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Stokes trapping and planet formation

Wilkinson, M.; Mehlig, B. and Uski, V. (2008). Stokes trapping and planet formation. Astrophysical Journal Supplement Series, 176(2) pp. 484–496.

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It is believed that planets are formed by aggregation of dust particles suspended in the turbulent gas forming accretion disks around developing stars. We describe a mechanism, termed "Stokes trapping", by which turbulence limits the growth of aggregates of dust particles, so that their Stokes number (defined as the ratio of the damping time of the particles to the Kolmogorov dissipation timescale) remains close to unity. We discuss possible mechanisms for avoiding this barrier to further growth. None of these is found to be satisfactory, and we introduce an alternative hypothesis, which does not involve the growth of small clusters of dust grains.

Item Type: Journal Article
Copyright Holders: 2008 The American Astronomical Society
ISSN: 1538-4357
Academic Unit/Department: Mathematics, Computing and Technology > Mathematics and Statistics
Item ID: 25385
Depositing User: Michael Wilkinson
Date Deposited: 11 Dec 2010 16:48
Last Modified: 28 Jan 2014 10:43
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