Dust production from collisions in extrasolar planetary systems: The inner beta-pictoris disc
Jul, 2003
14 pages
Published in:
- Astron.Astrophys. 408 (2003) 775-788
e-Print:
- astro-ph/0307167 [astro-ph]
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Abstract: (arXiv)
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 in radius taking into account fragmentation and cratering according to different prescriptions. A very particular attention is paid to the smallest particles, close to the radiation pressure induced cut-off size , which are placed on highly eccentric orbits by the stellar radiation pressure....(abstract continued in the uploaded paper)- PLANETARY SYSTEM FORMATION
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