Cepheids
- Convection with extended overshoot differs from MLT concept
- Production of pressure waves in the simulations (resolution effect?)
AGB stars and M supergiants
- Pressure waves turn into shocks and induce strong temperature/density fluctuations
- Fluctuations are crucial for dust formation and Teff(onset)
M dwarfs
- Mixing of dust due to convective overshoot, gravity waves
- Onset of forsterite dust formation around Teff=2500 K at logg=5
(grid)
Brown dwarfs
- Mixing of dust due to convective overshoot, gravity waves, dust convection
- Parametrized mixing description in PHOENIX describes colors of MLT dwarfs well
- Influence of underlying gas convection zone decreases with Teff
- Dust clouds, horizontal advection, weather, climate...: local models still adequate?