Ultra-faint signatures of galaxy growth seen through the cosmic haze

该项目旨在通过使用创新的新仪器来探测天文学家所见过的一些最微弱的结构，从而揭示星系合并的宇宙食人现象。该项目将提供对大型星系消耗其较小兄弟星系所经历的质量增长的全面测量，这将为我们对暗物质的理解提供关键测试。该项目还将对附近星际云的前景薄雾进行超高灵敏度测量，这是减轻其对欧几里得太空望远镜等数十亿美元项目影响的关键一步。这些云的空间结构的统计数据将帮助我们了解新恒星是如何在我们自己的银河系中诞生的。

This project aims to uncover the cosmic cannibalism of galaxy mergers, by using innovative new instrumentation to detect some of the faintest structures ever seen by astronomers. The project will provide a comprehensive measurement of the mass growth experienced by large galaxies consuming their smaller siblings, which will provide a critical test of our understanding of dark matter. The project will also conduct ultra-high-sensitivity measurements of the foreground haze from nearby interstellar clouds, a crucial step towards mitigating its impact on billion-dollar projects such as the Euclid space telescope. The statistics of spatial structures in these clouds will help us to understand how new stars are born in our own Milky Way.