Collisional processes in extrasolar planetesimal discs – dust clumps in Fomalhaut ’ s debris disc

Abstract

This paper presents a model for the outcome of collisions between planetesimals in a debris disc, and assesses the impact of collisional processes on the structure and size distribution of the disc. The model is presented by its application to Fomalhaut’s collisionally replenished dust disc; a recent 450-μm image of this disc shows a clump embedded within… (More)

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