Almost 30 years have passed since the successful detection of supernova neutrinos from SN 1987A. In the last decades, remarkable progress has been made in neutrino detection technique, through which it may be possible to detect neutrinos from a new source, pre-supernova (pre-SN) neutrinos. They are emitted from a massive star prior to core bounce. Because neutrinos escape from the core freely, they carry information about the stellar physics directly. Pre-SN neutrinos may play an important role in verifying our understanding of stellar evolution for massive stars. Observations of pre-SN neutrinos, moreover, may serve as an alarm regarding a supernova explosion a few days in advance if the progenitor is located in our vicinity, enabling us to observe the next galactic supernova. In this review, we summarize the current status of pre-SN neutrino studies from both of the theoretical and observational points of view.

中文翻译：

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超新星前中微子的理论预测及其探测

自 SN 1987A 成功探测到超新星中微子以来，已经过去了将近 30 年。在过去的几十年里，中微子探测技术取得了显着进步，通过这种技术，有可能从新的来源——超新星前（pre-SN）中微子中探测到中微子。它们是在核心反弹之前从一颗大质量恒星发出的。因为中微子可以自由地从核心逃逸，它们直接携带有关恒星物理的信息。Pre-SN 中微子可能在验证我们对大质量恒星演化的理解方面发挥重要作用。此外，如果前身中微子位于我们附近，那么对超新星前中微子的观测可能会提前几天作为超新星爆炸的警报，使我们能够观测下一个银河系超新星。在这次审查中，