Model grids represent the basis for an enormous number of astrophysical studies and are a valuable help in many fields. The paper “New grids of stellar models from 0.8 to 120 M at Z = 0.020 and Z = 0.001”, by Schaller, Schaerer, Meynet, & Maeder, has had a strong impact reaching by today (April 14 2009) a total of 1900 citations in the (incomplete) ADS Citation database. What are the reasons fo...

While magnetic fields have long been considered to be important for the evolution of non-degenerate stars and compact stars, it has become clear in recent years that actually all are deeply affected. This is particularly true regarding their internal angular momentum distribution, but may also influence mixing processes even fate star. We propose a new framework stellar simulations, which inter...