Misc,

Large grains can grow in circumstellar discs

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(2013)cite arxiv:1308.5181Comment: Submitted to the conference proceedings of the IAU Symposium 299 - Exploring the formation and evolution of planetary systems. 2 pages; 2 figures.

Abstract

We perform coagulation & fragmentation simulations to understand grain growth in T Tauri & brown dwarf discs. We present a physically-motivated approach using a probability distribution function for the collision velocities and separating the deterministic & stochastic velocities. We find growth to larger sizes compared to other models. Furthermore, if brown dwarf discs are scaled-down versions of T Tauri discs (in terms of stellar & disc mass, and disc radius), growth at the same location with respect to the outer edge occurs to similar sizes in both discs.

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