论文标题
别忘了抬头
Don't Forget To Look Up
论文作者
论文摘要
我们讨论了一个假设的存在威胁，从直径10公里的bolide撞击前6个月发现，一个病例是彗星，另一种是小行星。我们表明，使用一系列穿透器的货物碎片化工作的扩展，但在穿透器中用小核爆炸装置（NED）进行了修饰，并结合即将实现的重型升力发射资产，具有正面$ C_3 $，例如NASA SLS或SpaceX Starship（具有内在的驻留式加油），就足以使这种存在的威胁。彗星以40 km/s的闭合速度和小行星的20 km/s撞击地球的威胁将具有大约65泰拉长TNT的影响，或者比当前全世界的当前组合核武库大约一千千倍。这与大约6600万年前杀死恐龙的KT灭绝事件相似。这样的事件（即使没有缓解）将是对人类的生存威胁。我们表明，即使有6个月警告的时间为6个月，也可以使用现有技术来想象缓解措施，但是NED能源的有效耦合至关重要。
We discuss a hypothetical existential threat from a 10 km diameter bolide discovered 6 months prior to impact with one case being a comet and the other being an asteroid. We show that an extension of our work on bolide fragmentation using an array of penetrators but modified with small nuclear explosive devices (NED) in the penetrators, combined with soon-to-be-realized heavy lift launch assets with positive $C_3$ such as NASA SLS or SpaceX Starship (with in-orbit refueling) is sufficient to mitigate this existential threat. A threat of this magnitude hitting the Earth at a closing speed of 40 km/s for the comet and 20 km/s for the asteroid would have an impact energy of roughly 65 Teratons TNT, or about ten thousand times larger than the current combined nuclear arsenal of the entire world. This is similar in energy to the KT extinction event that killed the dinosaurs some 66 million years ago. Such an event, if not mitigated, would be an existential threat to humanity. We show that mitigation is conceivable using existing technology, even with the short time scale of 6 months warning, but that the efficient coupling of the NED energy is critical.
