We have computed wind models with time-dependent dust formation and grain-size dependent opacities, where (1) the problem is simplified by assuming a fixed dust-grain size, and where (2) the radiation pressure efficiency is approximated using grain sizes based on various means of the actual grain size distribution. It is shown that in critical cases, the effect of grain sizes can be significant. For well-developed winds, however, the effects on the mass-loss rate and the wind speed are small.
Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants
- Pub Date:
- September 2011
- Astrophysics - Solar and Stellar Astrophysics
- 2 pages, 2 figures. To be published in the proceedings of the conference "Why Galaxies Care about AGB Stars II", held in Vienna, August 16-20, 2010