Research

Since about 1980 our group has been at the forefront in the study of the evolution of massive stars.

In the mid 90’s, the inclusion of differential rotation in the Geneva stellar evolution code, with a careful treatment of rotational instabilities such as meridional circulation or secular shear, has improved the agreement between models and observations in many aspects, such as the observed surface abundances enrichment (see Heger & Langer 2000, Meynet & Maeder 2000) or the ratio of blue-to-red supergiants at low metallicity (see Maeder & Meynet 2001).

Extended grids of stellar models has been computed and are available for public use.

The main research topic of our group remains the effect of rotation, explored now in various domain of stellar evolution as the followings: