论文标题
限制了$ 0.01 \，以银河系的c $ c $恒星发动机的限制
Constraints on the abundance of $0.01\,c$ stellar engines in the Milky Way
论文作者
论文摘要
恒星发动机是假设的巨型结构，可从宿主恒星中提取能量，通常是为了产生推力和加速恒星系统。我们探讨了恒星发动机可以实现的最大潜在速度，并确定在最佳条件下可能可以实现高达$ \ sim 0.1 \ $ \ sim 0.1 \的速度。相反，银河系中天然天体物理现象的产生速度极不可能。因此，可能会利用对超速级星星的星体调查来以银河系的方式对高速恒星发动机进行共同搜索。可能会导致其丰度的界限，但这需要有关此类发动机的时空分布的某些假设，这些假设不能保证是有效的。
Stellar engines are hypothesized megastructures that extract energy from the host star, typically with the purpose of generating thrust and accelerating the stellar system. We explore the maximum potential speeds that could be realizable by stellar engines, and determine that speeds up to $\sim 0.1\,c$ might perhaps be attainable under optimal conditions. In contrast, natural astrophysical phenomena in the Milky Way are very unlikely to produce such speeds. Hence, astrometric surveys of hypervelocity stars may be utilized to conduct commensal searches for high-speed stellar engines in the Milky Way. It may be possible to derive bounds on their abundance, but this requires certain assumptions regarding the spatiotemporal distribution of such engines, which are not guaranteed to be valid.
