标题： K-EUSO空间观测站的预期性能 显示英文标题

标题： Expected performance of the K-EUSO space-based observatory

摘要： K-EUSO是JEM-EUSO计划中的一项任务，旨在从太空研究超高能宇宙射线（UHECR），将部署在国际空间站上。 K-EUSO观测站由一个视场宽的紫外望远镜组成，旨在检测大气中广延空气簇射（EAS）发出的荧光光。 EAS事件将以$\sim$1-2.5 秒的时间分辨率进行采样，以高精度重建整个簇射剖面。 由$\sim$$10^5$ 个独立像素组成的探测器将使地面的空间分辨率达到$\sim$700 米。 从400公里的高度，K-EUSO将实现大范围和全天空的曝光，以采样UHECR谱的最高能量范围。 在本次贡献中，我们介绍了观测站性能的估计：对预期曝光和触发事件率随能量变化的估计，以及事件重建性能，包括UHECR到达方向和能量的分辨率。 显示英文摘要

摘要： K-EUSO is a planned mission of the JEM-EUSO program for the study of ultra-high energy cosmic rays (UHECR) from space, to be deployed on the International Space Station. The K-EUSO observatory consists of a UV telescope with a wide field of view, which aims at the detection of fluorescence light emitted by extensive air showers (EAS) in the atmosphere. The EAS events will be sampled with a time resolution of $\sim$1-2.5 s to reconstruct the entire shower profile with high precision. The detector consisting of $\sim$$10^5$ independent pixels will allow a spatial resolution of $\sim$700 m on ground. From a 400 km altitude, K-EUSO will achieve a large and full sky exposure to sample the highest energy range of the UHECR spectrum. In this contribution, we present estimates of the performance of the observatory: an estimation of the expected exposure and triggered event rate as a function of energy and the event reconstruction performance, including resolution of arrival directions and energy of UHECRs.