety of physical processes and test it with the analytical expression of grain growth given by Stepinski & Valageas (1997) in simulations of a typical T Tauri disk around a one solar mass star. The results are in agreement with a turbulent growing process and validate the method. We are now able to simulate the grain growth process in a protoplanetary disk given by a more realistic physical description, currently under development. We discuss the implications of the combined effect of grain growth and dust vertical settling and radial migration on subsequent planetesimal formation.
Fouchet Laure
Gonzalez Jean-François
Laibe Guillaume
Maddison Sarah T.
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