We present an overview of the Milky Way (MW) and nearby galaxy science case for the Single Aperture Large Telescope for Universe Studies (SALTUS) far-infrared (IR) NASA probe-class mission concept. SALTUS offers enormous gains in spatial resolution and spectral sensitivity over previous far-IR missions due to its cold (<40 K) 14-m primary mirror. Key MW and nearby galaxy science goals for SALTUS focus on understanding the role of star formation in feedback in the local universe. In addition to this science case, SALTUS would open a new window to galactic and extragalactic communities in the 2030s, enabling fundamentally new questions to be answered, and would be a far-IR analog to the near- and mid-IR capabilities of the James Webb Space Telescope. We summarize the MW and nearby galaxy science case and plans for notional observing programs in both guaranteed and guest (open) times.

中文翻译：

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银河系和邻近星系科学与 SALTUS 太空天文台


我们概述了用于宇宙研究的单孔径大型望远镜 (SALTUS) 远红外 (IR) NASA 探测器级任务概念的银河系 (MW) 和邻近星系科学案例。由于其冷 (<40 K) 14 米主镜，SALTUS 比以前的远红外任务在空间分辨率和光谱灵敏度方面取得了巨大的进步。 SALTUS 的关键 MW 和附近星系科学目标侧重于了解恒星形成在当地宇宙反馈中的作用。除了这个科学案例之外，SALTUS 还将为 2030 年代的银河系和河外社区打开一扇新的窗口，从根本上回答新的问题，并且将是詹姆斯号近红外和中红外能力的远红外模拟韦伯太空望远镜。我们总结了MW和邻近星系的科学案例以及在保证时间和客座（开放）时间内的概念观测计划的计划。