Abstract
We describe a Monte Carlo model that simulates dust migration in a porous cometary nucleus. We present computations for media in which the pore-size distributions are either random or normal; additional computations indicate that media with power-law size distributions behave very similarly to random distributions. We show how the average time to cross the medium varies as a function of porosity and how the structure of the medium varies with time. Implications for the structure of the cometary nucleus are discussed.
Original language | English |
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Pages (from-to) | 348-354 |
Number of pages | 7 |
Journal | Icarus |
Volume | 137 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 1999 |
Keywords
- Comet surfaces
- Comets
- Ices