No CrossRef data available.
Published online by Cambridge University Press: 15 November 2004
Contrary to what is assumed in building standard stellar models, all stars undergo some mild mixing in their radiation zones. This mixingis due mainly to a slow thermally driven meridional circulation, andshear turbulence presumably contributes to it.It is the rotation of the star which isresponsible for these motions, and therefore the transport of angular momentum must be described in time and space when modeling stellar evolution. This rotational mixing plays an important role in the evolution of massive stars; in particular it determines the late, pre-supernova phases. We review the present state of the problem and discuss briefly the open questions.