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Dust Rings in the Circumstellar Gas Disks

Published online by Cambridge University Press:  26 May 2016

Taku Takeuchi  and
Pawel Artymowicz
Taku Takeuchi
Affiliation:
Stockholm Observatory, S-133 36 Saltsjöbaden, Sweden
Pawel Artymowicz
Affiliation:
Stockholm Observatory, S-133 36 Saltsjöbaden, Sweden

Abstract

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In optically thin gas disks around young Vega-type stars, dust grains are exposed to the stellar radiation pressure and gas drag force. The combination of these forces pushes the grains away from the central star. Typically, 10–100 μm grains migrate outward to become concentrated at the outer edge of the gas disk. A dust ring naturally forms without the help of clearing bodies, such as planets or brown dwarfs.

Type
Part IV: Protoplanetary and β Pic disks
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 375 - 377
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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