The battle against the inexorable force of gravity ... lost. Part II.
Intermediate: 2-8 solar masses. Radiative structure
High mass stars: more than 8 solar masses. Convective core + radiative mantle.
How massive do stars get?
Upper limit set by radiation pressure:
a star more massive than about 100 solar masses will blow itself apart.
Breaking News! Stellar masses cannot exceed 150 solar masses