天文学家们观察了一颗巨型恒星最后的“撞击”阶段,证实了关于巨型恒星如何爆炸的理论。 Astronomers observe a massive star's final "hiccuping" stages, confirming theories on how huge stars explode.
天文学家,包括来自贝尔法斯特皇后大学的一组人, 在爆炸前的最后阶段, 观测到了一颗稀有的“撞击”恒星, 是太阳质量的150倍。 Astronomers, including a team from Queen's University Belfast, have observed a rare "hiccuping" star, 150 times the mass of the sun, in its final stages before explosion. 由于一个称为脉冲对等不稳(PPI)的过程,恒星经历了极端的脉冲,其热核迅速收缩和膨胀。 The star underwent extreme pulses due to a process called Pulsational Pair Instability (PPI), where its hot core rapidly contracts and expands. 这证实了理论预测,并提供了对巨型恒星如何运行和塑造宇宙的洞察力。 This confirmed theoretical predictions and provides insights into how massive stars function and shape the universe. 研究结果发表在《天体物理期刊》上。 The findings were published in the Astrophysical Journal.