Ei. Staritsin, Evolution of rotating massive main sequence stars: The role of sheer turbulence in the radiative envelope of a 16 M-circle dot star, ASTRON REP, 43(9), 1999, pp. 592-600
Shear turbulence in the radiative envelope of a rotating massive main-seque
nce star transfers angular momentum from deep inner layers up to the surfac
e. As a result, the impact of rotation on the radius of the star increases,
causing the main sequence to broaden.