对不稳定爆炸：观测证据
Pair-Instability Explosions: observational evidence
摘要：
几十年前，理论上已经预测，由于电子-正电子对的产生，发展出大氧核的超大质量恒星将变得动态不稳定。这种氧核的坍缩导致强大的热核爆炸，使恒星脱离束缚，在某些情况下可以产生许多太阳质量的放射性56 Ni。多年来，在自然界中没有观察到这种过程的例子。在这里，我简要回顾了最近对发光超新星的观测，这些超新星可能是由附近和遥远宇宙中的对不稳定性爆炸引起的。
英文摘要：
It has been theoretically predicted many decades ago that extremely massive stars that develop large oxygen cores will become dynamically unstable, due to electron-positron pair production. The collapse of such oxygen cores leads to powerful thermonuclear explosions that unbind the star and can produce, in some cases, many solar masses of radioactive 56Ni. For many years, no examples of this process were observed in nature. Here, I briefly review recent observations of luminous supernovae that likely result from pair-instability explosions, in the nearby and distant Universe.
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