Dust production from collisions in extrasolar planetary systems. The inner beta Pictoris disc

  title={Dust production from collisions in extrasolar planetary systems. The inner beta Pictoris disc},
  author={Philippe Jacqu. Thebault and Jean Augereau and Herv'e Beust},
  journal={Astronomy and Astrophysics},
Dust particles observed in extrasolar planetary discs originate from undetectable km-sized bodies but this valuable information remains uninteresting if the theoretical link between grains and planetesimals is not properly known. We outline in this paper a numerical approach we developed in order to address this issue for the case of dust producing collisional cascades. The model is based on a particle-in-a-box method. We follow the size distribution of particles over eight orders of magnitude… 

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