合并导致气体流向星系中心，从而触发象快速的恒星形成一类的现象。
Mergers cause gases to flow towards the galactic center, which can trigger phenomena like rapid star formation.
近期的恒星形成本身似乎由星风和超新星爆发触发，来自前代大质量恒星，清除和压缩了分子气体。
The recent star formation itself was likely triggered by winds and supernova explosions, from previous generations of massive stars, that swept up and compressed the molecular gas.
新的研究指出，仙王座B的恒星形成过程是由分子云外的一个明亮，大质量的恒星（HD217086）的辐射所触发的。
The new study suggests that starformation in Cepheus B is mainly triggered by radiation from onebright, massive star (HD 217086) outside the molecular cloud.
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