标题： 什么引发了Ia型超新星：原始黑洞的快速爆炸还是伴星？ 显示英文标题

标题： What triggers type Ia supernovae: Prompt detonations from primordial black holes or companion stars?

摘要： 我们建立了并进行了以小行星质量原初黑洞（PBH）形式存在的暗物质与白矮星之间的碰撞率模拟。 这些相遇会引发即时爆炸，并可能是解决Ia型超新星点火之谜的关键。 我们的框架足够灵活，可以涵盖所有母体白矮星质量、宿主星系恒星质量、银河中心径向偏移和宇宙时间的范围。 速率分布模式与略微扩展的对数正态PBH质量谱的详尽文献观测结果一致。 最引人注目的是，迄今为止无法解释的亮度分布无需微调即可得出。 我们没有发现严重的矛盾，除了推断出的PBH质量尺度无法从第一原理预测之外。 显示英文摘要

摘要： We set up and perform collision rate simulations between dark matter in the form of asteroid-mass primordial black holes (PBHs) and white dwarf stars. These encounters trigger prompt detonations and could be the key to solving the ignition mystery of type Ia supernovae. Our framework is flexible enough to cover the full range of progenitor white dwarf masses, host galaxy stellar masses, galactocentric radial offsets, and cosmic time. The rate distribution pattern is consistent with exhaustive literature observational determinations for a slightly extended log-normal PBH mass spectrum. Most strikingly, the so far unexplained brightness distribution comes out without finetuning. We find no severe contradictions, except that the inferred PBH mass scale is unpredicted from first principles.