Mint stars have a few big tricks up their sleeve. Most common is a weak magnetic field- they lack convective zones, eliminating their internal dynamos. As a result, they produce nearly no stellar wind or x-ray light. Their coronae are cold and their rotation rate doesn't slow as fast as most stars, producing the other interesting oddity common to such heavy stars: they can often be oblate. Whirling about themselves at speeds common to much less massive gas giants, the equator bulges out so far that many aspects of the star visibly change. The equator can be two thousand degrees cooler than the pole, emitting redder light- and perhaps even producing its own localized convective zone. As a result, mint stars exemplify the weirdness that presents itself among heavy, short-lived stars.
