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Observable signatures of dust evolution mechanisms which shape the planet forming regions

Published online by Cambridge University Press:  10 November 2011

Olja Panić ,
Tilman Birnstiel ,
Ruud Visser  and
Elco van Kampen
Olja Panić
Affiliation:
European Southern Observatory, Karl-Schwarzschild Strasse 2, 85748, Garching bei München, Germany email: [email protected]
Tilman Birnstiel
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
Ruud Visser
Affiliation:
Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
Elco van Kampen
Affiliation:
European Southern Observatory, Karl-Schwarzschild Strasse 2, 85748, Garching bei München, Germany email: [email protected]
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Abstract

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Overdensity of dust with respect to the gas in the planet forming regions is a crucial prerequisite to form larger bodies and eventually planets. We use a state-of-the-art code to simulate dust evolution processes in gas-rich circumstellar discs, including the viscous gas evolution. We find significant deviations of the radial distribution of dust from that of the gas as early as 1-2Myr. These deviations are closely related to the efficiency of grain growth. Apparent discrepancies between dust and gas distributions are suggested by the current millimetre interferometer observations, and ALMA will allow us tointerpret any such discrepancies in the context of dust evolution.

Keywords

stars: pre–main-sequencecircumstellar matterplanetary systems: protoplanetary disksplanets and satellites: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S276: The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution , October 2010 , pp. 450 - 452
Copyright
Copyright © International Astronomical Union 2011

References

Birnstiel, T., Dullemond, C. P., & Brauer, F. 2010, A&A, 513, A79Google Scholar
Brauer, F., Dullemond, C. P. & Henning, Th. 2008, A&A, 480, 859Google Scholar