K-band spectrum of the very massive star W49nr1

Very massive stars (M>100M_{sun}_) are very rare objects, but have a strong influence on their environment. The formation of this kind of objects is of prime importance in...质量大于100倍太阳质量（M_sun）的极高质量恒星是一类极为稀有的天体，但它们对所处环境有着极强的影响。此类天体的形成过程在……中具有核心重要性。