The role of the time step and overshooting in the modelling of PMS evolution: the case of EK Cephei

J. P. Marques, J. Fernandes, M. J. P. F. G. Monteiro

We have produced detailed evolutionary models of the binary EK Cep using the CESAM stellar evolution code (Morel 1997). A ${\chi }^2$-minimisation was performed to derive the most reliab…