Abstract
We present results from the first extensive study of convection zones in the envelopes of hot
massive stars, which are caused by opacity peaks associated with iron and helium ionization.
These convective regions can be located very close to the stellar surface. The region in the
Hertzsprung-Russel diagram in which we predict the convection zones and the strength of
this convection is in good agreement with the occurrence and strength of microturbulence in
massive stars. We further argue that convection close to the surface may trigger clumping at
the base of the stellar wind of hot massive stars.
| Original language | Undefined/Unknown |
|---|---|
| Title of host publication | Evolution and pulsation of massive stars on the main sequence and close to it |
| Editors | A. Noels |
| Place of Publication | Vienna |
| Publisher | Austrian Academy of Sciences Press |
| Pages | 61-65 |
| Number of pages | 5 |
| Publication status | Published - 7 Jul 2008 |